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Heart Doc VIP with Dr. Joel Kahn

Episode 430: Are Vegans Getting Enough Protein? A New Look at Leucine, Lysine, and More

Apr 25, 2025
A new study explores whether vegans are getting enough leucine and lysine, with no health issues found in participants. Dr. Kahn highlights top plant-based sources like beans and quinoa while addressing the ongoing protein debate. He also shares insights from recent studies on KETO-CT, the benefits of adding more fruits and veggies to diets, and vitamin D's role in cancer prevention. Plus, discover how both vegan and omnivorous diets can support muscle protein synthesis.
26:05

Podcast summary created with Snipd AI

Quick takeaways

  • A recent New Zealand study found that vegans consume adequate leucine and lysine without health issues, advancing the plant-based protein debate.
  • Research indicates that plant-based diets promote longevity and better health outcomes compared to diets high in animal protein, emphasizing their environmental benefits.

Deep dives

KetoCT Study Controversy

A recent study referred to as the KetoCT study raised a lot of debates regarding high cholesterol levels and heart health, particularly among individuals identified as lean mass hyper-responders. Despite claiming that high LDL cholesterol and ApoB levels were not linked to atherosclerosis, the validity of the study has come under scrutiny due to the lack of transparency about the findings regarding soft plaque development. Critics have highlighted that essential results were omitted from the published paper, leading to accusations against the authors for misrepresenting their conclusions. As a result, there has been a notable silence from proponents of high-fat diets in light of this unexpected backlash against the study’s perceived conclusions.

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