The Metabolic Classroom with Dr. Ben Bikman
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How Your Nervous System Controls Metabolism: Fight or Flight vs Rest & Digest
29 september 2025 · 29 min
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In this foundational Metabolic Classroom lecture, Dr. Ben Bikman unpacks the vital role of the autonomic nervous system (ANS) in maintaining health and metabolic balance.
The ANS, a part of the peripheral nervous system, regulates involuntary processes such as heart rate, digestion, respiratory rate, and blood pressure—largely without conscious control. It's divided into two branches: the sympathetic (fight or flight) and parasympathetic (rest and digest) systems.
Dr. Bikman first explains how the sympathetic system is designed to mobilize energy quickly through hormones like epinephrine. While short-term activation (like during exercise or danger) is beneficial, prolonged sympathetic activity—known as sympathetic overdrive—can lead to insulin resistance, mitochondrial stress, oxidative damage, and fat accumulation in organs like the liver and muscle.
Conversely, the parasympathetic system, largely driven by the vagus nerve, supports digestion, insulin release, recovery, and metabolic regulation. He emphasizes the importance of heart rate variability (HRV) as a measure of balance between these systems and overall metabolic health.
Practical strategies to promote parasympathetic tone and restore ANS balance include breath work (like the 4-7-8 technique), exercise, cold therapy, avoiding late-night glucose spikes, and creating a strong wind-down routine before bed. The message is clear: managing stress and supporting ANS flexibility is crucial for metabolic health and long-term disease prevention.
Show Notes/References:
For complete show notes and references, we invite you to become an Insider subscriber. You’ll enjoy real-time, livestream Metabolic Classroom access which includes live Q&A with Ben after the lecture, ad-free podcast episodes, show notes and references, and online, live Office Hours access with Dr Bikman. It…
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Honey & Maple Syrup vs. Sugar: What’s Better for Metabolic Health?
14 september 2025 · 18 min
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In this episode of the Metabolic Classroom, Dr. Ben Bikman explores whether natural sweeteners like honey and maple syrup might be better metabolic alternatives to table sugar. He begins with a fascinating historical background, including honey’s use as a wound-healing agent in World War I, and transitions into modern research that investigates their effects on blood sugar, insulin, weight, and satiety.
Unlike refined sugar, both honey and maple syrup contain antioxidants, enzymes, flavonoids, and minerals that may lessen their glycemic impact and support metabolic health. Raw honey, in particular, may help reduce allergy symptoms due to pollen exposure, and its darker varieties are richer in antioxidant compounds. Ben explains how some of these compounds may inhibit fat cell growth and promote fat breakdown at a molecular level.
However, when it comes to human studies, the evidence is mixed. Some show neutral effects on glucose and insulin, while others suggest small improvements in lipid markers or appetite regulation. Animal studies tend to show more promising outcomes. In summary, while neither honey nor maple syrup should be consumed freely, they are likely better options than refined sugar when used in moderation—especially in their raw or less-processed forms.
Show Notes/References:
For complete show notes and references, we invite you to become an Insider subscriber. You’ll enjoy real-time, livestream Metabolic Classroom access which includes live Q&A with Ben after the lecture, ad-free podcast episodes, show notes and references, and online, live Office Hours access with Dr Bikman. It also includes Ben’s Research Review Podcast, and a searchable archive that includes all Metabolic Classroom episodes and Research Reviews. Learn more: https://www.benbikman.com
IMPORTANT NOTE: The information presented is not intende…
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The Truth About Statins & Women’s Health: Can They Harm More Than They Help?
7 september 2025 · 24 min
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In this important Metabolic Classroom lecture, Dr. Bikman examines the use of statins in women, particularly for primary prevention of cardiovascular disease.
While statins are widely prescribed to lower LDL cholesterol and ApoB levels, Ben highlights research showing that these markers are weak predictors of cardiovascular risk in women. In contrast, metabolic markers like insulin resistance and type 2 diabetes are far more predictive—often increasing cardiovascular risk by up to 10-fold.
He discusses how statins may ironically worsen metabolic health by impairing insulin sensitivity, increasing type 2 diabetes risk (especially in postmenopausal women), and altering the gut microbiome in a way that reduces GLP-1 production. He also notes statin-induced side effects that disproportionately affect women, such as muscle pain, brain fog, and even potential risks during pregnancy. While statins may have limited value for secondary prevention, their risks—especially in women who haven’t had a cardiovascular event—warrant serious caution.
In the final portion of the lecture, Dr. Bikman outlines practical, lifestyle-based strategies to improve metabolic health without the need for statins. These include resistance training, a smart-carb diet, and stress/sleep management. He also shares evidence-based supplements like CoQ10, omega-3s, magnesium, and alpha-lipoic acid that may help mitigate some of statins’ side effects if they are used.
Show Notes/References:
For complete show notes and references, we invite you to become an Insider subscriber. You’ll enjoy real-time, livestream Metabolic Classroom access which includes live Q&A with Ben after the lecture, ad-free podcast episodes, show notes and references, and online, live Office Hours access with Dr Bikman. It also includes Ben’s Research Review Podcast, and a searchable archiv…
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Can You Build Muscle on a Low-Carb Ketogenic Diet? What the Science Says
30 augustus 2025 · 27 min
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During this mini lecture, Dr. Bikman tackles the popular misconception that building muscle requires carbohydrates and insulin spikes. He begins by reframing insulin's role—not as a muscle-building hormone, but primarily as an anti-catabolic signal that helps prevent muscle breakdown.
Contrary to long-held beliefs, insulin doesn’t directly stimulate muscle protein synthesis, even at high levels. Instead, the real muscle-building heroes are essential amino acids, particularly leucine, which directly activate mTOR and stimulate muscle growth—even in the context of a low-carb, ketogenic diet.
Dr. Bikman emphasizes that amino acids not only promote protein synthesis but also prevent muscle degradation—effectively replicating and even exceeding insulin's effects. He then shifts the focus to ketones, especially beta-hydroxybutyrate (BHB), which offer unique metabolic advantages. Ketones reduce the brain’s demand for glucose, thereby preserving muscle-derived amino acids that would otherwise be converted into fuel. They also improve mitochondrial function and resilience, support anti-inflammatory signaling, and protect against muscle loss during aging, bedrest, or intense training.
Drawing on published studies and findings from his own lab, Ben discusses how BHB helps preserve lean muscle mass, enhance ATP production, and resist oxidative stress. Research in rodents and humans shows BHB’s muscle-protective effects extend to both performance enhancement and recovery. Finally, he addresses exogenous ketones as a potential supplement for those who want the benefits of ketones without following a strict ketogenic diet. Whether you’re an athlete or simply seeking longevity, Dr. Bikman makes a compelling case that a well-formulated low-carb, high-protein, ketogenic diet can be optimal for maintaining—and even building—muscle.
Show Notes…
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What Migraine Sufferers Need to Know About Metabolism & Insulin Resistance
25 augustus 2025 · 27 min
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This week’s Metabolic Classroom lecture is a deep dive into the metabolic roots of migraines—a condition that affects millions but is rarely discussed through the lens of insulin resistance and energy dysregulation.
Dr. Bikman explains that migraines are more than just headaches; they’re complex neurological events often triggered by disruptions in how the brain accesses and uses energy. When the brain becomes insulin resistant, its ability to efficiently metabolize glucose falters, increasing susceptibility to migraines due to energy shortfalls and inflammation.
Ben outlines how factors like mitochondrial dysfunction, oxidative stress, and low serotonin—often seen in people with poor metabolic health—are strongly associated with migraine onset. He highlights how common triggers such as glucose spikes, hormonal fluctuations, and inflammation are not just surface-level issues but symptoms of deeper metabolic dysfunction.
The lecture also presents a compelling case for ketogenic diets and ketone supplementation as therapeutic strategies. Drawing from both historical and modern clinical studies, Dr. Bikman shows how ketones can bypass the broken glucose pathways in the insulin-resistant brain, offering a cleaner fuel that improves cellular energy and reduces inflammation. Ultimately, the lecture emphasizes the need to address the root metabolic imbalances to reduce both the frequency and severity of migraines.
Show Notes/References:
For complete show notes and references, we invite you to become an Insider subscriber. You’ll enjoy real-time, livestream Metabolic Classroom access which includes live Q&A with Ben after the lecture, ad-free podcast episodes, show notes and references, and online, live Office Hours access with Dr Bikman. It also includes Ben’s Research Review Podcast, and a searchable archive that includes all Me…
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The Real Cause of Fat Gain: Genetics, Hormones, and Insulin
18 augustus 2025 · 25 min
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In this Metabolic Classroom lecture, Dr. Bikman explains how rare genetic forms of obesity—known as monogenic obesity—reveal deep insights into how the body stores fat and why the “calories in, calories out” model falls short.
He introduces three genetic conditions—leptin deficiency, POMC deficiency, and MC4R mutations—that disrupt appetite control and fat storage, all while keeping calorie intake the same. These disorders highlight how hormonal imbalances, especially chronically elevated insulin, play the decisive role in whether energy is stored or burned.
Ben walks through the hypothalamic POMC pathway, a brain circuit central to hunger and metabolism. Disruptions in this pathway don’t just make people feel constantly hungry; they reprogram the entire body to hoard calories as fat, even when calorie intake is strictly controlled. Animal and human studies consistently show that these conditions drive dramatic fat gain without an increase in food consumption, clearly separating energy intake from energy storage.
In all three conditions, the common endpoint is hyperinsulinemia—chronically elevated insulin levels—which drives fat storage and insulin resistance. Whether leptin is missing, POMC signals are silenced, or MC4R is defective, insulin surges as the body shifts into extreme conservation mode. This reinforces the idea that obesity is often less about willpower and more about hormonal signaling. Understanding these rare conditions sheds light on more common forms of obesity and reveals that insulin—not just calories—is the gatekeeper of fat storage.
Show Notes/References:
For complete show notes and references, we invite you to become an Insider subscriber. You’ll enjoy real-time, livestream Metabolic Classroom access which includes live Q&A with Ben after the lecture, ad-free podcast episodes, show notes and referenc…
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Yerba Mate and Metabolism: What the Science Says
7 augustus 2025 · 28 min
In this Metabolic Classroom, Ben explores the fascinating metabolic effects of yerba mate, a traditional South American tea that’s gaining attention in scientific circles. Yerba mate contains a synergistic mix of bioactive compounds, including xanthines (like caffeine), chlorogenic acid, and saponins—all of which contribute to its wide-ranging health benefits. Dr. Bikman explains how this unique brew supports fat loss, improves mitochondrial efficiency, regulates appetite, and enhances insulin sensitivity. Lees meer
Drawing from human and rodent studies, the lecture highlights yerba mate’s ability to increase fat oxidation, particularly when combined with exercise. It also activates AMPK, a critical energy-regulating enzyme, which promotes glucose uptake and mitochondrial biogenesis. One of the most intriguing effects of yerba mate is its stimulation of GLP-1—both directly through the gut and indirectly by modifying the gut microbiome—making it a natural, non-pharmaceutical way to enhance satiety and insulin regulation.
Dr. Bikman also discusses the underappreciated role of bitter taste receptors in the body—not just on the tongue, but also in fat cells and the gut. Yerba mate interacts with these receptors to influence hormone release (like CCK and PYY) and to promote thermogenesis in brown and beige fat, offering yet another pathway for metabolic support. Finally, he shares unpublished findings from his lab showing yerba mate’s impact on hepatic redox balance, adding to its reputation as a powerful metabolic ally.
Ben’s favorite yerba mate and fiber supplement: https://ufeelgreat.com/usa/en/c/1BA884
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The Link Between Muscle Loss, Aging and Obesity: Anabolic Resistance Explained w/Dr. Ben Bikman
30 juli 2025 · 32 min
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In this Metabolic Classroom lecture, Ben explores the concept of anabolic resistance—the body’s reduced ability to build and maintain muscle in response to stimuli like protein intake and resistance training.
This phenomenon, often associated with aging, also affects individuals with obesity or a sedentary lifestyle. Because muscle health is directly tied to longevity, strength, insulin sensitivity, and independence, understanding and reversing anabolic resistance is critical for long-term metabolic health.
Dr. Bikman explains the key drivers of anabolic resistance: reduced anabolic hormone levels, impaired amino acid delivery, inflammation, and cellular changes such as insulin resistance and intramuscular lipid buildup. He emphasizes the central role of the mTOR signaling pathway in muscle protein synthesis, and how factors like age, obesity, and inactivity blunt this response—even when adequate nutrients and exercise are present.
The lecture ends with practical strategies to overcome anabolic resistance, including resistance training, high-leucine animal protein intake, creatine, omega-3s, vitamin D3, and even peptides. Ben stresses that building muscle isn’t just about looking good—it’s about preventing frailty, insulin resistance, and loss of independence. Resistance training is non-negotiable, and diet alone will never be enough to restore optimal muscle health.
Show Notes/References:
For complete show notes and references, we invite you to become an Insider subscriber. You’ll enjoy real-time, livestream Metabolic Classroom access which includes live Q&A with Ben after the lecture, ad-free podcast episodes, show notes and references, and online, live Office Hours access with Dr Bikman. It also includes Ben’s Research Review Podcast, and a searchable archive that includes all Metabolic Classroom episodes and Re…
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The Sugar Diet: What the Science Really Says
17 juli 2025 · 38 min
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In this episode of the Metabolic Classroom, Dr. Ben Bikman explores a surprising and controversial dietary trend: the “sugar diet.”
Despite its name, this diet isn’t built around candy and soda. Instead, it promotes a very high intake of simple carbohydrates—primarily from natural sources like fruit, honey, and juices—while restricting both protein and fat to below 10% of total calories. This unusual approach has been gaining popularity, especially among lean, athletic men, some of whom report improved energy, body composition, and insulin sensitivity.
Ben traces the diet's philosophical roots back to the 1930s rice diet used for managing kidney and heart disease, noting how both rely heavily on low-protein, high-carbohydrate intake. He reviews studies in both animals and humans showing that the key metabolic shifts—such as increased mitochondrial uncoupling, fat loss, and improved glucose control—may not be due to the sugar itself, but rather to the restriction of protein. This triggers a spike in FGF21, a liver hormone that enhances energy expenditure and metabolic health.
The lecture also examines the limitations of this approach. Dr. Bikman points out that the diet appears to work only under very specific conditions: in metabolically healthy individuals, especially men, with high physical activity levels. For others, particularly those prone to insulin resistance, food addiction, or poor satiety control, such a high-sugar diet could be problematic. He emphasizes that, as with all dietary interventions, context matters.
Ultimately, this lecture doesn’t promote the sugar diet but uses it as a lens to highlight the underestimated power of protein restriction in driving hormonal and mitochondrial adaptations. Dr. Bikman urges caution and encourages further exploration of how individual physiology responds to d…
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An Alternative View of T1DM
13 juli 2025 · 30 min
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In this lecture, Ben challenges the conventional insulin-centric model of type 1 diabetes by introducing the “bi-hormonal hypothesis” proposed by Dr. Roger Unger.
While insulin deficiency is a defining feature of T1DM, Dr. Bikman emphasizes the overlooked role of glucagon in driving hyperglycemia, ketone production, and muscle wasting. In normal physiology, insulin from beta cells locally suppresses glucagon from alpha cells. But in type 1 diabetes, this local regulation is lost, allowing glucagon to run unchecked—even when blood glucose is high.
Ben explains how injected insulin, although lifesaving, can’t mimic the precise intra-islet insulin levels needed to suppress glucagon secretion. This mismatch helps explain why blood sugar control can remain elusive despite appropriate insulin use. Excess glucagon ramps up liver glucose output and ketogenesis, creating a more complex hormonal storm than insulin alone can calm.
The lecture also explores new therapeutic strategies—including glucagon receptor blockers and GLP-1 agonists—that may help suppress glucagon more effectively. Dr. Bikman urges a shift in perspective: instead of seeing diabetes as just a disease of insulin, it’s time to recognize its bi-hormonal nature and tailor treatment accordingly.
For complete show notes and references, we invite you to become an Insider subscriber. You’ll enjoy real-time, livestream Metabolic Classroom access which includes live Q&A with Ben after the lecture, ad-free podcast episodes, show notes and references, online Office Hours access, Ben’s Research Review Podcast, and a searchable archive that includes all Metabolic Classroom episodes and Research Reviews. Learn more: https://www.benbikman.com
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Nitrates and Nitrites: Villain or Metabolic Hero?
5 juli 2025 · 24 min
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This Metabolic Classroom lecture explores the often misunderstood world of nitrates and nitrites—compounds historically feared due to their association with processed meats.
Dr. Bikman presents a balanced examination of their biological role, historical use, and potential risks and benefits. While concerns remain over their conversion into carcinogenic nitrosamines (mainly in animal studies), the real-world human data is inconsistent and largely correlational. In fact, vegetables are the largest dietary source of nitrates—not processed meats.
Far from being mere preservatives, nitrates and nitrites play a key role in converting to nitric oxide in the body, which supports vascular health, mitochondrial function, and even insulin sensitivity. Human and animal studies suggest nitrates can improve mitochondrial efficiency, promote blood flow, and enhance insulin signaling via cyclic GMP and PKG pathways. They may also encourage the browning of fat tissue, supporting metabolic flexibility.
Despite the correlation-based cancer fears often cited in media and observational studies, Dr. Bikman emphasizes the importance of context, dose, and confounding variables. He argues that nitrates and nitrites are bioactive compounds with legitimate metabolic benefits—far from the health villains they’re often made out to be.
Show Notes/References:
For complete show notes and references, we invite you to become an Insider subscriber. You’ll enjoy real-time, livestream Metabolic Classroom access which includes live Q&A with Ben after the lecture, ad-free podcast episodes, show notes and references, online Office Hours access, Ben’s Research Review Podcast, and a searchable archive that includes all Metabolic Classroom episodes and Research Reviews. Learn more: https://www.benbikman.com
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Menopause, Ketones, and Metabolism: A Strategy Explained
29 juni 2025 · 29 min
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This Metabolic Classroom lecture with Dr. Bikman explores how the loss of estradiol during menopause affects five key metabolic systems: the brain, muscles, mitochondria, fat tissue, and inflammation.
Each of these systems relies on estradiol for optimal function, and its decline contributes to increased risk for cognitive impairment, muscle loss, reduced mitochondrial function, increased visceral fat, and systemic inflammation.
Ketones—particularly beta-hydroxybutyrate (BHB)—can provide a partial compensatory effect in each system. In the brain, BHB supports glucose metabolism, reduces neuroinflammation, and enhances neuroplasticity. In muscles, ketones reduce protein degradation and improve mitochondrial function. At the mitochondrial level, BHB promotes mitochondrial biogenesis and helps reduce oxidative stress through NRF2 activation.
The lecture also outlines how ketones affect fat tissue by promoting mitochondrial uncoupling and upregulating thermogenic genes like UCP1. Additionally, BHB helps reduce inflammation by inhibiting the NLRP3 inflammasome. A final section reviews exogenous ketone strategies—salts, esters, acids, and MCTs—as potential tools to support women through menopause-related metabolic changes.
Show Notes/References:
For complete show notes and references, we invite you to become an Insider subscriber. You’ll enjoy real-time, livestream Metabolic Classroom access which includes live Q&A with Ben after the lecture, ad-free podcast episodes, show notes and references, online Office Hours access, Ben’s Research Review Podcast, and a searchable archive that includes all Metabolic Classroom episodes and Research Reviews. Learn more: https://www.benbikman.com
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How the MTHFR Gene Affects Our Metabolic Health
23 juni 2025 · 23 min
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In this Metabolic Classroom lecture, Dr. Bikman explores the MTHFR gene and how common mutations can affect overall metabolic health. Ben explains the biochemical role of the MTHFR enzyme in the methylation cycle, its influence on homocysteine levels, and its downstream impact on DNA repair, neurotransmitter synthesis, and detoxification.
Ben also discusses how impaired MTHFR function contributes to oxidative stress and insulin resistance, particularly through its effect on the insulin receptor’s expression and membrane insertion. He draws attention to the connection between poor methylation and chronic conditions like fatigue, hormone imbalance, and even cardiovascular risk.
The lecture also provides practical strategies to support healthy methylation, including the use of methylated B vitamins (such as methylfolate and methylcobalamin), food sources like liver, and appropriate cooking methods for plant-based folate. His emphasis throughout is on using targeted nutrition and lifestyle choices to compensate for genetic vulnerabilities.
Show Notes/References:
For complete show notes and references, we invite you to become an Insider subscriber. You’ll enjoy real-time, livestream Metabolic Classroom access which includes live Q&A with Ben after the lecture, ad-free podcast episodes, show notes and references, online Office Hours access, Ben’s Research Review Podcast, and a searchable archive that includes all Metabolic Classroom episodes and Research Reviews. Learn more: https://www.benbikman.com
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Creatine Demystified: Brain, Muscle & Metabolic Benefits
15 juni 2025 · 27 min
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In this Metabolic Classroom lecture, Dr. Bikman breaks down the true nature and benefits of creatine—a molecule often misunderstood as merely a muscle-building supplement. Creatine plays a critical role in cellular energy production by helping regenerate ATP, especially in high-energy tissues like skeletal muscle and the brain. While our bodies produce creatine endogenously, supplementation can significantly enhance its availability and effects.
Ben discusses how creatine has been shown to improve physical performance, support brain health, and even influence glucose metabolism. It helps increase strength, power output, and recovery during resistance training. In the brain, it supports cognitive function and may protect against neurodegenerative conditions. For individuals with insulin resistance or type 2 diabetes, creatine can improve glucose uptake by enhancing GLUT4 translocation.
He also addresses common myths—especially the misconception that creatine damages the kidneys. Ben emphasizes that while creatinine levels may rise with supplementation, this does not indicate harm in healthy individuals. He further explains the potential gene-level benefits of creatine, such as improved expression of IGF-1 and myogenic regulatory factors related to muscle health.
The lecture concludes with practical advice on dosing and choosing the right form of creatine, noting that creatine monohydrate remains the most effective and well-studied option. Ben encourages its use not just for athletes but for anyone looking to support muscle, brain, or metabolic health.
Show Notes/References:
For complete show notes and references, we invite you to become an Insider subscriber. You’ll enjoy real-time, livestream Metabolic Classroom access which includes live Q&A with Ben after the lecture, ad-free podcast episodes, show notes and references, onli…
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Can Nattokinase Improve Heart & Metabolic Health?
9 juni 2025 · 24 min
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In this Metabolic Classroom lecture, Dr. Bikman dives into the science behind nattokinase, an enzyme derived from natto—a fermented soybean staple in Japan. Nattokinase has gained attention for its cardiovascular benefits, especially its ability to dissolve blood clots. Ben explains the enzyme’s key role in degrading fibrin, the primary structural protein in clots, and how it stimulates the body’s own clot-dissolving pathway by activating plasminogen. He compares its action to pharmaceutical blood thinners like Warfarin but notes nattokinase may work without the same bleeding risks.
Beyond clot dissolution, Ben explores nattokinase’s effects on atherosclerosis. He shares clinical trial results where nattokinase reduced plaque size and arterial wall thickness, even outperforming statins in some metrics. The enzyme also appears to improve lipid profiles, including lowering triglycerides and slightly boosting HDL. Though Ben remains skeptical of LDL as a reliable heart disease predictor, these lipid changes are seen as beneficial.
The lecture also touches on how nattokinase might support metabolic health. Some human and animal studies suggest the enzyme improves insulin sensitivity, possibly by activating lipoprotein lipase and hormone-sensitive lipase, both involved in fat metabolism. Rodent studies also hint at a role in reducing lipid peroxidation, potentially decreasing levels of oxidized LDL, a strong predictor of heart disease. However, Ben notes more human research is needed to confirm these findings.
Dr. Bikman ends the lecture by acknowledging the limitations of current nattokinase research, such as small study sizes, inconsistent dosing, and questions around supplement bioavailability. Despite these gaps, he finds the cardiovascular evidence promising and suggests those interested might consider trying natto—the whole foo…
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The China Study Revisited - Science vs. Storytelling
2 juni 2025 · 21 min
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In this episode of The Metabolic Classroom, Dr. Bikman critically examines the claims made in The China Study, a popular book advocating for a plant-based diet based on correlational data from the China-Cornell-Oxford Project. While the book suggests that animal protein causes cancer and chronic disease, Ben emphasizes that correlation is not causation and points out that many of the study’s conclusions are misleading or unsupported by the raw data.
For example, some regions with higher meat consumption actually had lower cancer mortality, and wheat flour consumption showed a stronger correlation with heart disease than meat intake.
He also scrutinizes the rat experiments used to bolster the study’s conclusions. These studies involved pairing a powerful carcinogen with isolated casein (a dairy protein), resulting in cancer growth. However, Ben highlights that whole dairy, including fats like CLA and butyrate, may actually protect against cancer. He explains how isolating one protein and ignoring other nutrients misrepresents the effects of real, whole food consumption.
Ben then shifts to mechanisms and dissects the mTOR pathway, often cited in arguments against animal protein. He presents data showing that insulin—not leucine—is a much more potent and sustained activator of mTOR. This undermines the idea that animal protein is uniquely harmful and suggests that refined carbohydrates, which spike insulin, are more concerning in cancer development.
In conclusion, Dr. Bikman encourages viewers not to fear animal protein, especially when consumed with its natural fats in whole foods. He urges people to scrutinize bold dietary claims and recognize that refined carbs, not protein, are more consistently implicated in disease. While The China Study may have popularized plant-based eating, its scientific foundation is far less solid tha…
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Does the HCG Diet Actually Work? What the Studies Really Say
27 mei 2025 · 27 min
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During this Metabolic Classroom lecture, Dr. Bikman unpacks the history, claims, and science behind the controversial HCG diet.
Originally popularized in the 1950s by Dr. Albert Simeons, the diet pairs daily HCG hormone injections with an extremely low-calorie diet (around 500 calories/day). Simeons claimed that HCG helps target problem fat areas, preserve muscle, and suppress hunger. Ben explains HCG’s legitimate role in pregnancy and medical uses (e.g., infertility and hypogonadism), but emphasizes that its weight loss effects are unproven in non-pregnant individuals.
Ben reviews numerous randomized controlled trials and meta-analyses, all of which consistently show that HCG provides no measurable benefit over placebo for weight loss, hunger suppression, or muscle preservation. Anecdotal success stories may stem from the extreme calorie restriction or a placebo effect, rather than any metabolic impact of HCG. He explains that even pregnancy-level HCG doses only mildly affect thyroid hormones and that therapeutic doses used in the diet are far too low to significantly alter metabolism or fat-burning.
Biochemical and in vitro studies show that HCG may stimulate fat cell growth, particularly in newborns and under high concentrations, but it does not increase lipolysis in adult fat tissue. This contradicts the idea that HCG helps “melt” fat from stubborn areas. Furthermore, its role in reducing hunger is more likely due to nausea or psychological commitment rather than true satiety signaling.
In conclusion, Dr. Bikman cautions against using HCG as a shortcut for weight loss. The extreme calorie restriction is effective but unsustainable and potentially harmful. He recommends lowering insulin by controlling carbohydrates as a healthier first step, emphasizing a protein-focused, low-carb approach over starvation and hormone injections. H…
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How Lectins Disrupt Insulin, Gut Health, and Immunity
19 mei 2025 · 24 min
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In this lecture, Dr. Bikman introduces lectins as harmful plant-derived proteins often found in carbohydrate-rich foods like legumes, grains, and nightshades. While these molecules serve as plant defense mechanisms, in humans they can bind to gut lining cells, disrupting tight junctions and increasing gut permeability (leaky gut). This disruption allows bacterial fragments (e.g., LPS) to enter circulation, triggering systemic inflammation, which in turn increases insulin resistance, autoimmune reactivity, and cardiometabolic risk.
Lectins are also molecular mimics, capable of binding to insulin receptors and partially triggering insulin-like effects. This can lead to inappropriate fat storage, lipogenesis, and eventually insulin resistance as receptors become desensitized. Some lectins, like wheat germ agglutinin (WGA), have been shown in studies to both mimic and interfere with insulin signaling in fat cells—promoting fat gain and metabolic dysfunction even independent of calories.
Lectins are linked to obesity, cardiovascular disease, fatty liver, and autoimmune disorders. They can increase inflammatory cytokines, damage liver mitochondria, promote oxidative stress, and worsen non-alcoholic fatty liver disease (NAFLD). In susceptible individuals, lectins can also drive autoimmune flares, with evidence pointing to their role in molecular mimicry, leading to the generation of autoantibodies and aggravated immune responses.
While cooking methods like pressure cooking or fermenting can reduce lectin levels by up to 95%, they are never fully eliminated. Dr. Bikman concludes that for individuals with autoimmunity, insulin resistance, gut issues, or cardiovascular risk, reducing lectin intake may be wise. Monitoring markers like CRP, fasting insulin, and blood glucose can offer clues to lectin sensitivity, and while more human studies are …
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How Lipoprotein Lipase (LPL) Determines Where Your Body Stores Fat
12 mei 2025 · 23 min
In this Metabolic Classroom lecture, Dr. Bikman dives into the central metabolic role of lipoprotein lipase (LPL)—a largely unsung but crucial enzyme that governs whether fat is burned or stored and even where it accumulates in the body. Lees meer
LPL is anchored to capillary walls in tissues like fat, muscle, heart, and lactating mammary glands. It acts as a metabolic gatekeeper, hydrolyzing triglycerides from circulating lipoproteins (like chylomicrons and VLDL) into free fatty acids. Depending on the tissue, those fatty acids are either burned (e.g., in muscle) or stored (e.g., in fat cells). LPL activity is influenced by hormones, diet, age, exercise, and weight status, and it plays a role in both fat distribution and metabolic disease.
LPL expression is highly tissue-specific and hormonally regulated. For instance, insulin increases LPL in fat tissue (promoting fat storage) and suppresses it in muscle (reducing fat burning), whereas testosterone suppresses LPL in subcutaneous fat, especially in the buttocks and hips—explaining fat patterning differences between sexes. In contrast, estrogen increases LPL in subcutaneous areas, which supports healthier fat distribution in women. Interestingly, low-carb diets and exercise reverse this pattern, increasing muscle LPL and decreasing fat LPL, thus shifting the body into a fat-burning mode.
Ben also explains how weight loss impacts LPL expression. During weight loss, LPL activity in fat tissue tends to decline, but LPL gene expression can paradoxically increase, setting the stage for weight regain. He cites long-term studies showing that individuals with higher adipose LPL activity after dieting are more likely to regain fat. LPL in muscle tissue, however, increases after weight loss and exercise, supporting greater fatty acid oxidation. Thyroid hormone also influences LPL in both fat and muscle, revving up metabolism in hyperthyroid states and lowering LPL activity in hypothyroidism.
Finally, Ben links LPL to real-world cl…
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The Metabolic Effects of Fluoride
5 mei 2025 · 19 min
Dr. Ben Bikman opens this lecture with a comprehensive overview of fluoride’s history in public health, highlighting its original role in preventing dental cavities. However, he shifts the focus to its lesser-known systemic effects, particularly on metabolic health. Lees meer
Ben emphasizes emerging evidence that chronic exposure to fluoride—from water, toothpaste, and other products—can disrupt fat cell function and insulin sensitivity, both key pillars of metabolic regulation.
Dr. Bikman explains how fluoride interferes with fat cell development by inhibiting PPARγ, a key regulator of adipogenesis. While this may initially seem beneficial (fewer fat cells), it actually leads to hypertrophic fat cells that are more insulin resistant and pro-inflammatory. Though human data is limited, epidemiological studies suggest a link between high fluoride exposure and abdominal obesity.
Fluoride’s impact extends to insulin resistance and pancreatic function. Rodent studies show impaired glucose tolerance and reduced insulin production following fluoride exposure. Mechanistically, this is due to oxidative stress damaging mitochondria in beta cells, impairing both insulin release and glucose uptake. Human studies—though sparse—have shown similar trends in high-fluoride areas with improvements upon fluoride reduction.
Ben also explores fluoride’s effects on mitochondrial function, liver health, brain development, and fertility. Mitochondrial damage in fat and liver cells impairs energy production and fat metabolism, potentially leading to fatty liver disease. In the brain, fluoride may lower IQ and disrupt thyroid function—especially harmful during development. In fertility, fluoride is linked to lower sperm count and hormone disruption in animal models. Dr. Bikman concludes by recommending avoiding fluoride in drinking water while acknowledging its limited role in dental care.
Show Notes/References:
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How Fat Hormones Affect Appetite, Inflammation, and Heart Health
28 april 2025 · 29 min
In this Metabolic Classroom lecture, Dr. Ben Bikman explores the critical yet often overlooked role of fat tissue as an endocrine organ, not just a passive energy storage site. Lees meer
Fat secretes dozens of bioactive hormones, collectively called adipokines, that influence everything from appetite and insulin sensitivity to inflammation and cardiovascular risk. He focuses primarily on leptin, adiponectin, and PAI-1 (plasminogen activator inhibitor-1), detailing how each one affects whole-body metabolism and health.
Leptin, produced by fat cells, signals the brain about the body’s energy stores, affecting long-term appetite and fertility more than immediate satiety. Paradoxically, individuals with obesity often have high leptin levels but suffer from leptin resistance, leading to persistent hunger and metabolic dysfunction. In contrast, adiponectin levels decrease as fat mass increases. Adiponectin plays a powerful protective role by enhancing insulin sensitivity, reducing inflammation, and promoting fat metabolism, making it a key marker of good metabolic health.
Ben also highlights PAI-1, a lesser-known adipokine secreted mainly by visceral fat, which inhibits the breakdown of blood clots, thereby raising cardiovascular disease risk. He further discusses other adipokines such as resistin, TNF-alpha, and angiotensinogen, which link excess fat mass to insulin resistance, inflammation, and hypertension.
Finally, he contrasts subcutaneous fat (more benign) with visceral fat (more harmful) and explains how brown fat offers unique metabolic benefits by promoting thermogenesis and thyroid hormone activation. The location and health of fat tissue matter just as much as its quantity.
Show Notes/References:
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Cortisol & Insulin Resistance: How Cortisol Drives Fat Gain & Carb Cravings
21 april 2025 · 32 min
This week, Dr. Bikman dives deep into the metabolic role of cortisol, the body’s primary glucocorticoid. He explains that while cortisol is essential for survival—mobilizing energy during fasting or stress—chronically elevated levels can wreak metabolic havoc. Lees meer
Cortisol is produced by the adrenal cortex under direction from the hypothalamic-pituitary-adrenal (HPA) axis. Its main role is to ensure energy availability, stimulating glycogen breakdown, muscle catabolism, and fat breakdown in specific depots. However, long-term cortisol elevation, such as in Cushing’s disease, leads to fat redistribution, muscle loss, insulin resistance, and increased risk of type 2 diabetes.
Cortisol’s metabolic effects are driven by its action on glucocorticoid receptors inside cells, activating genes like PEPCK and glucose-6-phosphatase that stimulate gluconeogenesis and increase blood sugar. It also indirectly causes insulin resistance by increasing ceramide accumulation, which interferes with insulin signaling in cells like muscle and fat. This, combined with glucose overproduction and muscle loss (the major glucose sink), creates a perfect metabolic storm: high blood sugar, high insulin, and reduced glucose uptake.
The hormone also affects fat storage patterns. Cortisol enhances fat accumulation in visceral (abdominal) fat while stimulating fat loss in subcutaneous regions like the limbs. It increases fat uptake by upregulating lipoprotein lipase and blocks fat breakdown by suppressing hormone-sensitive lipase, especially in the abdominal region. Yet cortisol alone isn’t enough to cause fat gain—insulin is still required. Ben illustrates this by showing how individuals with untreated type 1 diabetes have high cortisol and high appetite but still lose fat without insulin.
Lastly, cortisol influences the brain’s hunger and reward systems, increasing carbohydrate cravings through neuropeptide Y and dopamine signaling. Chronic stress or medical conditions that elevate cortisol can …
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“Fast” vs. “Slow” Insulin Resistance: The Two Paths Explained
14 april 2025 · 30 min
In this lecture, Dr. Bikman presents a framework for understanding the two primary patterns of insulin resistance onset—what he terms “fast” and “slow” insulin resistance. Lees meer
“Fast” insulin resistance happens quickly and can often be reversed just as rapidly. It’s typically triggered by three major factors: elevated insulin (from frequent carb consumption), stress hormones like cortisol and epinephrine, and inflammation (from infection, injury, or autoimmune activity). These triggers lead to the cellular accumulation of ceramides, which interfere with insulin signaling at the molecular level. The good news, he emphasizes, is that when these triggers are removed, the insulin resistance can often resolve quickly.
“Slow” insulin resistance, on the other hand, develops gradually and is more difficult to reverse. It begins in the fat cell, where prolonged exposure to insulin and excess calories causes hypertrophy—the fat cells get larger. As they grow, they become insulin resistant as a form of self-preservation, but this leads to a damaging cascade: elevated free fatty acids, chronic low-grade inflammation, and disruption of glucose control. Dr. Bikman describes how hypertrophic fat cells become hypoxic, triggering inflammation and impairing surrounding tissues.
Unlike the fast form, slow insulin resistance is rooted in long-term lifestyle habits and takes time to correct. The standard advice to “just cut calories” fails to address the core issue—chronically high insulin. Instead, Ben recommends that people first focus on lowering insulin through carbohydrate restriction, which naturally curbs hunger, boosts energy expenditure, and allows fat cells to shrink in a sustainable way.
He concludes that understanding whether your insulin resistance is fast or slow in origin can help shape more effective interventions. With better insight into the mechanisms—from ceramides to fat cell hypertrophy—comes better, more targeted strategies to improve metabolic health.
Show Notes…
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Cold Therapy & Metabolism, Metabolic Health Benefits of Ice Baths and Shivering
28 maart 2025 · 32 min
During this week’s Metabolic Classroom lecture, Ben explores the metabolic power of cold therapy, explaining how brief, controlled exposure to cold can significantly enhance metabolic function. Lees meer
He starts with a deep dive into brown adipose tissue (BAT), which is rich in mitochondria and burns calories to generate heat. Cold exposure activates BAT through norepinephrine, leading to mitochondrial uncoupling and energy expenditure without producing ATP. Interestingly, even white fat can be transformed into metabolically active “beige” fat, increasing thermogenesis.
Dr. Bikman then moves into how shivering muscle activity contributes to thermogenesis. Unlike BAT, muscle contraction generates heat while performing work. Shivering triggers glucose uptake, improves insulin sensitivity, and releases irisin, a hormone that stimulates thermogenic activity in fat tissue. He also discusses AMPK activation, which plays a key role in facilitating this glucose-burning process.
The lecture then highlights a series of hormones influenced by cold, including FGF21 and adiponectin, which boost fat oxidation, enhance insulin sensitivity, and promote mitochondrial biogenesis. Ben reflects on the broader role of the autonomic nervous system, emphasizing how cold therapy improves both sympathetic and parasympathetic function, promoting nervous system flexibility and resilience.
Dr. Bikman wraps up by comparing cold exposure methods—from face immersion and cold showers to cryotherapy and full-body ice baths. He strongly endorses full-body cold water immersion as the most effective strategy, especially when shivering occurs post-immersion. His personal recommendation is the Morozko Forge ice bath (he has no vested interest in this company), citing its sustained metabolic impact and practical benefit. He closes by urging viewers to consider cold therapy as a scientifically grounded tool to support overall metabolic health.
Show Notes/References:
For complete show notes and references, …
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Seed Oils and Insulin Resistance: What the Science Really Says
24 maart 2025 · 29 min
During this week’s Metabolic Classroom lecture, Dr. Ben Bikman explores the connection between seed oils—specifically linoleic acid—and insulin resistance, a growing area of interest and controversy in the metabolic health world. Lees meer
Ben begins by detailing the historical rise of seed oils like soybean, corn, sunflower, and canola oil in the human diet. Once used for industrial purposes, they have now become the most common source of dietary fat, with soybean oil consumption increasing from zero to over 20 pounds per person per year in the U.S.. This rise coincides with a global increase in insulin resistance, prompting the question: Are seed oils to blame?
Dr. Bikman focuses on linoleic acid, the primary omega-6 polyunsaturated fat in seed oils, and differentiates between the fat itself and its oxidation products, such as 4-HNE and 13-HODE. He cites cell culture studies showing that unoxidized linoleic acid doesn’t impair insulin signaling, but its peroxidation products dramatically compromise insulin receptor function and glucose transport. Animal studies further support this by showing that diets high in linoleic acid lead to insulin resistance, obesity, and elevated inflammatory markers, while animals consuming fats like coconut oil fare much better.
However, when it comes to human studies, the picture becomes more complex. Some clinical trials suggest that diets high in polyunsaturated fats can improve insulin sensitivity—but these diets are almost always high in carbohydrates, and rarely test seed oils in a low-carb context. Dr. Bikman proposes a unifying theory: saturated fats may be more problematic when consumed alongside carbohydrates, because insulin shunts them into ceramide biosynthesis, a direct driver of insulin resistance. Linoleic acid, on the other hand, becomes dangerous when it undergoes peroxidation, especially in high oxidative stress environments or when used in cooking.
Ben concludes that context matters. Linoleic acid is present in all natu…
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Fat Metabolism Deep Dive: Saturated, Mono, and Poly Fats Explained
13 maart 2025 · 36 min
(📢 NOTE: We apologize for the sound glitch starting at 2 minutes. Dr. Bikman’s lectures are recorded LIVE, and our production team didn’t want to interrupt him. 🙂 ) Lees meer
Dr. Ben Bikman’s Metabolic Classroom lecture this week explores fat metabolism and the differences between saturated, monounsaturated, and polyunsaturated fats. He begins by explaining that fat is more than just stored energy—it serves as fuel, structure, and biochemical signaling molecules. He categorizes fats based on saturation state, detailing how each type influences metabolism and health outcomes. Saturated fats (found in butter, coconut oil, and animal fat) are stable and non-reactive, making them efficient energy sources. Monounsaturated fats (found in olive oil and avocados) are slightly more flexible and commonly stored in fat cells. Polyunsaturated fats (PUFAs), such as omega-3 and omega-6 fats, play an important role in cell signaling but are highly prone to peroxidation, leading to inflammation and oxidative stress—especially when consumed from refined seed oils like soybean and corn oil.
Dr. Bikman then discusses how the body metabolizes and stores different fats. Long-chain saturated fats can be stored or burned for energy, while medium- and short-chain saturated fats (found in coconut oil and dairy) bypass traditional fat storage pathways and are rapidly burned for energy, often increasing ketone production. Monounsaturated fats (like oleic acid from olive oil) are the most abundant in human fat cells, showing the body's preference for this fat type. However, PUFAs, particularly linoleic acid from seed oils, are problematic because they are prone to peroxidation, contributing to inflammation and metabolic dysfunction.
Ben highlights research showing that high-carbohydrate diets increase the body's internal production of saturated fat, meaning even if someone avoids saturated fats in their diet, their liver will still create them from excess carbohydrates. He also explains that PUFAs, …
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Could We Use GLP-1 Drugs like Ozempic & Mounjaro Better? A Smarter Weight Loss Strategy
6 maart 2025 · 25 min
In this Metabolic Classroom lecture, Dr. Bikman explores GLP-1 receptor agonists (such as Ozempic and Mounjaro) and how to use them more effectively. Lees meer
Ben first explains how GLP-1 is naturally produced in the gut and helps regulate glucagon suppression, slows gastric emptying, and promotes satiety. However, he highlights research showing that individuals with obesity have a blunted GLP-1 response to carbohydrates, which may contribute to overeating. He suggests that GLP-1 drugs could be used more strategically—not just for general weight loss, but specifically to control carbohydrate cravings.
While these drugs can promote rapid weight loss, they can also come with serious trade-offs, including mental health risks (depression, anxiety, and suicidal thoughts), lean mass loss (up to 40% of weight lost), diminishing effects over time, and digestive complications such as gastroparesis (stomach paralysis). He critiques the current high-dose, long-term approach to these medications, arguing that most people are not using them strategically and eventually regain lost weight—primarily as fat.
Dr. Bikman proposes a better approach to using GLP-1 drugs that focuses on low-dose, short-term usage to help control carbohydrate cravings, rather than suppressing appetite completely.
His four-step plan includes: (1) starting at the lowest effective dose, (2) engaging in resistance training to preserve muscle mass, (3) adopting a low-carb, high-protein diet, and (4) cycling off the drug after 3-6 months to assess whether cravings remain under control. He also discusses newer GLP-1/GIP dual agonists like Tirzepatide, which may be even more effective but still require careful usage.
In closing, Ben emphasizes that GLP-1 drugs should be a tool, not a crutch.
The ultimate goal should be to regain control over eating habits, build long-term dietary discipline, and use the drug only when needed. He encourages those considering these medications to work closely with their healthcare p…
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Natural Ways to Boost GLP-1
28 februari 2025 · 26 min
For this week’s Metabolic Classroom lecture, Dr. Bikman focuses on natural ways to boost GLP-1 (Glucagon-Like Peptide-1), a powerful gut hormone involved in appetite control, blood sugar regulation, and metabolic health. Lees meer
Ben begins by explaining that GLP-1 is secreted in response to food intake, influencing glucagon suppression, slowing gastric emptying, and activating satiety centers in the brain. However, research shows that individuals with obesity tend to have a blunted GLP-1 response, particularly after consuming carbohydrates. This means that people with obesity may not experience the same level of fullness and appetite regulation, which can contribute to overeating.
Dr. Bikman then discusses concerns with GLP-1 receptor agonist medications, such as Ozempic and Wegovy. While they effectively promote weight loss, they also come with significant downsides, including loss of lean mass (up to 40% of total weight lost), increased mental health risks (depression, anxiety, and suicidal thoughts), and a return of sweet cravings over time. Additionally, 70% of people discontinue these drugs within two years, often regaining weight—primarily as fat—due to muscle loss during treatment.
He then presents natural methods to enhance GLP-1 production without drugs. His lab at BYU found that Yerba Mate significantly increases GLP-1 by 40-50%, likely due to its ferulic acid content and bitter taste receptors that also reduce sweet cravings. Allulose, a rare sugar, has also been shown to stimulate GLP-1 and improve glucose control, even in individuals with type 1 diabetes. Other natural boosters include a low-carbohydrate, protein-rich diet, which triples GLP-1 levels compared to a low-fat diet, collagen peptides, which enhance GLP-1 secretion and insulin sensitivity, and quality sleep, since poor sleep is linked to impaired GLP-1 signaling and increased hunger.
Dr. Bikman concludes by emphasizing that leveraging diet and lifestyle changes is the most effective and sustaina…
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How Bilirubin Affects Fat Burning, Inflammation & Metabolic Health
24 februari 2025 · 24 min
Dr. Bikman’s lecture this week explores the metabolic roles of bilirubin, a molecule typically associated with liver disease and jaundice but now emerging as a key player in metabolism, oxidative stress, and fat regulation. Lees meer
Bilirubin is produced from the breakdown of red blood cells and is transported to the liver, where it undergoes conjugation to become water-soluble and is then excreted into bile.
While historically viewed as a waste product, recent research suggests that bilirubin plays a significant role in protecting against oxidative stress and inflammation, and may even contribute to metabolic flexibility and fat metabolism.
One of bilirubin’s most fascinating properties is its potent antioxidant effect. It neutralizes reactive oxygen species (ROS), helping to reduce oxidative stress—a key driver of chronic diseases, including insulin resistance, cardiovascular disease, and neurodegeneration. Bilirubin also acts as an anti-inflammatory agent, inhibiting key inflammatory pathways such as NF-kappa B, which is involved in obesity-related inflammation. Interestingly, individuals with Gilbert Syndrome, a genetic condition that causes mildly elevated bilirubin levels, have been shown to have a significantly lower risk of cardiovascular disease.
Beyond its antioxidant and anti-inflammatory roles, bilirubin also influences fat metabolism. Studies suggest that bilirubin enhances mitochondrial function and thermogenesis, particularly in brown and beige fat, by increasing UCP-1 (uncoupling protein 1) expression, which helps the body burn fat more efficiently.
Ben concludes by discussing ways to naturally increase bilirubin levels. Since bilirubin is excreted in bile, diets higher in fat may enhance enterohepatic recycling, allowing more bilirubin to re-enter circulation and exert its beneficial effects. While excessive bilirubin can be toxic, modestly elevated levels, as seen in Gilbert Syndrome, appear to provide metabolic advantages.
This growing body of resea…
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Peptides & Metabolism - Fat Loss, Muscle Growth, and Hormones Explained
13 februari 2025 · 23 min
Dr. Bikman’s Metabolic Classroom lecture this week explores peptides and their effects on metabolism, fat loss, muscle growth, and overall health. Lees meer
Ben begins by defining peptides as short chains of amino acids that act as signaling molecules in the body. While some peptides occur naturally, others are synthetically developed for therapeutic purposes. He explains that peptides are gaining popularity in fitness, anti-aging, and metabolic health, influencing fat loss, muscle repair, insulin sensitivity, and even skin regeneration. He also introduces collagen peptides, highlighting their unexpected metabolic benefits, including their influence on GLP-1 and gut microbiome health.
Ben then categorizes peptides based on their primary functions. For fat loss, peptides like CJC-1295 and Tesamorelin work by stimulating growth hormone and IGF-1, promoting fat breakdown while preserving muscle mass. Another peptide, Melanotan-2, originally known for increasing melanin, has been found to suppress appetite by affecting the melanocortin system. He also discusses peptides like Ipamorelin, which help enhance muscle recovery and growth by selectively increasing growth hormone secretion without affecting other pituitary hormones.
In the anti-aging and skin health category, Thymosin Beta-4 stands out for its ability to enhance wound healing and tissue repair. Dr. Bikman also highlights the unexpected metabolic role of collagen peptides, explaining how they can increase GLP-1 levels, improve insulin sensitivity, and even activate AMPK, a crucial metabolic regulator involved in fat breakdown and cellular repair.
Finally, he touches on how peptides are administered—most commonly via subcutaneous injections, though some peptides can be absorbed sublingually or applied topically.
He cautions that not all peptides are created equal, warning against low-quality or counterfeit products. Ben emphasizes the need for high-quality sourcing and careful monitoring, as some peptides affect horm…
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Acne & Insulin Resistance: Why Your Diet Matters More Than You Think
4 februari 2025 · 25 min
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In this week’s lecture, Dr. Bikman explores the metabolic origins of acne, challenging the conventional view that acne is purely a skin issue. While acne is often attributed to excess oil production, clogged pores, bacteria, and inflammation, Ben highlights how metabolic factors—especially insulin—play a significant role.
Insulin directly stimulates sebaceous glands, increasing oil production, and also triggers the release of androgens (such as testosterone), further worsening acne. Additionally, insulin resistance promotes inflammation and hyperkeratinization, both of which contribute to acne severity.
He explains that puberty naturally induces a state of insulin resistance, which helps drive growth and development. However, when combined with modern high-carbohydrate diets, this physiological insulin resistance can be exacerbated, leading to severe acne in some teenagers. He also discusses the role of insulin-like growth factor 1 (IGF-1), which is stimulated by high insulin levels and is known to increase sebum production and accelerate skin cell turnover, worsening acne conditions.
Ben then presents compelling research on metabolic-based acne treatments, including the use of metformin, an insulin-sensitizing drug that has shown promise in reducing acne, particularly in conditions like PCOS. He also highlights dietary interventions, particularly low-carbohydrate and ketogenic diets, which have been found to significantly reduce acne severity by lowering insulin and improving skin health. One study found that young women on a ketogenic diet saw a 33% reduction in acne severity and a 50% improvement in skin quality within just 45 days.
He concludes that acne is not just a cosmetic issue but a metabolic condition that can be managed through dietary and lifestyle changes. While conventional acne treatments address symptoms, tackling insulin resistance through proper nutrition provides a long-term so…
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How ADHD Medications Affect Fat Burning, Insulin & Brain Health
31 januari 2025 · 28 min
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In this week’s episode of the Metabolic Classroom lectures, Dr. Ben Bikman explores the metabolic impact of ADHD medications and whether ADHD itself has metabolic roots.
Ben explains how stimulant medications (like Adderall and Ritalin) primarily work by increasing dopamine and norepinephrine, enhancing focus but also suppressing appetite and stimulating fat breakdown. This can lead to weight loss but may also contribute to binge eating episodes when the medication wears off. Non-stimulant ADHD medications (like Atomoxetine and Guanfacine) affect metabolism in different ways—some subtly improve insulin sensitivity, while others reduce fat breakdown, potentially leading to weight gain.
Beyond medication, Dr. Bikman discusses ADHD as a possible metabolic disorder. Studies show that individuals with ADHD often have reduced glucose metabolism in the prefrontal cortex, the brain region responsible for attention and impulse control. He highlights research linking chronic sugar consumption to dopamine imbalances and brain energy instability, suggesting that modern dietary habits may be worsening ADHD symptoms.
One potential solution? Ketones as an alternative brain fuel. Dr. Bikman shares research on the ketogenic diet as a therapy for ADHD, similar to its use in epilepsy and Alzheimer’s disease. By shifting the brain’s energy source from glucose to ketones, individuals may experience more stable brain function and improved focus. He concludes that ADHD may not just be a neurological condition—it could also be a metabolic issue, and targeting brain metabolism may offer new treatment possibilities.
Show Notes/References:
For complete show notes and references referred to in this episode, we invite you to become a Ben Bikman Insider subscriber. As a subscriber, you’ll enjoy real-time, livestream Metabolic Classroom access which includes live Q&A with Ben, ad-free Metabolic Classroom Podcast episodes, show…
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GLP-1 Medications Explained: Benefits, Risks, and What You Need to Know
23 januari 2025 · 31 min
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Dr. Bikman’s Metabolic Classroom lecture this week explores the physiological role and implications of GLP-1 (glucagon-like peptide-1) and the GLP-1 receptor agonist drugs used for type 2 diabetes management and weight loss.
Ben begins by explaining GLP-1 as a hormone produced in the intestines in response to food. It plays a vital role in slowing gastric emptying, suppressing glucagon, and regulating appetite by signaling fullness to the brain. These mechanisms contribute to its effects on stabilizing blood sugar and enhancing insulin sensitivity.
He then delves into GLP-1 receptor agonists, drugs that mimic GLP-1’s actions, including semaglutide, liraglutide, and others marketed under brand names like Ozempic and Wegovy. These medications have gained fame for their weight loss efficacy, often leading to reductions in body weight by 15% or more.
However, Ben emphasizes that weight loss involves not only fat but also lean mass, raising concerns about muscle loss and metabolic health. Additionally, he discusses the medications’ side effects, including depression, anhedonia, and potential long-term complications like fat cell development and gallstones.
The lecture also addresses the diminishing returns of these drugs over time, noting that their efficacy in reducing cravings and improving eating control tends to wane after prolonged use. Dr. Bikman highlights that education on healthy eating and resistance training is crucial for maintaining health outcomes, as reliance solely on medication can lead to unintended consequences, such as increased fat regain after discontinuation.
Ben concludes by stressing the importance of combining these drugs with a low-carb diet and resistance training to minimize muscle loss and optimize long-term outcomes. He encourages using the lowest effective dose and underscores the need for lifestyle changes to complement pharmacological interventions.
Show Notes/Refere…
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Metabolic Surgeries: How Bariatric Procedures Work, Their Benefits and Risks
23 januari 2025 · 32 min
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This week, Dr. Bikman’s lecture focuses on metabolic surgeries (also called bariatric surgeries), their mechanisms, and their impacts on weight loss and metabolic health.
Ben begins by explaining the qualifications for these surgeries, which often serve as a last resort for individuals with severe obesity or comorbidities like type 2 diabetes. Common qualifications include a BMI of 40 or higher, or lower BMIs with conditions like hypertension or diabetes. These surgeries aim to address obesity and related health complications when traditional methods, like diet and exercise, fail.
Dr. Bikman describes four primary types of metabolic surgeries: Roux-en-Y gastric bypass, sleeve gastrectomy, biliopancreatic diversion with duodenal switch, and adjustable gastric banding. He explains their procedures, including how they alter digestion, absorption, and stomach size, leading to weight loss through restriction and malabsorption. These surgeries also bring significant hormonal changes, such as increases in GLP-1 and reductions in ghrelin (hunger hormone), contributing to satiety and metabolic improvements.
While these surgeries can dramatically improve insulin sensitivity, reduce glucagon levels, and improve conditions like type 2 diabetes, they come with risks. Nutrient deficiencies, surgical complications, dumping syndrome, and weight regain are significant concerns. Younger patients are particularly prone to weight regain, especially if they don’t adopt sustainable eating habits. Dr. Bikman emphasizes the need for education on managing macronutrients and maintaining long-term behavioral changes.
Ben concludes that metabolic surgeries can be a valuable tool for those with severe obesity and related complications. However, he warns of their limitations and advocates for coupling them with lifestyle changes to optimize long-term success.
Show Notes/References:
For complete show notes and references refe…
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How Autophagy Protects Your Cells and Boosts Longevity
7 januari 2025 · 29 min
In this Metabolic Classroom lecture, Dr. Bikman delves into the fascinating metabolic process of autophagy, the body’s natural recycling system that maintains cellular health by breaking down and reusing damaged components. Lees meer
Ben explains how autophagy is essential for replacing malfunctioning organelles and proteins, thereby preventing diseases such as neurodegenerative disorders, cardiovascular conditions, and even some cancers. Autophagy also plays a crucial role in energy production during nutrient deprivation, highlighting its importance for survival and optimal cellular function.
Dr. Bikman also discusses the relationship between autophagy and metabolic health, emphasizing how impaired autophagic activity in adipose tissue contributes to inflammation and insulin resistance in obesity. He explores its role in longevity, citing evidence that enhanced autophagy can improve health span and lifespan in animal studies.
Additionally, Ben examines how factors like insulin, nutrient availability, and diets such as ketogenic diets regulate autophagy, with ketones having a direct effect on boosting this process.
Throughout the lecture, Dr. Bikman underscores the need for balance in autophagy, warning against excessive or constant activation, whether through pharmacological means like rapamycin or mismanaged dietary habits, advocating instead for natural regulation via nutrient signals.
Show Notes/References:
For complete show notes and references referred to in this episode, we invite you to become a Ben Bikman Insider subscriber. As a subscriber, you’ll enjoy real-time, livestream Metabolic Classroom access which includes live Q&A with Ben, ad-free Metabolic Classroom Podcast episodes, show notes and references, Ben’s Research Reviews Podcast, and a searchable archive that includes all Metabolic Classroom episodes and Research Reviews. Learn more about becoming an Insider on our website: https://www.benbikman.com
Ben’s favorite yerba maté and fiber supplement: htt…
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The Metabolic Consequences of Poor Sleep
31 december 2024 · 30 min
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Dr. Benjamin Bikman delves into the profound relationship between sleep and metabolic health, emphasizing the critical role sleep plays in maintaining insulin sensitivity and overall metabolic function.
Ben explains that deep sleep is a restorative phase during which the body repairs cells, regulates hormones, and improves insulin sensitivity. Poor sleep, however, disrupts these vital processes, leading to hormonal imbalances that elevate cortisol levels and reduce melatonin production.
Elevated cortisol, a stress hormone, promotes gluconeogenesis and insulin resistance, while insufficient melatonin—a hormone essential for regulating sleep—negatively impacts insulin sensitivity and glucose metabolism. This disruption creates a cycle of metabolic dysfunction, increasing the risk of conditions like type 2 diabetes and obesity.
Dr. Bikman highlights actionable strategies to improve both sleep and metabolic health. He stresses the importance of avoiding high-glycemic meals before bed, minimizing exposure to blue light from screens, and maintaining consistent sleep schedules.
He also discusses how ketones, especially in athletes after intense exercise, have been shown to improve sleep efficiency and REM sleep duration.
For individuals struggling with sleep, Dr. Bikman explores the potential benefits of melatonin supplementation and exogenous ketones, underscoring the need for personalized approaches. By addressing evening habits and understanding the hormonal interplay between sleep and metabolism, individuals can take meaningful steps to enhance both sleep quality and metabolic health.
This episode of The Metabolic Classroom provides valuable insights into how optimizing sleep can significantly improve overall well-being.
Timestamps:
(00:45) – Introduction to Sleep and Metabolic Health
(01:22) – Why Sleep is Essential for Insulin Sensitivity
(04:20) – How Cortisol Disrupts Sleep a…
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The Unexpected Link Between Salt Regulating Hormones and Metabolic Health
19 december 2024 · 35 min
We sincerely apologize! During the livestream recording, we experienced some technical difficulties between 07:15 to 08:50. Thanks for your patience and understanding. Lees meer
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During The Metabolic Classroom lecture this week, Dr. Bikman dives into the intricate relationship between salt- and water-regulating hormones and metabolic health.
Starting with a discussion of the renin-angiotensin-aldosterone system (RAAS), he explains how hormones like angiotensin II, aldosterone, and antidiuretic hormone (ADH) are not only critical for regulating blood pressure but also significantly impact insulin sensitivity and fat cell dynamics. Angiotensin II promotes insulin resistance by increasing ceramide production, which blocks insulin signaling, while also enlarging fat cells and inhibiting their breakdown. Similarly, aldosterone exacerbates insulin resistance by enhancing ceramide levels and promotes both the growth and multiplication of fat cells. ADH complements these effects, particularly by inhibiting fat breakdown through its action on specific receptors.
Ben emphasizes the counterintuitive finding that salt restriction, often prescribed to manage hypertension, can worsen insulin resistance, particularly in individuals with metabolic vulnerabilities. Studies highlight that reducing salt intake leads to increased fasting insulin levels, impaired glucose metabolism, and unfavorable lipid changes, such as reduced HDL cholesterol. Additionally, he warns that dehydration, much like salt restriction, activates these same hormonal pathways, compounding their metabolic effects.
Dr. Bikman concludes with a reminder that interventions aimed at improving blood pressure should consider their broader metabolic implications, particularly for individuals predisposed to insulin resistance.
Show Notes/References:
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Hypertension Medications and Metabolic Health
12 december 2024 · 40 min
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This week in The Metabolic Classroom lecture, Ben focuses on the relationship between hypertension medications and metabolic health, providing a critical examination of their mechanisms and metabolic implications.
He begins by highlighting the role of insulin resistance as a common root cause of both hypertension and metabolic disorders. Ben explains that while hypertension medications such as diuretics, beta blockers, ACE inhibitors, ARBs, and calcium channel blockers are often prescribed, they each have unique effects on insulin sensitivity and glucose metabolism, which can either mitigate or exacerbate metabolic dysfunction. Notably, some classes of these medications, like ARBs, may improve insulin sensitivity, while others, like beta blockers and diuretics, can impair it, leading to heightened risks for type 2 diabetes.
Ben underscores the importance of addressing the root causes of hypertension—namely, insulin resistance—through lifestyle interventions like low-carbohydrate diets and fasting, which improve both blood pressure and metabolic health. He emphasizes the need for personalized treatment plans that consider the metabolic side effects of medications, advocating for strategies that tackle insulin resistance as a primary approach to improving overall health.
Show Notes/References:
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Ben’s favorite yerba maté and fiber supplement: https://ufeelgreat.com/usa/en/c/Ins…
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Thyroid Health and Low-Carb Diets: What Lower T3 Really Means
2 december 2024 · 31 min
This week in The Metabolic Classroom, Ben explores the effects of a ketogenic diet on thyroid function, addressing concerns that lower thyroid hormone levels observed during the diet may indicate dysfunction. Lees meer
Dr. Bikman begins by explaining the hypothalamic-pituitary-thyroid (HPT) axis, a regulatory system that controls thyroid hormone production. The thyroid gland produces two primary hormones, T3 (triiodothyronine) and T4 (thyroxine), with T3 being the active form that influences metabolic processes. He emphasizes the concept of negative feedback within the HPT axis, explaining that normal TSH levels generally indicate a well-functioning thyroid, even if T3 levels are lower.
Ben also reviews a commonly cited study that observed decreased T3 levels in individuals following a ketogenic diet. Despite the drop in T3, TSH levels remained normal, suggesting that the thyroid gland was not damaged but rather adapting to reduced metabolic demand. He introduces two key explanations: improved thyroid hormone sensitivity and reduced glucose metabolism. Improved sensitivity means that lower levels of T3 are sufficient to maintain metabolic functions, while reduced glucose consumption on a ketogenic diet lessens the body’s need for thyroid hormone to regulate glucose uptake.
The classroom lecture then delves into the concept of thyroid hormone resistance, a condition linked to metabolic disorders like obesity and type 2 diabetes. Dr. Bikman references studies showing that thyroid resistance is real and measurable, often associated with elevated TSH and thyroid hormones in individuals with metabolic syndrome. He speculates that a ketogenic diet may enhance thyroid sensitivity in these individuals, reducing the need for higher T3 levels.
In conclusion, Dr. Bikman reassures those on a ketogenic diet that lower T3 levels do not necessarily indicate harm. If TSH levels are normal and no symptoms of hypothyroidism are present, the changes may reflect a healthy adaptation to the …
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Hormone Replacement Therapy in Women: Metabolic Benefits and Misunderstood Risks
2 december 2024 · 32 min
In this week’s episode of The Metabolic Classroom, Dr. Bikman delivers a comprehensive lecture on hormone replacement therapy (HRT), focusing on its role in addressing metabolic health challenges faced by women during menopause. Lees meer
The loss of estradiol causes fat to redistribute from healthier storage areas, like the hips and thighs, to the abdominal region, where larger fat cells become more insulin-resistant and pro-inflammatory. This shift contributes to systemic inflammation and elevates the risk of cardiometabolic diseases. Ben explains how HRT, particularly with estradiol, can mitigate these effects by improving insulin sensitivity, reducing inflammation, and promoting healthier fat storage patterns.
He also addresses historical concerns about HRT, including risks of blood clots and cancer. Dr. Bikman explains that oral estrogens may slightly increase clotting risks due to their first-pass metabolism in the liver, but transdermal delivery methods like patches and gels do not carry this same risk. Regarding cancer, he highlights how older studies, such as the Women’s Health Initiative, overstated the connection between HRT and breast cancer, particularly when using estrogen-only therapies. Ben emphasizes the importance of evaluating the absolute risks, which are relatively small.
Beyond its metabolic benefits, HRT also shows promise in protecting against conditions like Alzheimer's disease. Ben discusses studies suggesting that HRT, when started early in menopause, may improve cognitive outcomes, preserve brain volume, and reduce the risk of Alzheimer’s, particularly in women with the APOE4 gene. These findings suggest that timely HRT may support brain health alongside its other benefits.
In conclusion, Ben underscores the substantial metabolic and overall health changes women face during menopause and the potential for HRT to improve quality of life, metabolic health, and long-term outcomes. He stresses the importance of individualized HRT plans tailored to…
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Nicotine and Insulin Resistance: What You Should Understand About the Connection
20 november 2024 · 28 min
During Dr. Ben Bikman’s latest episode of The Metabolic Classroom lectures, Ben explores the metabolic effects of nicotine, emphasizing its influence beyond its addictive properties and its association with lung health and its connection to insulin resistance. Lees meer
Nicotine, a naturally occurring alkaloid found primarily in tobacco plants, is widely consumed through various products such as cigarettes, cigars, chewing tobacco, e-cigarettes, and nicotine replacement therapies like gums and patches. While most discussions on nicotine focus on its addictive qualities and respiratory impact, Ben highlights its significant effects on metabolism, including interactions with fat cells, insulin, and the nervous system.
Nicotine primarily stimulates the sympathetic nervous system by increasing the release of catecholamines like epinephrine and norepinephrine. These stress hormones activate the “fight or flight” response, resulting in elevated heart rate, blood pressure, and metabolic rate.
Nicotine’s ability to increase lipolysis, the breakdown of stored fat into free fatty acids, often leads to temporary weight loss. However, its chronic use disrupts fat metabolism by impairing mitochondrial fat oxidation, leading to fat cell hypertrophy (enlargement). This enlargement, particularly in visceral fat, contributes to insulin resistance, fatty liver disease, and systemic inflammation.
Ben also examines nicotine’s role in insulin resistance through its activation of specific cellular pathways. Nicotine increases ceramide production, which disrupts insulin signaling by deactivating key proteins essential for glucose uptake. Additionally, nicotine activates receptors like RAGE (Receptor for Advanced Glycation End Products) and TLR4 (Toll-like Receptor 4), which further drive ceramide production and inflammation. This creates a self-perpetuating cycle that exacerbates metabolic dysfunction and promotes chronic insulin resistance.
The classroom lecture highlights the paradoxical na…
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Oxalates and Metabolic Health: How and Why Antinutrients From Plants Can Be Harmful
14 november 2024 · 35 min
For The Metabolic Classroom lecture this week, Dr. Bikman explores the often-overlooked effects of oxalates on human health, with a focus on their impact on metabolic, kidney, cardiovascular, gut, and joint health. Lees meer
Oxalates are natural compounds found in various plants, including leafy greens like spinach and kale, as well as certain nuts, seeds, grains, and legumes. They serve as a defense mechanism for plants against herbivores, as their high concentrations can cause irritation and reduce nutrient absorption. While often thought of as harmless, oxalates can act as “antinutrients” by binding to essential minerals such as calcium, magnesium, and iron, limiting their bioavailability and potentially leading to deficiencies.
Oxalates form crystals with calcium, creating a compound known as calcium oxalate. When these crystals accumulate in the body, they can contribute to kidney stones—a problem that affects many people. Ben explains that calcium oxalate crystals make up about 80% of all kidney stones, underscoring the connection between oxalate consumption and kidney health. Individuals prone to kidney stones, particularly those consuming high-oxalate diets or taking high doses of vitamin C (which the body can convert to oxalates), may face a heightened risk.
To mitigate oxalate-related health risks, Dr. Bikman suggests practical strategies, including reducing high-oxalate foods, ensuring adequate calcium intake to bind oxalates in the gut, staying hydrated to aid in oxalate excretion, and consuming fermented foods or probiotic supplements to support a healthy gut microbiome. He also highlights the importance of a balanced approach to vitamin C supplementation, as excessive intake may increase oxalate production in the body.
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Microplastics & Metabolic Health: The Surprising Connection with Dr. Ben Bikman
7 november 2024 · 34 min
During this week’s episode of The Metabolic Classroom, Dr. Bikman discusses the impact of microplastics on metabolic health, focusing on their effects on fat cells, insulin resistance, and blood vessel health. Lees meer
Microplastics—tiny plastic particles under five millimeters—are now ubiquitous in our environment, entering the body through food, water, air, and skin products. Their pervasiveness poses serious concerns due to their accumulation in human tissues and the release of harmful chemicals like BPA (bisphenol A) and phthalates, which disrupt normal hormone functions and lead to various health issues.
Ben details how microplastics affect fat cell biology, particularly through BPA and phthalates, which mimic hormones like estrogen and testosterone, causing increased fat storage and even promoting fat cell growth and multiplication (hyperplasia and hypertrophy). This hormone disruption and fat cell expansion result in greater fat storage and elevated inflammation, contributing to insulin resistance, obesity, and chronic diseases like type 2 diabetes.
Professor Bikman also explores how microplastics affect vascular health, citing studies that show microplastic particles in atherosclerotic plaques. These particles attract macrophages that attempt to remove the microplastics but instead form “foam cells,” which contribute to plaque formation and heighten the risk of cardiovascular disease.
Ben concludes with recommendations to limit microplastic exposure, such as avoiding plastic containers for long-term water storage and choosing BPA-free, phthalate-free products, especially for food and beverages.
visit: https://www.insuliniq.com
Ben’s favorite yerba maté and fiber supplement: https://ufeelgreat.com/usa/en/c/InsulinIQ
Ben’s favorite meal-replacement shake: https://gethlth.com (discount: BEN10)
Ben’s favorite electrolytes (and more): https://redmond.life (discount: BEN15)
Ben’s favorite allulose source: https://rxsugar.com (discount: BEN20)
Ben’s favorite heal…
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Using a Continuous Glucose Monitor (CGM) to Help You Improve Insulin Sensitivity
31 oktober 2024 · 23 min
This week’s episode of The Metabolic Classroom focuses on the potential of continuous glucose monitors (CGMs) as a valuable tool not only for individuals with diabetes but also for anyone interested in gaining deeper insights into their metabolic health. Lees meer
CGMs, which measure glucose levels continuously by detecting interstitial glucose, provide real-time feedback on how diet, exercise, stress, and sleep impact blood sugar, making them useful beyond their traditional application for managing diabetes.
Dr. Bikman highlights studies that showcase the variability in individual glucose responses to the same foods, which can be attributed to factors like gut microbiome composition. Ben cites a prominent 2015 study from Israel that revealed individuals’ glucose reactions to identical foods varied widely, showing the personal nature of glycemic responses and the role of CGMs in helping people manage their blood glucose variability.
Another study, from Stanford University, further illustrates how CGMs can reveal “hidden” glucose spikes, leading people to make more informed dietary and lifestyle decisions.
Dr. Bikman touches on the idea that, beyond personal use, CGMs have clinical benefits as well. Studies from the Scripps Research Institute and the Framingham Heart Study show that CGMs can detect early signs of prediabetes and diabetes in individuals who may otherwise go undiagnosed, providing a valuable tool for early intervention.
While there are critiques about CGMs, including concerns about potential overemphasis on glucose levels, costs, and possible psychological impacts, Dr. Bikman asserts that the advantages—such as improving insulin sensitivity, reducing glycemic variability, and empowering users to make healthier choices—outweigh these concerns.
Ben concludes by encouraging those curious about their metabolic health to consider CGMs as a practical tool for self-monitoring, with potential for significant long-term health benefits.
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Glucosamine and Metabolic Health: What You Need to Know with Dr. Ben Bikman
24 oktober 2024 · 29 min
In the recording of today’s livestream episode of The Metabolic Classroom, Dr. Ben Bikman explores glucosamine’s impact on both joint and metabolic health. Lees meer
Glucosamine, commonly used as a supplement to alleviate joint pain, especially in osteoarthritis, is an amino sugar that plays a role in cartilage formation. However, its effectiveness in improving joint health is debated, with some studies suggesting modest benefits, while others find it no better than a placebo.
Dr. Bikman shifts the focus to glucosamine’s metabolic effects, explaining that due to its structural similarity to glucose, glucosamine can enter cells via glucose transporters, particularly GLUT1 and GLUT2. Once inside cells, glucosamine can contribute to the production of UDP-GlcNAc, a molecule that interferes with insulin signaling, potentially leading to insulin resistance and elevated blood glucose levels. This effect is particularly concerning for individuals with underlying insulin resistance or a family history of type 2 diabetes.
Ben refers to several studies, with most finding that glucosamine supplementation can impair insulin sensitivity and raise blood glucose levels in people with metabolic issues, while having little to no effect in metabolically healthy individuals.
Dr. Bikman concludes by advising that glucosamine may not be worth the risk for people with metabolic health concerns, while for those who are metabolically healthy, it is likely safe to use. However, he stresses the importance of monitoring blood glucose levels if taking glucosamine and suggests other strategies for improving joint health, such as improving insulin sensitivity and reducing uric acid levels.
Ben’s favorite meal-replacement shake: https://gethlth.com (discount: BEN10)
Ben’s favorite electrolytes (and more): https://redmond.life (discount: BEN15)
Ben’s favorite allulose source: https://rxsugar.com (discount: BEN20)
Ben’s favorite health check-up for women: https://choosejoi.co/drben15 (discount: DRBEN…
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Hyperglycemia Explained: The Consequences of High Blood Sugar and Why It Matters with Dr. Ben Bikman
20 oktober 2024 · 36 min
In this episode of The Metabolic Classroom, Dr. Ben Bikman explores the metabolic implications of hyperglycemia, the condition of elevated blood glucose levels. He focuses on both the chronic effects, like those seen in diabetes, and the acute effects of glucose spikes, even from short-term dietary indulgences. Hyperglycemia, while often linked to insulin resistance and diabetes, also has a range of other negative consequences that can manifest even with occasional spikes. Lees meer
One of the key points Dr. Bikman discusses is the relationship between hyperglycemia and insulin. As glucose levels rise, insulin levels rise as well, which can lead to insulin resistance over time, forming a vicious cycle. He highlights studies showing that even a short-term increase in carbohydrate intake can significantly raise fasting insulin levels and triglycerides. These changes have direct consequences on metabolic health, including an increased risk for cardiovascular disease.
Dr. Bikman also explains how hyperglycemia leads to oxidative stress, causing the overproduction of reactive oxygen species (ROS). This oxidative stress can damage proteins, lipids, and even DNA within cells. It also contributes to the formation of advanced glycation end products (AGEs), which are harmful compounds formed when glucose binds irreversibly to proteins, fats, or DNA. These AGEs are linked to various diseases such as retinopathy, kidney disease, and atherosclerosis.
The lecture further explores how hyperglycemia damages the endothelium (the inner lining of blood vessels) and degrades the glycocalyx, a protective gel-like layer on the endothelium. This damage increases the risk of cardiovascular disease by making blood vessels more prone to atherosclerosis. Additionally, high blood glucose levels lead to the glycation and oxidation of LDL cholesterol, making it more dangerous and likely to contribute to plaque formation in arteries.
Ben’s favorite meal-replacement shake: https://gethlth.com (discount…
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The Links Between Antidepressants, Metabolic Health, and Insulin Resistance with Dr. Ben Bikman
3 oktober 2024 · 31 min
This week, during the Metabolic Classroom lecture, Dr. Ben Bikman examines the metabolic consequences of medications used for mental health, such as antidepressants and anti-anxiety drugs. Ben highlights the close connection between mental health disorders like depression and anxiety with metabolic issues, particularly insulin resistance and type 2 diabetes. These medications, while effective for managing mental health symptoms, often lead to metabolic side effects such as weight gain and insulin resistance, complicating the relationship between mental and metabolic health. Lees meer
Dr. Bikman reviews key neurotransmitters—serotonin, dopamine, and norepinephrine—that influence both mental and metabolic functions. Serotonin helps regulate mood and appetite but can promote fat accumulation and inhibit fat breakdown. Dopamine is associated with pleasure and reward systems but also plays a role in regulating energy expenditure and fat metabolism. Norepinephrine, closely related to adrenaline, is involved in the body’s stress response and can stimulate fat breakdown and thermogenesis.
The lecture then shifts to the metabolic effects of common mental health medications, such as SSRIs, tricyclic antidepressants, and antipsychotics. While these drugs can stabilize mood, they are often linked to significant metabolic disturbances, including weight gain, insulin resistance, and cravings for carbohydrate-heavy foods. Ben notes that these medications may exacerbate underlying metabolic issues, potentially worsening the mental health conditions they are meant to treat.
Dr. Bikman concludes by emphasizing the importance of addressing metabolic health when treating mental health disorders. He highlights the role of brain glucose hypometabolism, where insulin resistance in the brain may contribute to anxiety and depression. He suggests that improving metabolic health through approaches like ketogenic diets could potentially enhance mental health outcomes by better nourishing the brain a…
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The Truth About Liposuction and Its Health Impact, with Dr. Ben Bikman
26 september 2024 · 27 min
In this lecture, Dr. Ben Bikman explores liposuction, highlighting its popularity and effects on body fat. While body fat serves important functions like energy storage and hormone regulation, liposuction only removes subcutaneous fat, leaving visceral fat untouched. Dr. Bikman emphasizes that fat cell size, not total fat, is key to metabolic health, and larger fat cells can lead to insulin resistance. Lees meer
Liposuction, though effective for quick fat removal, does not improve metabolic health or insulin sensitivity. Without lifestyle changes, patients often regain fat in different areas. He suggests that liposuction should be seen as a body contouring tool, not a health solution, but it may offer benefits for those with lipedema, improving pain and quality of life.
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Ben’s favorite meal-replacement shake: https://gethlth.com (discount: BEN10)
Ben’s favorite electrolytes (and more): https://redmond.life (discount: BEN15)
Ben’s favorite allulose source: https://rxsugar.com (discount: BEN20)
Ben’s favorite health check-up for women: https://choosejoi.co/drben15 (discount: DRBEN15)
Ben’s favorite health check-up for men: https://blokes.co/drben15 (discount: DRBEN15)
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The Truth About Lactate: It’s Not What You Think | Dr. Ben Bikman
20 september 2024 · 31 min
In this week’s episode of The Metabolic Classroom, Dr. Ben Bikman clarifies misconceptions about lactate metabolism, emphasizing that there is no lactic acid in the human body—only lactate. Lees meer
He explains that lactate is the end product of non-oxidative glycolysis, produced when cells, particularly muscles and red blood cells, require quick ATP energy. Dr. Bikman highlights that lactate production occurs during high-intensity activities where energy demand exceeds the capacity of mitochondria to generate ATP efficiently.
Contrary to popular belief, lactate is not responsible for muscle soreness or fatigue.
Ben delves into the history of lactate research, mentioning key contributors like Otto Meyerhoff, who identified lactate as a product of anaerobic metabolism, and Carl and Gerty Cori, who discovered the Cori cycle. This cycle demonstrates how lactate is recycled by the liver into glucose, which can then be used by muscles for energy. Lactate, once considered a waste product, is now understood to be an essential substrate for gluconeogenesis.
Dr. Bikman introduces George Brooks' lactate shuttle theory, which reveals that lactate is a viable energy source that can be directly utilized by mitochondria for fuel. He explains that this discovery revolutionized the understanding of lactate, showing it can be oxidized within cells for energy production rather than merely being excreted as a waste product.
Dr. Bikman also discusses lactate’s potential in clinical contexts, such as traumatic brain injury (TBI) recovery, where lactate can serve as an alternative energy source for the brain when glucose metabolism is impaired. Moreover, he touches on how lactate influences fat cells, promoting mitochondrial uncoupling and aiding in fat burning, contributing to metabolic health. Ben suggests that continuous lactate monitoring could help identify mitochondrial dysfunction and predict type 2 diabetes risk.
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00:00 - Introduction to Lactate Metabolism…
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Rapamycin and Longevity: What the Research Really Says with Dr. Ben Bikman
12 september 2024 · 32 min
In today’s episode of The Metabolic Classroom, Dr. Ben Bikman delivers a lecture focusing on the drug rapamycin and its impact on longevity. Lees meer
The primary discussion revolves around the role of the protein complex mTOR (mammalian target of rapamycin) in the body's aging process. While rapamycin is often touted as a drug that can inhibit mTOR and thereby promote longevity, Ben emphasizes that much of this belief is based on animal studies and lacks solid human evidence. The mTOR pathway is involved in cell growth and protein synthesis, particularly in muscle tissue, making its inhibition controversial when it comes to aging and muscle maintenance.
Dr. Bikman highlights that some research suggests reducing mTOR activity by lowering protein intake might promote longevity. However, he pointed out that for older populations, higher protein consumption is correlated with reduced mortality, particularly from animal protein sources. This is especially significant when considering muscle mass, which has been consistently linked to longer lifespan. Inhibiting mTOR might impair muscle growth and maintenance, making rapamycin problematic for those aiming to preserve muscle health as they age.
In addition to discussing the potential benefits of rapamycin, Ben underscores its negative side effects, including immune suppression, increased triglycerides (which elevate the risk of heart disease), and the inhibition of muscle protein synthesis. He also raises concerns about the drug’s ability to reduce testosterone levels and hinder reproductive health in both men and women. Given that reproduction is a key element of both evolutionary theory and many religious doctrines, Dr. Bikman questions the wisdom of using a drug that compromises reproductive function.
Dr. Bikman concludes by connecting the role of insulin to mTOR activation. He argues that insulin has a much stronger effect on mTOR than dietary protein does, and prolonged elevated insulin levels, common in modern diets, kee…