#097 The Science of Protein and Its Role in Longevity, Cancer, Aging, and Building Muscle

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Protein is far more than a building block for muscle—it’s essential for metabolic health, insulin sensitivity, and preventing conditions like type 2 diabetes and sarcopenia. But how much do we truly need? And could too much protein, especially from meat, actually be harmful? This episode challenges the conventional RDA of 0.8 g/kg, presenting research that supports higher intakes of 1.2–2 g/kg for maintaining muscle, improving body composition, and promoting longevity. We also confront myths around protein timing and the so-called "anabolic window.” Lastly, we address concerns about protein’s links to cancer, heart disease, and kidney function, showing how exercise can redirect growth factors like IGF-1 to promote repair while mitigating risks. 

Timestamps:

• (00:00) Download my “How to Train” guide
• (00:51) Introduction
• (03:32) Why muscle matters
• (05:57) Why do we lose muscle?
• (07:31) How to negate anabolic resistance
• (08:24) Why it's never too late to build muscle
• (09:05) Requirements for overweight & obese individuals
• (09:52) Exposing the flaws of the RDA
• (11:12) Optimal intake when resistance training
• (11:55) What to do when losing weight
• (13:08) Does protein harm healthy kidneys?
• (14:59) How important is distribution?
• (17:11) Debunking the "anabolic window"
• (18:48) Benefits of pre-sleep intake
• (20:20) Timing & distribution takeaways
• (21:01) What are the best sources?
• (24:05) Animal vs. plant protein
• (26:27) Protein supplements (whey, casein, & collagen)
• (27:57) Does high intake accelerate aging?
• (31:32) Why exercise changes the story
• (34:02) What we can learn from athletes
• (34:36) Does high intake accelerate atherosclerosis?
• (36:51) 8 key takeaways

Show notes and transcript are available by clicking here

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