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Episode 248

Carnivore vs. Vegan Keto: Can Both Work?

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Carnivore vs. Vegan Keto: Can Both Work?

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About the host

Bret Scher, MD

Bret Scher, MD

Medical Director

Bret Scher, MD

Medical Director

Bret is the host of the Metabolic Mind YouTube channel and podcast. He is a board-certified cardiologist, lipidologist, and leading expert in therapeutic uses of metabolic therapies, including ketogenic diets. Prior to joining Baszucki Group, Bret was the medical director at DietDoctor.com, an online platform promoting improving metabolic health through low-carb nutrition, where he was a content creator and medical reviewer. Earlier in his career, he worked as a cardiologist in San Diego. Bret has spent most of his 20-year career as a preventive cardiologist, helping people improve their metabolic health and preventing heart disease using low-carb nutrition and lifestyle interventions. His deep passion for educating the public about the benefits of metabolic therapies grew from his experience with the prevailing medical teaching, which frequently misrepresents nutrition science and undervalues metabolic health. Bret received an MD from The Ohio State University College of Medicine and a BS in Biology from Stanford University. He grew up in San Diego and began competing in triathlons at an early age, which helped fuel his love of health and fitness. He continues to enjoy spending time outdoors mountain biking, swimming, hiking, and playing baseball with his two boys.
Learn more about Bret

About the host

Denise Potter

Denise Potter

Registered dietitian

Denise Potter

Registered dietitian

Denise Potter, RDN, is a registered dietitian with more than 30 years of experience, including approximately 20 years specializing in ketogenic medical therapies for neurological, mental health, and metabolic conditions.
Learn more about Denise

Key Highlights

  • Denise Potter describes evolving from clinical skepticism to recognizing that carnivore ketogenic diets genuinely help many patients improve their mental and physical health, emphasizing that any potential nutrient gaps, like vitamin C or iodine, are easily solvable through food choices or supplementation rather than reasons to avoid the diet entirely.
  • She explains that a true carnivore diet doesn’t always produce ketosis, since excess protein can convert to glucose, meaning people seeking ketogenic benefits specifically may need to adjust their fat-to-protein ratio, often targeting around 75 percent fat intake.
  • Addressing fears about fiber and gut health, Potter points to a case series of ten patients with Crohn’s disease and ulcerative colitis who achieved significant symptom improvement on carnivore ketogenic diets, some sustained for over five years, challenging assumptions that fiber is universally necessary for gut health.
  • On cancer risk and cholesterol concerns, both speakers argue that colorectal cancer associations with red meat are often confounded by processing methods and cooking techniques, and that LDL changes should be tracked with tools like coronary artery calcium scans rather than used as a blanket reason to reject the diet.
  • For vegan ketogenic diets, Potter stresses that B12 supplementation is non-negotiable due to the risk of severe neurological damage, while also recommending attention to iron, iodine, omega-3s, folate for women of childbearing age, and careful protein tracking using combinations of legumes, tofu, and hemp to meet needs despite plant protein’s lower bioavailability.

Transcript

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