The TriDoc Podcast, triathlon and health in one place · Dr. Jeff Sankoff

Ep. 190: Protein Power: The Science of Post-Workout Recovery + diving into methylene blue

·1 hr·3 clips

Jeff warns that methylene blue has a hormetic dose-response curve and can turn oxidative at higher doses.

1. The TriDoc Podcast episode centers on protein recovery science for endurance athletes and a medical mailbag discussion of methylene blue. 2. Host Jeff Zankoff and co-host Juliet Hockman guide the mailbag, while Adra Labs founders Matthew Schuster and Eric Zaltas anchor the protein interview because they are building products around endurance nutrition. 3. The episode asks whether methylene blue has evidence for athlete recovery and whether endurance athletes need a protein target higher than old carb-focused advice. 4. Jeff says methylene blue is a commercial dye used in textiles and some medical settings, then explains why functional medicine practitioners are promoting it for endurance athletes. 5. Juliet and Jeff describe methylene blue as a powerful electron donor and connect that chemistry to claims about cellular energy, oxygen use, and oxidative stress reduction. 6. Jeff explains methylene blue's only approved medical use in methemoglobinemia, where iron in hemoglobin shifts from Fe2+ to Fe3+ and can no longer carry oxygen. 7. The hosts say methylene blue is given intravenously for that emergency use, and they note that people with G6PD deficiency should not receive it. 8. Jeff contrasts that approved use with the supplement market, saying the athlete claims were traced to advertising rather than studies in people. 9. He cites a Harvard Health Publishing article as a list of theories rather than proof, including possible effects on cellular aging and neurologic disease. 10. Jeff and Juliet discuss a 2025 rat study, 'intranasal methylene blue administration confers neuroprotection in rats subjected to exhaustive exercise training,' where rats swam with 3% body weight attached to their tails. 11. The rats that received methylene blue appeared to handle a maze better after the exhausting swim protocol, but Jeff says that result does not translate into human performance evidence. 12. He adds that human studies in sepsis and stroke have not shown the protective effects that the animal work suggests. 13. Jeff also cites a dog treadmill study, 'effective methylene blue on cardiac output response to exercise in dog,' and says the chemical markers changed without an improvement in cardiac output. 14. He then explains the hormetic dose-response curve, with a tipping point around 0.5 milligrams per kilogram where methylene blue can switch from reduction to oxidative stress. 15. Jeff says the concern is compounded supplements: the dose may be unknown, the benefits unproven, and the risk of methemoglobinemia real if too much is taken. 16. Juliet and Jeff close the mailbag by saying the supplement can be bought cheaply online, but availability does not equal evidence or safety. 17. The conversation between Jeff and Juliet is conversational and skeptical, with back-and-forth corrections, practical examples, and repeated emphasis on evidence. 18. The Adra Labs interview is business-focused but science-heavy, with Eric Zaltas explaining product development, research translation, and why a standalone company needed Matt Schuster's business expertise. 19. Listeners interested in endurance nutrition, supplement skepticism, and triathlon recovery science would get the most from this episode. 20. Listeners wanting a narrow race recap or a single-topic deep dive might skip it.

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