Dr. Bikman’s Metabolic Classroom lecture this week explores peptides and their effects on metabolism, fat loss, muscle growth, and overall health.

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 hormone levels and require medical supervision.

Dr. Bikman concludes that peptides hold immense potential for metabolic health, fitness, and longevity, but should be used wisely and responsibly.

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

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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 solution. He encourages those struggling with acne to focus on cutting out refined carbohydrates, prioritizing protein, and embracing healthy fats to regulate insulin levels and improve skin health.

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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 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

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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/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

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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 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

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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.

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: 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 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)

Ben’s favorite exogenous ketone: https://www.americanketone.com (discount: Ben10)

Other products Ben likes: https://www.amazon.com/shop/benbikmanphd

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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 and Metabolism

(08:10) – The Unexpected Role of Melatonin in Metabolism

(19:35) – How Late-Night Eating and Blue Light Harm Sleep

(23:40) – Can Exogenous Ketones Improve Sleep Quality?

(28:20) – Practical Tips for Better Sleep and Metabolic Health

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We sincerely apologize! During the livestream recording, we experienced some technical difficulties between 07:15 to 08:50. Thanks for your patience and understanding.

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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:

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

Timestamps: (approximate)

(01:13) Overview of Salt- and Water-Regulating Hormones

(02:22) How Angiotensin II Influences Blood Pressure and Insulin Resistance

(06:37) The Metabolic Effects of Angiotensin II on Fat Cells

(11:22) Aldosterone’s Role in Insulin Resistance and Fat Cell Growth

(15:57) Metabolic Impacts of Antidiuretic Hormone (ADH)

(29:02) The Counterintuitive Effects of Salt Restriction on Metabolic Health

(33:13) The Role of Dehydration in Activating Metabolic Hormones

(34:51) Conclusion: How Blood Pressure Hormones Influence Metabolic Health

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