In this episode, Ben and Giacomo are joined by Dr. Michael Greger to discuss one of the most debated topics in nutrition and fitness: protein intake. The conversation covers how much protein we actually need, the potential longevity tradeoffs of excessive protein consumption, and why plant protein may offer unique advantages compared to animal protein.

Dr. Greger explains the role of methionine restriction, IGF-1, and mTOR in aging, while also emphasizing the importance of resistance training and muscle mass for long-term health. The group discusses fall prevention, balance training, sarcopenia, insulin sensitivity, and the challenges of communicating science in today’s attention economy.

The episode wraps up with practical nutrition advice, thoughts on protein powders versus whole foods, and Dr. Greger’s enthusiasm for broccoli sprouts and sulforaphane-rich foods.

Dr. Greger's Bio:

Dr. Michael Greger is a physician, internationally recognized nutrition speaker, and founding Fellow of the American College of Lifestyle Medicine. He runs the nonprofit NutritionFacts.org, which provides free evidence-based nutrition videos and articles. A graduate of Cornell University and Tufts University School of Medicine, Dr. Greger has lectured at the World Bank, testified before Congress, and served as an expert witness in Oprah Winfrey’s “meat defamation” trial. He is the bestselling author of How Not to Die, How Not to Diet, and How Not to Age. All proceeds from his books and speaking engagements are donated to charity.

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