Episode Summary: Rethinking Cholesterol, Keto, and Cardiovascular Risk with Nick Norowitz

In this enlightening episode of The Dr. Hyman Show, host Dr. Mark Hyman engages in a deep and thought-provoking conversation with Nick Norowitz, a Harvard medical student and Oxford PhD who has made remarkable strides in redefining the relationship between diet, cholesterol, and overall metabolic health.

1. Nick Norowitz’s Personal Health Journey

[00:00] Nick Norwitz: "The Oreo cookies lowered my LDL by 71% in just 16 days. I think the top 10 drugs only help like 1 to 4 to 1 in 10 people who take them."

Nick begins by sharing his extraordinary experience of reversing chronic illness through dietary experimentation. Growing up in a household of medical professionals, he initially viewed nutrition science as “fluffy” and not grounded in real medicine. However, his battle with severe inflammatory bowel disease (ulcerative colitis) led him to explore various diets in desperation, culminating in the adoption of a ketogenic diet that resulted in complete remission of his symptoms.

2. Understanding Metabolic Health Beyond LDL Cholesterol

[15:59] Nick Norwitz: "Metabolic health is when your body's systems are running in a way to optimize performance and minimize risk of chronic disease."

Dr. Hyman and Nick delve into the concept of metabolic health, emphasizing that it encompasses a range of biomarkers beyond just LDL cholesterol. They discuss how traditional medical models overly focus on LDL as the primary indicator of cardiovascular risk, neglecting other critical factors like insulin resistance, triglyceride to HDL ratio, and visceral fat. Nick introduces the metaphor of a "tree of metabolic illness," where addressing root causes such as insulin resistance can prevent multiple chronic diseases simultaneously.

3. The Oreo Cookies Experiment: Challenging Conventional Wisdom

[35:00] Dr. Mark Hyman: "Just talk about this for a sec because I think it's fascinating. You're on a keto diet, your LDL is 500 and change, and you start to eat Oreo cookies along with your keto diet and you notice something radical happened. And you also tried a drug to do the same thing and the Oreo cookies worked better than the drug. Explain that."

Nick recounts his unconventional experiment where he added a sleeve of Oreo cookies daily to his strict ketogenic diet. Surprisingly, this addition lowered his LDL cholesterol by 71%, outperforming the effect of statin drugs, which typically reduce LDL by about 32.5%. [38:35] Nick Norwitz: "The Oreo cookies lowered my LDL by 71.1% in just 16 days."

This experiment was designed to provoke discussion and highlight the complex physiology behind cholesterol metabolism, especially in "lean mass hyper responders"—individuals who experience significant LDL increases on low-carb diets. Nick explains that in these individuals, ketogenic diets enhance fat burning and alter lipoprotein particles, resulting in higher LDL but also lower triglycerides and higher HDL.

4. Critiquing the Current Medical Paradigm

[21:20] Dr. Mark Hyman: "Most drugs, most drugs don't work for most of the people who take them. They just work for a small section."

The conversation critiques the pharmaceutical-driven medical model, which prioritizes easily measurable biomarkers and drug interventions over comprehensive metabolic assessments. Both Dr. Hyman and Nick argue that the focus on LDL cholesterol and statin prescriptions overlooks more significant factors like insulin resistance, which poses a much higher risk for heart attacks. They advocate for a shift towards personalized medicine, where treatments are tailored based on a detailed understanding of an individual's metabolic profile.

5. Personalized Medicine and N=1 Experiments

[43:09] Nick Norwitz: "I'm going to publish the results which were that the Oreo cookies lowered my LDL by 71.1% in just 16 days."

Nick emphasizes the importance of personalized, "N=1" experiments in uncovering effective health interventions. He argues that traditional randomized controlled trials (RCTs) are often ill-suited for dietary studies, which require individualized approaches. By empowering individuals to conduct their own health experiments—tracking biomarkers and personal well-being—Nick believes people can achieve remarkable health outcomes tailored to their unique biological makeup.

6. Debating Dietary Approaches: Vegan vs. Carnivore

[53:54] Nick Norwitz: "You tolerate those foods. I think they're perfectly fine. And the fact I'm quite jealous. I love Brussels sprouts. They just don't agree with me."

The episode explores the spectrum of dietary approaches, from vegan to carnivore diets, and their impact on metabolic health. Both Dr. Hyman and Nick agree that no single diet fits all, advocating for a personalized approach based on individual biomarkers and health goals. They discuss how elimination diets, whether plant-based or animal-based, can be therapeutic for specific conditions like inflammatory bowel disease, but caution against blanket claims that one diet is inherently superior to others.

7. The Role of Artificial Sweeteners

[86:31] Nick Norwitz: "There are really interesting data showing potential high impact harms like transgenerationally inheritable anxiety."

The discussion shifts to artificial sweeteners, particularly aspartame and sucralose, examining their potential adverse effects on mental health and metabolic function. Nick highlights studies suggesting that artificial sweeteners may contribute to insulin resistance and behavioral issues, advocating for informed dietary choices over relying on "diet" products as healthier alternatives.

8. Future Directions in Metabolic Health Research

[75:03] Nick Norwitz: "I'm committing myself to. It's not because I don't think western medicine has this place that I don't think it's important. It's that... I think the biggest impact can be had from empowering individuals with knowledge about metabolic health."

Looking ahead, Nick shares his decision to forgo medical residency to focus on advancing metabolic health education and research through platforms like social media and Function Health. He aims to scale up efforts to disseminate knowledge about metabolic health, support personalized health experiments, and challenge entrenched medical paradigms that prioritize pharmaceutical interventions over dietary solutions.

9. Conclusion: Embracing Curiosity and Personal Empowerment

[95:35] Nick Norwitz: "Stay curious."

Both Dr. Hyman and Nick advocate for a relentless pursuit of knowledge and personal empowerment in health decisions. They stress the importance of staying curious, questioning established norms, and leveraging available data to make informed choices that optimize individual metabolic health.

Key Takeaways

• Challenging Conventional Metrics: LDL cholesterol is not the sole indicator of cardiovascular risk; factors like insulin resistance and triglyceride to HDL ratio are equally, if not more, important.

• Personalized Approaches: Health interventions should be tailored to individual metabolic profiles rather than adopting a one-size-fits-all diet.

• Dietary Experimentation: Personal "N=1" experiments can uncover effective strategies for managing chronic diseases and improving overall metabolic health.

• Critical Evaluation of Research: It's essential to critically assess dietary studies, recognizing potential biases and the limitations of large population studies in determining causation.

• Future of Metabolic Health: Empowering individuals with knowledge and tools to manage their own health can complement and eventually shift the broader medical paradigm towards more holistic, diet-based interventions.

Notable Quotes:

• Nick Norwitz [00:00]: "The Oreo cookies lowered my LDL by 71% in just 16 days."

• Nick Norwitz [15:59]: "Metabolic health is when your body's systems are running in a way to optimize performance and minimize risk of chronic disease."

• Nick Norwitz [35:00]: "The Oreo cookies lowered my LDL by 71.1% in just 16 days."

• Dr. Mark Hyman [21:20]: "Most drugs, most drugs don't work for most of the people who take them. They just work for a small section."

• Nick Norwitz [43:09]: "I'm going to publish the results which were that the Oreo cookies lowered my LDL by 71.1% in just 16 days."

• Nick Norwitz [53:54]: "You tolerate those foods. I think they're perfectly fine."

• Nick Norwitz [86:31]: "There are really interesting data showing potential high impact harms like transgenerationally inheritable anxiety."

• Nick Norwitz [95:35]: "Stay curious."

This episode serves as a compelling call to reevaluate entrenched views on diet and metabolic health, encouraging both medical professionals and the general public to adopt a more nuanced, individualized approach to health and wellness.