Siim Land Podcast #483 Q&A Training fast twitch muscle fibers instead of lifting weights, How much protein for longevity, My all out supplement stack
Dec 13, 2025
Explore the complexities of elite sports and their paradoxical health effects. Discover the optimal protein intake for longevity and the debate over methionine's impact on lifespan. Dive into the fascinating world of topical versus oral supplement delivery, including skin benefits. Learn about maintaining youthful testosterone levels and the importance of cycling supplements. Siim shares effective red light therapy practices and strategies to combat air pollution, while also revealing his ultimate supplement stack for health.
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Elite Performance Often Requires Tradeoffs
- Elite-level sports often require sacrifices that can harm physical and mental health despite high fitness levels.
- Most people can safely improve fitness without reaching harmful elite extremes and gain large longevity benefits.
Use A Moderate Upper Protein Limit
- Aim for ~1.6 g/kg protein as an upper threshold to maximize muscle growth without unnecessary excess.
- Consider 1.2–1.5 g/kg for many people and add glycine if consuming high methionine protein sources.
Longevity Escape Velocity Is Theoretical Now
- Reaching longevity escape velocity is appealing but currently unlikely this century; basics remain most impactful.
- Exercise, diet, sleep and a few supplements currently offer the best chance to extend healthy lifespan.