visit: https://www.benbikman.com

visit: https://insuliniq.com

In this Metabolic Classroom lecture, Dr. Bikman explores the deep biochemical relationship between stress and ketone production, uncovering how the body interprets stress signals as cues to mobilize fat and create ketones.

He explains how stress hormones—like epinephrine, cortisol, glucagon, and growth hormone—aren’t just emergency signals but actually metabolic adaptation hormones that help the body shift into fat-burning mode. Through the sympathetic nervous system and hormone cascades, the body responds to stress by increasing lipolysis and triggering ketogenesis, even during fasting, exercise, or low-carb eating.

Ben walks through how ketogenesis begins at the level of fat cells and liver mitochondria, and how key molecules like acetyl-CoA and oxaloacetate determine whether the body makes glucose or ketones.

Importantly, he clarifies that while stress can trigger positive metabolic shifts, chronic stress without relief can lead to harmful insulin resistance. The takeaway: understanding the difference between acute and chronic stress is key to using this response to your metabolic advantage.

Hosted on Acast. See acast.com/privacy for more information.

📢 Dr. Bikman’s Community & Coaching Site, Insulin IQ: https://insuliniq.com

📢 Become an Insider, Ben’s website: https://www.benbikman.com

In this Metabolic Classroom lecture, Dr. Bikman explores the often-overlooked but metabolically vital glycocalyx—a carbohydrate-rich layer coating nearly every cell in the human body. Far from being just a structural feature, the glycocalyx influences nutrient absorption, immune response, vascular function, inflammation, and even how fat cells grow and behave.

Ben explains how this sugar-rich matrix is built from glycoproteins and glycosaminoglycans and how it's found in tissues like the gut, blood vessels, and fat cells, each playing unique roles. In the gut, it controls nutrient permeability and helps block pathogens. In blood vessels, it regulates nitric oxide release, controls protein leakage, and reduces the risk of clotting or atherosclerosis. And in fat cells, it influences cell growth, fuel handling, and inflammation.

Importantly, metabolic dysfunction—especially hyperglycemia—can severely damage the glycocalyx. While internal glucose helps build it, high glucose levels outside cells act like a “demolition crew,” triggering oxidative stress, inflammation, and glycation, all of which degrade this critical barrier.

Ben urges us to keep blood glucose in check, not only for insulin balance but also to protect this unsung hero of cell biology. The glycocalyx is a gatekeeper for metabolic health, and its degradation may be one root cause of diseases like diabetes, leaky gut, atherosclerosis, and insulin resistance.

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, Dr. Bikman’s “Digital Mind”, ad-free podcast episodes, show notes and references, and online, live Office Hours access with Ben. It also includes Ben’s Weekly Research Review Podcast, and a searchable archive that includes all Metabolic Classroom episodes. Learn more: https://www.benbikman.com

IMPORTANT NOTE: The information presented is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Dr. Bikman is not a clinician—and, he is not your doctor. Always seek the advice of your own qualified health providers with questions you may have regarding medical conditions.

Hosted on Acast. See acast.com/privacy for more information.

📢 Dr. Bikman’s Community & Coaching Site, Insulin IQ: https://insuliniq.com

📢 Become an Insider, Ben’s website: https://www.benbikman.com

In this episode of Metabolic Classroom, Ben Bikman takes a detailed look at the pancreas, a small but mighty organ with two major roles—endocrine and exocrine. The endocrine pancreas (just 1–2% of its mass) regulates metabolism by secreting hormones like insulin, glucagon, somatostatin, pancreatic polypeptide, and ghrelin. These hormones work together in a push-pull fashion to control blood sugar, fat storage, appetite, and nutrient use. Importantly, the flow of blood from endocrine tissue directly into the exocrine portion of the pancreas allows these hormones to rapidly influence digestion—a unique design seen in few other organs.

Dr. Bikman explains that the exocrine pancreas (about 98% of the organ) produces powerful digestive juices that include enzymes for breaking down carbohydrates, fats, and proteins. This fluid is rich in bicarbonate to neutralize stomach acid and protect the small intestine. The enzymes are released in inactive forms and activated only in the intestines to avoid damaging the pancreas itself.

The endocrine and exocrine systems are closely linked. For example, insulin not only manages nutrient storage but also supports the function and growth of the exocrine acinar cells. Conditions like pancreatitis and type 2 diabetes often affect both systems due to this interdependence. If one side of the pancreas is disrupted—such as when insulin production is impaired—the exocrine side may also begin to fail, leading to digestion and nutrient absorption problems.

This lecture underscores the critical role the pancreas plays in total metabolic health. From blood sugar control to nutrient absorption, its dual functionality makes it a cornerstone of digestive and hormonal balance. Supporting the pancreas through diet, exercise, and reduced insulin demand is essential for maintaining metabolic health across the board.

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 intended to be a substitute for professional medical advice, diagnosis, or treatment. Dr. Bikman is not a clinician—and, he is not your doctor. Always seek the advice of your own qualified health providers with questions you may have regarding medical conditions.

Hosted on Acast. See acast.com/privacy for more information.

📢 Dr. Bikman’s Community & Coaching Site, Insulin IQ: https://insuliniq.com

📢 Become an Insider, Ben’s website: https://www.benbikman.com

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 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 intended to be a substitute for professional medical advice, diagnosis, or treatment. Dr. Bikman is not a clinician—and, he is not your doctor. Always seek the advice of your own qualified health providers with questions you may have regarding medical conditions.

Ben’s favorite health check-up for men: https://blokes.co/drben15 (discount: DRBEN15)

Hosted on Acast. See acast.com/privacy for more information.

📢 Dr. Bikman’s Community & Coaching Site, Insulin IQ: https://insuliniq.com

📢 Become an Insider, Ben’s website: https://www.benbikman.com

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 intended to be a substitute for professional medical advice, diagnosis, or treatment. Dr. Bikman is not a clinician—and, he is not your doctor. Always seek the advice of your own qualified health providers with questions you may have regarding medical conditions.

Hosted on Acast. See acast.com/privacy for more information.

📢 Dr. Bikman’s Community & Coaching Site, Insulin IQ: https://insuliniq.com

📢 Become an Insider, Ben’s website: https://www.benbikman.com

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 archive that includes all Metabolic Classroom episodes and Research Reviews. Learn more: https://www.benbikman.com

Hosted on Acast. See acast.com/privacy for more information.

📢 Dr. Bikman’s Community & Coaching Site, Insulin IQ: https://insuliniq.com

📢 Become an Insider, Ben’s website: https://www.benbikman.com

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/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

Hosted on Acast. See acast.com/privacy for more information.

📢 Dr. Bikman’s Community & Coaching Site, Insulin IQ: https://insuliniq.com

📢 Become an Insider, Ben’s website: https://www.benbikman.com

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 Metabolic Classroom episodes and Research Reviews. Learn more: https://www.benbikman.com

Hosted on Acast. See acast.com/privacy for more information.

📢 Dr. Bikman’s Community & Coaching Site, Insulin IQ: https://insuliniq.com

📢 Become an Insider, Ben’s website: https://www.benbikman.com

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 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

Hosted on Acast. See acast.com/privacy for more information.

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.

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 

Hosted on Acast. See acast.com/privacy for more information.