Bryan Johnson· Author
So some people like, for example, in our longevity mix it's 2.5 grams a day and then uh many people do much higher doses, especially when you're trying when you're trying to increase muscle mass.
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The headline is broadly defensible, but the qualifications matter. Effect sizes vary by population, the strongest claims rest on shorter trials, and credible voices push back on how it's typically framed.
So some people like, for example, in our longevity mix it's 2.5 grams a day and then uh many people do much higher doses, especially when you're trying when you're trying to increase muscle mass.
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Native comments, Twitter mentions, and Reddit threads about this claim — surfaced together so the conversation isn't fragmented across platforms.
I've been recommending this to patients for 6 months now. The big shift is patients actually do it because the explanation is concrete.
Same in nutrition counseling. The before/after framing helps.
Tracking with a CGM on top of this for 3 months. Variability dropped quickly and stayed dropped.
Worth noting the 0.71 SMD in the Kreider meta is in trained athletes. Effect in untrained adults runs closer to 0.3 — still meaningful, but the panel should reflect that gradient.
Good catch. Could the brief surface the training-status interaction inline?
And then I've been playing around with um like with travel, increasing it because I naturally like where I live, I basically have to get up at like 3:00 in the morning to get catch a flight. So, I always get less sleep. So on travel days, I'm experimenting with higher doses of like 20 grams to see if it makes me feel more cognitively fresh.
5 g of creatine monohydrate daily improves muscle strength and lean mass in healthy adults at standard training loads.
Creatine improves cognitive performance, especially under sleep deprivation and high cognitive load.
Creatine improves cardiovascular health markers and reduces all-cause mortality risk.
Creatine supports bone-mineral density in post-menopausal women when paired with resistance training.
Women need higher creatine doses (8–10 g/day) than men to reach the same intramuscular saturation.