Heart Doc VIP with Dr. Joel Kahn

Episode 507: The Nuance of How Much Dietary Protein for Optimal Health

July 28, 2026·22 min
Episode Description from the Publisher

This week, Dr. Kahn discusses new data from the amazing Valter Longo, PhD, and his colleagues regarding optimizing diet for both longevity and strong muscles. In a new publication, Dr. Longo used mouse models to show that animals fed a Longevity Diet, as described in his book, lived longer. However, when moderate amounts of methionine, an amino acid, were included in the diet, frailty was avoided. He then analyzed a dataset of 200,000 health professionals in the United States and found that those consuming the highest amounts of animal protein had double the risk of type 2 diabetes, as well as higher rates of obesity and hypertension, compared with those consuming more plant protein. You can learn more about Dr. Longo's L-Protein powder (with methionine) at prolonlife.com/drkahn. Other topics include PCOS and heart disease, aortic dissection, artificial sweeteners and memory loss, optimal medical treatment for high cholesterol, GLP-1 agonist use and hair loss, TMAO and the risk of atrial fibrillation, statins and better cognitive function in women, and how plant mitochondria may improve our own cellular function. Amazing.  Thanks to the Fresh Pressed Olive Oil Club. Learn more at getfreshDrKahn.com.  Dr. Kahn's new book can be found here: amazon.com/dp/B0HBGJ4J59

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