The Human Upgrade

The Secret Peptides and Underground Compounds Doctors Won’t Talk About : 1413

The Human Upgrade with Dylan Gemelli 2026-02-10

Summary

Dave Asprey sits down with Dylan Gemelli for a wide-ranging conversation about peptides, research chemicals, SARMs, and the gray zone between medicine, performance enhancement, and personal responsibility. They break down what research chemicals actually are, why peptides fall into that category, and how legality often has little to do with biological risk or effectiveness. The discussion covers compounds like MK-677 and its effects on growth hormone signaling, the difference between muscle and strength, testosterone optimization, and oral testosterone options like Kyzatrex.

Dave shares his personal experience gaining 29 pounds of muscle in six weeks, reversing arterial plaque through unconventional methods, and rebuilding his health using underground tools. The episode also covers diet failures including negative experiences with veganism, the shift toward higher-fat and higher-protein eating, and why long-duration cardio may not be optimal for longevity compared to strength training and nervous system health.

Key Points

  • MK-677 stimulates growth hormone naturally by mimicking ghrelin and can outperform exogenous HGH in certain situations for muscle recovery and body composition
  • SARMs differ from steroids by targeting specific tissues, reducing some systemic side effects, but still carry risks and are classified as research chemicals
  • Strength and neurological drive matter more than muscle size alone for longevity and real-world function
  • Low-dose nicotine (separated from tobacco) can support brain optimization and cognitive performance
  • Shifting to higher-fat, higher-protein diets can radically improve energy, body composition, and mental clarity
  • Arterial plaque can potentially be addressed through unconventional biohacking protocols including targeted supplementation
  • Medical autonomy and self-education are essential because modern healthcare systems often discourage self-experimentation

Key Moments

Nicotine

Tobacco is not nicotine: every substance including water has benefits and downsides

People incorrectly equate coffee with caffeine and tobacco with nicotine. Every substance has a risk-benefit profile. Putting them in artificial "good" or "bad" buckets is simplistic and misleading.

"We have these weird conversations where people think coffee and caffeine are the same thing. They're not. They think tobacco and nicotine are the same thing. They're not."

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