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The Metabolic Classroom with Dr. Ben Bikman
Why Your Cells Age (And What You Can Do About It)
đ˘ Ask Dr. Bikmanâs Digital Mind (multilingual):
https://benbikman.com/ben-bikmans-digital-ai-mind
đ˘ Dr. Bikmanâs Community & Coaching Site: https://insuliniq.com
Topic:
Ben explains how AMPK and mTOR are critical regulators of aging and metabolism, and how their balance can be influenced by diet and lifestyle. Instead of drugs like rapamycin, strategies like carbohydrate restriction and ketosis offer a safer path to optimizing longevity.
Summary:
In this Metabolic Classroom mini lecture, Dr. Bikman explores two of the most important molecular âswitchesâ that regulate how cells age, grow, and repair themselves: AMPK and mTOR.
These pathways operate in a delicate balanceâAMPK promotes energy conservation, fat oxidation, and cellular cleanup (autophagy), while mTOR supports cellular growth and protein synthesis. When AMPK is up, mTOR is down, and vice versa.
Ben explains how modern lifestylesâespecially chronic overnutrition and excess carbohydrate intakeâshift this balance toward persistent mTOR activation, which may accelerate aging and metabolic disease. He critiques the growing popularity of rapamycin for longevity, citing its lack of human data and serious side effects, particularly reproductive harm. Instead, he proposes that simple lifestyle strategiesâlike carbohydrate restriction, ketosis, and supplementation with ketones like BHBâcan more safely optimize the AMPK/mTOR balance.
He also highlights the importance of ketones as both energy sources and signaling molecules that can activate AMPK and stimulate autophagy. The lecture ends with a clear takeaway: longevity and metabolic health may not require pharmaceuticals, but rather informed choices around diet and lifestyle.
References:
For complete show notes and references, we invite you to become an Insider subscriber. Youâll enjoy real-time, livestream Metabolic Classroom access which includes live Q&A with Ben after the lecture, unlimited access to Dr. Bikmanâs Digital Mind, ad-free podcast episodes, show notes and references, and Benâs Weekly Research Review Podcast. Learn more: https://www.benbikman.com
NOTE: The information presented is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Dr. Bikman is not a clinicianâand, he is not your doctor. Always seek the advice of your own qualified health providers with questions you may have regarding medical conditions.
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135. How Glucose Overload Breaks Your Metabolism (And How to Fix It)
27:37||Ep. 135đ˘ Ask Dr. Bikmanâs Digital Mind (multilingual):https://benbikman.com/ben-bikmans-digital-ai-mindđ˘ Dr. Bikmanâs Community & Coaching Site: https://insuliniq.comTopic:This episode explores how the NADâş/NADH ratio acts as a key metabolic switch, where excess NADHâoften driven by high glucose intakeâleads to insulin resistance and cellular dysfunction. Ben highlights how lifestyle changes, not supplements, offer the most effective way to restore balance and protect metabolic health.Summary:In this mini lecture, Dr. Bikman explains the critical role of the NADâş to NADH ratio in cellular metabolism and its link to insulin resistance.NADâş and NADH function like a cellular battery, cycling between charged and uncharged states to fuel energy production. However, when this balance tips toward excess NADHâas happens with chronic high glucose intake, aging, alcohol consumption, or inactivityâmetabolic dysfunction follows.Ben walks through the mechanisms by which a low NADâş/NADH ratio disrupts insulin signaling, including suppression of mitochondrial function, accumulation of harmful lipid intermediates (like ceramides), and increased oxidative stress. He also introduces the concept of "reductive stress," a pseudo-hypoxic state that cells enter when overwhelmed by glucose, leading to long-term damage and perpetuation of insulin resistance.To improve this ratio and support better metabolic health, Dr. Bikman recommends five main lifestyle strategies: restricting refined carbohydrates, exercising regularly, practicing time-restricted eating, optimizing sleep, and reducing or eliminating alcohol.While NADâş-boosting supplements like nicotinamide riboside show promise in animal models, their human effects remain limitedâhighlighting that lifestyle changes still provide the most reliable path to metabolic improvement.References:For complete show notes and references, we invite you to become an Insider subscriber. Youâll enjoy real-time, livestream Metabolic Classroom access which includes live Q&A with Ben after the lecture, unlimited access to Dr. Bikmanâs Digital Mind, ad-free podcast episodes, show notes and references, and Benâs Weekly Research Review Podcast. Learn more: https://www.benbikman.comNOTE: The information presented is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Dr. Bikman is not a clinicianâand, he is not your doctor. Always seek the advice of your own qualified health providers with questions you may have regarding medical conditions.
133. Separating Nicotine from Smoking: Myths, Metabolism, and Medicine
21:46||Ep. 133Listen ad-free by becoming an Insider: https://benbikman.comAsk Dr. Bikmanâs Digital Mind (multilingual): https://benbikman.com/ben-bikmans-digital-ai-mindDr. Bikmanâs Community & Coaching Site, Insulin IQ: https://insuliniq.comNicotine may not be the addictive villain it's made out to be. When separated from cigarette smoke, it shows surprising anti-inflammatory and neurological potential.Summary:In this Metabolic Classroom mini lecture, Dr. Ben Bikman revisits the molecule nicotineânot as an endorsement to use it, but to explore its distinct effects when separated from harmful compounds in cigarettes.Contrary to popular belief, nicotine alone is not highly addictive; tobacco additives like pyrazines likely amplify the addiction seen in cigarettes. Dr. Bikman details nicotineâs anti-inflammatory properties, particularly through activation of the alpha-7 nicotinic acetylcholine receptor, which may help conditions like ulcerative colitis, sepsis, and arthritis.Ben also explores its complex effects on metabolismâsuch as increased thermogenesis and fat oxidationâwhile warning of potential insulin resistance with sustained use.Lastly, he reviews fascinating clinical research suggesting therapeutic potential in conditions like ADHD, autism, Touretteâs syndrome, and even Alzheimerâs, all while emphasizing that nicotine, when separated from cigarette smoke, warrants more open scientific inquiry.References:For complete show notes and references, we invite you to become an Insider subscriber. Youâll enjoy real-time, livestream Metabolic Classroom access which includes live Q&A with Ben after the lecture, unlimited access to Dr. Bikmanâs Digital Mind, ad-free podcast episodes, show notes and references, and online, live Office Hours access with Ben. It also includes Benâs Weekly Research Review Podcast. Learn more: https://www.benbikman.comNOTE: The information presented is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Dr. Bikman is not a clinicianâand, he is not your doctor. Always seek the advice of your own qualified health providers with questions you may have regarding medical conditions.
132. The Hidden Power of Ketones: Fueling + Signaling
27:57||Ep. 132Listen ad-free by becoming an Insider: https://www.benbikman.comReferences:For complete show notes and references, we invite you to become an Insider subscriber. Youâll enjoy real-time, livestream Metabolic Classroom access which includes live Q&A with Ben after the lecture, unlimited access to Dr. Bikmanâs Digital Mind, ad-free podcast episodes, show notes and references, and online, live Office Hours access with Ben. It also includes Benâs Weekly Research Review Podcast.đ˘ Ask Dr. Bikmanâs Digital Mind (multilingual):https://benbikman.com/ben-bikmans-digital-ai-mindđ˘ Dr. Bikmanâs Community & Coaching Site, Insulin IQ: https://insuliniq.comTopic Today:Ketones, particularly BHB, arenât just backup fuelâtheyâre powerful signals that affect inflammation, gene expression, and mitochondrial function. This episode shows how BHB acts like a hormone to enhance metabolic health and cellular resilience.Summary:In this episode of the Metabolic Classroom, Dr. Bikman explores the remarkable role of beta-hydroxybutyrate (BHB), the most abundant ketone body, as both a metabolic fuel and a cellular signaling molecule. While traditionally seen as mere backup energy, BHB is now recognized as a potent agent that influences gene expression, reduces inflammation, and protects mitochondrial function.Ben unpacks the dual nature of BHB, describing how it activates specific receptors like GPR109A and FFAR3, modulates immune responses, and directly inhibits the NLRP3 inflammasome, a key player in chronic inflammation. He also highlights how BHB affects epigenetic regulation through HDAC inhibition, enhancing cellular resilience and antioxidant defenses.The lecture concludes by tying these pathways together to show how ketonesâwhether produced endogenously or taken as supplementsâconvey a coordinated biological signal of adaptation and protection. This shift in understanding elevates ketones from mere âbackup fuelâ to central players in metabolic health.NOTE: The information presented is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Dr. Bikman is not a clinicianâand, he is not your doctor. Always seek the advice of your own qualified health providers with questions you may have regarding medical conditions.Benâs favorite yerba mate and fiber: https://ufeelgreat.com/usa/en/c/1BA884Exogenous ketones: A high-quality option is the NSF-certified goBHB from Clean Form Nutrition, where you can use the code BEN10 for a 10% discount: https://cleanformnutrition.com/products/go-bhbBenâs favorite meal-replacement shake: https://gethlth.com (discount: BEN10)Benâs favorite health check-up for men: https://blokes.co/drben15 (discount: DRBEN15)
131. GLP-1 Isnât Enough: Why Glucagon is the Key to Lasting Weight Loss
22:37||Ep. 131đ˘ Ask Dr. Bikmanâs Digital Mind (multilingual): https://benbikman.com/ben-bikmans-digital-ai-mindđ˘ Dr. Bikmanâs Community & Coaching Site, Insulin IQ: https://insuliniq.comIn this lecture, Dr. Ben Bikman explores the misunderstood role of glucagon, insulinâs often-overlooked metabolic counterpart.While insulin encourages fat storage and glucose uptake, glucagon signals the body to mobilize and burn stored energy. Contrary to popular belief, glucagon does not stimulate fat release from adipose tissue in humans. Instead, its fat-burning effects occur primarily in the liver, where it enhances fatty acid oxidation, ketone production, and energy expenditure.Glucagonâs power lies in shifting the metabolic balance through the insulin-to-glucagon ratioâa key determinant of whether the body stores or burns fat. Ben also unpacks the liver's molecular response to glucagon, including activation of mitochondrial fat-burning enzymes and ketone formation. Human studies now confirm that glucagon increases liver fat oxidation, making it a valuable target in new weight-loss drugs.New dual and triple agonist drugs that combine GLP-1 with glucagon receptors show superior weight loss outcomes compared to GLP-1 alone. They not only suppress appetite but also increase metabolic rate, making them potent tools in fighting obesity and fatty liver disease. However, lifestyle strategies like fasting and low-carb diets remain powerful ways to naturally leverage glucagonâs benefits without pharmaceutical intervention.Show Notes/References:For complete show notes and references, we invite you to become an Insider subscriber or member. Youâll enjoy real-time, livestream Metabolic Classroom access which includes live Q&A with Ben after the lecture, unlimited access to Dr. Bikmanâs Digital Mind, ad-free podcast episodes, show notes and references, and online, live Office Hours access with Ben. It also includes Benâs Weekly Research Review Podcast. Learn more: https://www.benbikman.comNOTE: The information presented is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Dr. Bikman is not a clinicianâand, he is not your doctor. Always seek the advice of your own qualified health providers with questions you may have regarding medical conditions.
130. Stop Metabolic Inflammation at the Source: Your Gut
34:57||Ep. 130đ˘ Become an Insider: https://benbikman.comđ˘ Benâs LPS/Leaky Gut Recommendations: https://us.fullscript.com/plans/insuliniq-leaky-gut-recommendationsđ˘ Ask Dr. Bikmanâs Digital Mind (multilingual):https://benbikman.com/ben-bikmans-digital-ai-mindđ˘ Dr. Bikmanâs Community & Coaching Site, Insulin IQ: https://insuliniq.comIn this Metabolic Classroom lecture, Ben explains how lipopolysaccharides (LPS)âtoxic molecules from gram-negative gut bacteriaâcan escape into the bloodstream through a compromised intestinal lining, triggering chronic low-grade inflammation and insulin resistance.Dr. Bikman breaks down the roles of tight junction proteins like ZO-1, occludin, and claudins, and explains how the signaling molecule zonulin disrupts these junctions. Zonulin release is often triggered by dysbiosis and dietary components like gluten and fructose.He also highlights how LPS-induced inflammation impairs insulin signaling and promotes ceramide production, contributing to liver fat accumulation and systemic insulin resistance.Ben offers practical, evidence-based strategies to maintain gut barrier integrity and reduce LPS absorptionâthese include:- apple cider vinegar- spore-forming probiotics (especially Bacillus subtilis)- prebiotic fibers (like FOS and XOS)- and omega-3-rich foods or supplementsDr. Bikman ends with dietary and lifestyle takeaways to protect gut health and metabolic function.Show Notes/References:For complete show notes and references, we invite you to become an Insider subscriber or member. Youâll enjoy real-time, livestream Metabolic Classroom access which includes live Q&A with Ben after the lecture, unlimited access to Dr. Bikmanâs Digital Mind, ad-free podcast episodes, show notes and references, and online, live Office Hours access with Ben. It also includes Benâs Weekly Research Review Podcast. Learn more: https://www.benbikman.comNOTE: The information presented is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Dr. Bikman is not a clinicianâand, he is not your doctor. Always seek the advice of your own qualified health providers with questions you may have regarding medical conditions.
129. Boost Testosterone Naturally: Mitochondria, Insulin, and Fighting Back
24:38||Ep. 129đ˘ To listen ad-free, become an Insider: Benâs website, https://www.benbikman.comđ˘ Dr. Bikmanâs Community & Coaching Site, Insulin IQ: https://insuliniq.comIn this episode Dr. Bikman explores the concept of âmale menopause,â more accurately termed andropause. While women experience a dramatic hormonal drop-off due to the depletion of ovarian follicles, men experience a gradual decline in testosterone, primarily because their testosterone-producing Leydig cells become less efficient with age. This slow reduction begins in the 30s or 40s, and free testosterone (the biologically active form) declines even faster than total testosterone due to increasing levels of sex hormone-binding globulin (SHBG).The lecture delves into the cellular mechanisms behind this decline, focusing on mitochondrial dysfunction and insulin resistance. Because testosterone synthesis starts with cholesterol being transported into the mitochondria, anything that impairs this transportâlike declining STAR and TSPO proteins or mitochondrial fragmentationâcan reduce testosterone production. Dr. Bikman emphasizes that insulin resistance plays a central role by impairing Leydig cell responsiveness and increasing ceramide production, which worsens mitochondrial fission and dysfunction.Body fat also plays a major role in hormonal health, as it increases aromatase activity, converting testosterone into estradiol. This creates a damaging feedback loopâmore fat leads to more estrogen, which suppresses testosterone production, which then leads to more fat gain.Dr. Bikman outlines a set of interventions to break this cycle and support testosterone naturally, including:- Weight loss, especially reducing visceral fat- Resistance training, with caution to avoid overtraining- Cold exposure, done strategically (before, not after exercise)- Sleep hygiene and stress reduction- Limiting alcohol intake- And in some cases, Testosterone Replacement Therapy (TRT), with caveats about fertilityShow Notes/References:For complete show notes and references, we invite you to become an Insider subscriber or member. Youâll enjoy real-time, livestream Metabolic Classroom access which includes live Q&A with Ben after the lecture, unlimited access to Dr. Bikmanâs Digital Mind, ad-free podcast episodes, show notes and references, and online, live Office Hours access with Ben. It also includes Benâs Weekly Research Review Podcast. Learn more: https://www.benbikman.comAlso, Dr. Bikmanâs Digital Mind can interact with you in many languages: https://benbikman.com/ben-bikmans-digital-ai-mindIMPORTANT NOTE: The information presented is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Dr. Bikman is not a clinicianâand, he is not your doctor. Always seek the advice of your own qualified health providers with questions you may have regarding medical conditions.Benâs favorite yerba mate: https://ufeelgreat.com/usa/en/c/1BA884
128. How Omega-3s Supercharge Fat Loss and Muscle Gain
20:34||Ep. 128đ˘ To listen ad-free, become an Insider: Benâs website, https://www.benbikman.comđ˘ Dr. Bikmanâs Community & Coaching Site, Insulin IQ: https://insuliniq.comIn this mini lecture, Dr. Bikman explains the powerful metabolic effects of long-chain omega-3 fatty acidsâspecifically EPA and DHAâon fat metabolism and muscle growth.Ben starts by clarifying the difference between plant-based ALA and animal-based EPA/DHA, emphasizing that only the latter provide meaningful metabolic benefits. Plant-based ALA converts very poorly into EPA/DHA, making direct consumption of animal sources (like fatty fish or pasture-raised meats) crucial for those seeking metabolic improvement.Dr. Bikman then explores how EPA and DHA enhance fat burning by stimulating mitochondrial biogenesis and improving mitochondrial efficiency. They increase the expression of CPT1 (the fat-shuttling enzyme) and promote mitochondrial uncoupling through UCP1 and UCP3, helping the body burn more fatâeven at rest. He also describes how omega-3s literally become part of mitochondrial membranes, improving their fluidity, fuel processing, and ATP production without increasing oxidative stress.Shifting to muscle, he explains how omega-3s amplify the muscle-building response to insulin and amino acids by enhancing mTOR signaling. Studies show omega-3s can significantly boost muscle protein synthesis and preserve muscle mass during injury or disuse. They improve membrane fluidity and cell signaling, making muscles more responsive to growth stimuli.Ben concludes with a practical recommendation: daily intake of 2â4 grams of combined EPA and DHA from animal sources (like fish or high-quality supplements) is ideal. He reminds viewers that plant-based omega-3s will not deliver these same benefits and encourages consistent intake over time for best results.Show Notes/References:For complete show notes and references, we invite you to become an Insider subscriber or member. Youâll enjoy real-time, livestream Metabolic Classroom access which includes live Q&A with Ben after the lecture, unlimited access to Dr. Bikmanâs Digital Mind, ad-free podcast episodes, show notes and references, and online, live Office Hours access with Ben. It also includes Benâs Weekly Research Review Podcast. Learn more: https://www.benbikman.comAlso, Dr. Bikmanâs Digital Mind can interact with you in many languages: https://benbikman.com/ben-bikmans-digital-ai-mindIMPORTANT NOTE: The information presented is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Dr. Bikman is not a clinicianâand, he is not your doctor. Always seek the advice of your own qualified health providers with questions you may have regarding medical conditions.#omega3 #epa #dha #fatburning #musclegrowth #metabolism #mitochondria #nutritionfacts #buildmuscle #weightloss #biohacking #healthtips #lowcarb #keto #fitnessgoals #fishoil #nutrients #insulinresistance #healthylifestyle Benâs favorite yerba mate: https://ufeelgreat.com/usa/en/c/1BA884Exogenous ketones: A high-quality option is the NSF-certified goBHB from Clean Form Nutrition, where you can use the code BEN10 for a 10% discount: https://cleanformnutrition.com/products/go-bhb
127. Ketones and Your Heart - How Ketones Protect the Cardiovascular System
26:18||Ep. 127Listen Ad-Free: https://benbikman.comIn this Metabolic Classroom mini lecture, Dr. Bikman explores the powerful effects of ketonesâparticularly beta-hydroxybutyrate (BHB)âon the cardiovascular system. While ketones are typically thought of as a backup fuel, Ben explains how they are, in fact, an adaptive and efficient energy source that can support heart function in both healthy and failing states.Ben breaks down groundbreaking studies showing that ketones increase cardiac output, reduce vascular resistance, and improve heart functionâespecially in heart failure cases. He highlights the unique ability of BHB to reduce âafterload,â or the resistance the heart must pump against, effectively easing the heartâs workload. He also details ketonesâ role in promoting vasodilation by acting on endothelial cells and smooth muscle, increasing nitric oxide and improving overall circulation.Beyond fuel metabolism, BHB also acts as a signaling molecule with epigenetic and anti-inflammatory effects. It can modulate gene expression by influencing histone acetylation and β-hydroxybutyrylation, leading to improved antioxidant defense and reduced inflammation via inhibition of the NLRP3 inflammasomeâa key player in heart failure and atherosclerosis.Finally, he touches on the practical implications, suggesting both ketogenic diets and exogenous ketone supplementsâparticularly L-BHBâas viable strategies for enhancing cardiovascular resilience. This lecture positions ketones not just as fuel, but as potent metabolic signals capable of supporting and even restoring heart health.Show Notes/References:For complete show notes and references, we invite you to become an Insider subscriber or member. Youâll enjoy real-time, livestream Metabolic Classroom access which includes live Q&A with Ben after the lecture, unlimited access to Dr. Bikmanâs Digital Mind, ad-free podcast episodes, show notes and references, and online, live Office Hours access with Ben. It also includes Benâs Weekly Research Review Podcast. Learn more: https://www.benbikman.comIMPORTANT NOTE: The information presented is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Dr. Bikman is not a clinicianâand, he is not your doctor. Always seek the advice of your own qualified health providers with questions you may have regarding medical conditions.