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In this episode of "The Peter Attia Drive," host Peter Attia discusses cholesterol and cardiovascular health with guests Dave Feldman and Thomas Dayspring. The conversation centers around Feldman's cholesterol drop protocol and the concept of "lean mass hyper-responders," individuals who experience high LDL cholesterol levels on low-carbohydrate or ketogenic diets. Feldman expresses skepticism about the traditional view that LDL is a causal factor in heart disease, while Attia shares his doubts about Feldman's model, particularly regarding mass balance and the mechanisms behind elevated LDL levels. Attia outlines three main points of contention: the inability to explain the mass balance of cholesterol, the relationship between VLDL production and LDL concentration, and the dismissal of genetic mutations that affect cholesterol levels. He emphasizes the complexity of atherosclerosis, which involves multiple risk factors beyond lipoproteins. The discussion highlights the need for individuals to make informed decisions about their health, particularly those with high LDL levels due to dietary changes. Feldman shares his journey into lipidology, driven by personal health experiences and self-experimentation. He notes that many people on low-carb diets see increases in LDL cholesterol but may not be at risk for cardiovascular disease if they maintain high HDL and low triglyceride levels. Attia challenges this notion, arguing that high LDL levels should not be dismissed without considering the broader implications for cardiovascular health. The conversation delves into the nuances of lipid metabolism, the role of the liver in cholesterol synthesis and clearance, and the importance of understanding individual variations in lipid profiles. Attia and Feldman discuss the potential for future research to clarify the relationship between cholesterol levels and cardiovascular risk, emphasizing the need for more comprehensive data to guide clinical decisions. Throughout the episode, both guests acknowledge the complexity of lipidology and the ongoing debates within the field. They encourage listeners to critically evaluate the information presented and to consider the implications of their dietary choices on their health. The discussion concludes with a call for further exploration of the connections between diet, cholesterol, and cardiovascular disease, highlighting the importance of continued research and dialogue in this area.

Joe Rogan and Chris Kresser discuss the complexities of nutrition, particularly the term "paleo" and its baggage. Kresser expresses regret over using the term, noting that while it is recognizable, it often leads to misunderstandings about what it entails. They explore the diets of Paleolithic ancestors, emphasizing that they consumed a variety of foods, including meat, fish, wild fruits, and vegetables, while avoiding processed foods prevalent in modern diets. Kresser highlights the nutrient density of organ meats and the importance of traditional diets, pointing out that modern diets often lack the diversity and nutrient content found in those of hunter-gatherer societies. He discusses the role of gut health in overall well-being, explaining how a disrupted gut microbiome can influence cravings and health outcomes. The conversation shifts to the medical system's approach to health, with Kresser criticizing the tendency to prescribe medications without addressing underlying causes. He uses the analogy of having a rock in your shoe to illustrate how the medical system often treats symptoms rather than root problems. They discuss the pharmaceutical industry's influence on healthcare and the need for a more holistic approach to health. Kresser emphasizes the importance of understanding individual health needs, including the role of genetics and lifestyle factors in disease prevention. He advocates for eating real, whole foods and suggests that functional medicine practitioners can help individuals identify and address their unique health challenges. They also touch on the misconceptions surrounding cholesterol and saturated fats, explaining that recent research challenges the traditional view that these are inherently harmful. Kresser argues that the focus should be on the number of LDL particles rather than just cholesterol levels, and that lifestyle changes, such as weight loss and improved diet, can significantly impact health markers. The discussion concludes with Kresser encouraging listeners to take charge of their health through informed dietary choices and to seek out functional medicine practitioners for personalized care. He shares resources for further learning, including his website and podcast, emphasizing the importance of understanding the complexities of nutrition and health.

The conventional view on heart disease emphasizes that high cholesterol, particularly high LDL, is a significant risk factor for cardiovascular issues. Organizations recommend keeping total cholesterol under 200 and LDL under 100, often linking saturated fat intake to increased LDL levels. However, within the low-carb and ketogenic communities, discussions have shifted towards understanding LDL particle types, distinguishing between large, buoyant particles (pattern A) and small, dense particles (pattern B). Those with pattern A argue that high LDL levels may not pose the same risk. Dave Feldman introduces the lipid energy model, suggesting that high LDL levels in individuals on low-carb diets may reflect their metabolic health rather than a direct risk for heart disease. He explains that fat metabolism requires lipoproteins to transport fatty acids, leading to higher LDL levels in metabolically healthy individuals who utilize fat as their primary fuel source. This model posits that high HDL and low triglycerides are indicators of good metabolic health, regardless of LDL levels. Feldman discusses his research on "lean mass hyper-responders," individuals with high LDL and APOB but otherwise healthy metabolic profiles. He highlights the need for studies focusing on this group, as traditional research often centers on those with metabolic issues. His study involved 100 participants who underwent CT angiograms to assess plaque levels, revealing that high LDL did not correlate with plaque progression in metabolically healthy individuals. The findings challenge the notion that high LDL is the central driver of cardiovascular disease, suggesting that metabolic health factors like insulin resistance may play a more critical role. Feldman emphasizes the importance of imaging to assess heart health and encourages individuals to consider their metabolic status when evaluating cholesterol levels. He advocates for a nuanced approach to dietary recommendations, recognizing that while some may thrive on low-carb diets, others may need to monitor their cholesterol more closely. Feldman’s ongoing research aims to further explore the relationship between LDL levels and cardiovascular risk, emphasizing the need for more data on metabolically healthy individuals with high cholesterol. He encourages support for citizen science initiatives to fund further studies and improve understanding in this area.

Dave Feldman discusses his controversial hypothesis regarding LDL cholesterol, suggesting that high levels may be physiological rather than pathological, particularly in metabolically healthy individuals on ketogenic diets. He shares his personal experience of increased cholesterol on a low-carb diet, raising questions about the traditional view that lower cholesterol equates to better heart health. Feldman emphasizes the importance of context, noting that high LDL combined with high HDL and low triglycerides may not indicate increased cardiovascular risk. The conversation explores the implications of this hypothesis, challenging the prevailing lipid hypothesis that high LDL is inherently harmful. Feldman and his colleague Nicolas Norwitz are conducting research to investigate the relationship between high LDL levels and cardiovascular health in metabolically healthy individuals. They highlight the lack of studies focusing on this demographic, which often skews the understanding of LDL's role in heart disease. Feldman references a notable experiment by Norwitz, where he consumed Oreo cookies while on a ketogenic diet, resulting in a significant drop in LDL cholesterol, outperforming a statin in lowering cholesterol levels. This experiment aims to draw attention to the lipid energy model, suggesting that cholesterol levels may fluctuate based on dietary composition and metabolic state rather than solely indicating disease risk. The discussion also touches on the limitations of existing research, which often focuses on populations with metabolic dysfunction, potentially misrepresenting the relationship between LDL and cardiovascular disease. Feldman argues for a more nuanced understanding of lipid metabolism and the need for further studies on healthy individuals with high LDL levels. The conversation concludes with a call for continued exploration and research into these topics, emphasizing the importance of questioning established medical beliefs and fostering open dialogue in the scientific community. Feldman invites listeners to engage with ongoing research efforts and participate in discussions about metabolic health and cholesterol management.

In this episode of the Ultimate Human Podcast, British cardiologist Dr. Aseem Malhotra discusses the misconceptions surrounding statin therapy and LDL cholesterol. He highlights that most statin users are low-risk individuals and that the benefits of statins in preventing heart attacks are minimal—one in a hundred over five years. Dr. Malhotra emphasizes that elevated LDL cholesterol is not an independent risk factor for heart disease and may even correlate with longevity in older populations. He points out that chronic stress is a significant risk factor for heart disease, equating it to smoking 20 cigarettes a day. Lifestyle changes, including diet and meditation, can reverse heart disease, as demonstrated by a study in India where patients experienced a 20% reduction in artery blockages through lifestyle interventions.

Gary says, "Give me 13 weeks and I'll change your life." Dana White recalls a near‑fatal health crisis three years earlier and a practical program centered on keto reset, routine, whole foods, basic supplements, grounding, breath work, sunlight. It didn’t take 13 weeks; it took six, and the glow was addictive. Dana praises Gary's impact on his life and business, noting seven‑plus billion dollar deals, a Paramount deal, and a rising Power Slap rights package. He describes a three‑year journey since meeting Gary and rejects the idea that change isn’t possible, jokingly answering skeptics. He recounts Dana’s Lyme disease stories in his family, including diagnosing a cousin at the Mayo Clinic and delivering a rapid protocol that improved his cousin in days. He references other health journeys and repeats that many criticisms are unfounded. They review the labs from the initial meeting: extremely viscous blood (hematocrit over 51); early stage kidney function in the 40s–50s; triglycerides 764, later 79; total cholesterol 190; eGFR in the 90s later; homocysteine lowered with trimethylglycine, which helped normalize blood pressure; hemoglobin A1C fell from 6.4 to 5.3 without diabetes meds; vitamin D3 rose from the low 20s to 60–80; thyroid T3 improved with methylation support rather than thyroid meds; insulin fell from above 32 to nine; and overall the approach relied on basics rather than heavy pharmaceuticals, with no GLP-1 drugs. Dana notes lifestyle changes: fewer supplements, ongoing red light therapy, PEMF, cold plunges, sauna; cycling between keto and off‑keto while maintaining health; he emphasizes how this work is accessible and not just for the wealthy. He also discusses the evolving pay‑per‑view landscape, streaming, and destination sports, insisting pay‑per‑view isn’t dead, just changing, as fights like Canelo‑Crawford and Power Slap shift the model.

The discussion centers around a group known as lean mass hyperresponders who adopt low-carb diets and experience significantly elevated LDL cholesterol levels. A year-long study using high-resolution CT angiography found that, contrary to conventional beliefs, most participants showed no or minimal plaque progression despite high LDL levels, with only a modest increase in atheroma volume. The study revealed that LDL and apoB levels did not predict plaque progression; rather, the presence of plaque at baseline was the key predictor. Functional tests like the coronary artery calcium (CAC) scan were identified as more effective in assessing risk. Lean mass hyperresponders represent a unique population with high LDL as an isolated variable, distinct from those with metabolic dysfunction or genetic conditions like familial hypercholesterolemia. Their high LDL levels result from metabolic adaptations to low-carb diets rather than lipid metabolism disorders. This challenges traditional views on cholesterol and heart disease risk, suggesting that context is crucial in assessing individual risk profiles. The conversation also touches on the broader implications of diet on heart health, particularly the misconceptions surrounding red meat and cholesterol. While LDL and apoB are part of the causal cascade for heart disease, their impact varies significantly among individuals based on other risk factors, including lifestyle and genetics. The hosts emphasize the importance of personalized risk assessments and functional testing over generalized dietary guidelines. Nick Norwitz shares his personal journey with health issues, including osteoporosis and ulcerative colitis, which led him to explore ketogenic and carnivore diets. He notes that many individuals with gut health issues turn to these diets out of desperation when conventional treatments fail. The discussion highlights the need for more research into these dietary approaches, particularly their potential benefits for those with inflammatory bowel diseases. The conversation also addresses the controversial topic of artificial sweeteners, particularly aspartame, and their potential links to heart disease. While some studies suggest negative effects, the hosts advocate for informed decision-making based on individual health profiles rather than blanket avoidance of certain foods. Overall, the dialogue underscores the complexity of nutrition science, the importance of individualized health strategies, and the need for ongoing research to better understand the relationship between diet, cholesterol, and heart health.