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Siim Land Podcast

#403 Supplements I Stopped Taking, Optimal Body Fat Percentage - Q&A

May 30, 2024
Topics include supplements stopped, optimal body fat percentage, whey isolate vs concentrate, glycine before workouts, benefits of donating blood, impact of lifting on waist size, eating eggs pre-workout, beef liver for ferritin, and advice for gum disease prevention.
33:35

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Quick takeaways

  • Spermidine supplements lack strong evidence for longevity benefits, recommending dietary sources like wheat germ instead.
  • Calcium alpha-ketoglutarate shows potential health benefits, but further research is needed to confirm its longevity effects.

Deep dives

Stopped Supplements Review: Spermidine

Spermidine, a supplement popular for its touted benefits on autophagy and longevity, lacks solid evidence for its efficacy. Human trials have not shown significant longevity benefits from spermidine supplements, with studies indicating minimal impact on blood levels and cognitive function. Instead of supplements, focusing on dietary sources like wheat germ, cheeses, and vegetables is suggested for better spermidine intake.

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