The Metabolic Classroom with Dr. Ben Bikman cover image

The Metabolic Classroom with Dr. Ben Bikman

Rapamycin and Longevity: What the Research Really Says with Dr. Ben Bikman

Sep 12, 2024
Dive into the fascinating world of rapamycin and its controversial relationship with longevity. Discover how the mTOR protein complex influences aging and the conflicting evidence between animal studies and human health. Learn about the potential downsides of rapamycin, including its immunosuppressive effects and impact on muscle maintenance. Explore the critical balance between dietary protein intake and lifespan, while uncovering the vital interplay between insulin levels and longevity.
32:00

Podcast summary created with Snipd AI

Quick takeaways

  • Dr. Bikman emphasizes that while rapamycin may promote longevity through mTOR inhibition, its effects on human health are largely unverified and potentially harmful, particularly concerning muscle maintenance.
  • The podcast debunks the notion that protein restriction enhances lifespan, highlighting evidence that higher protein intake, especially from animal sources, is associated with reduced mortality in older adults.

Deep dives

Understanding Rapamycin and mTOR

Rapamycin is closely associated with the protein mTOR (mammalian target of rapamycin), which plays a significant role in cellular growth and metabolism. The discussion around rapamycin often focuses on its potential to extend lifespan through mTOR inhibition, stimulating autophagy— the process by which cells recycle and renew themselves. Although animal studies indicate that rapamycin can extend life by up to 60%, the translation of these findings to humans remains highly uncertain and lacks direct evidence. The prevalent view in longevity research that restricting mTOR via rapamycin promotes a longer life may overlook critical aspects of mTOR's role in maintaining muscle mass and overall health.

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