Creatine is famous for helping you lift heavier and sprint harder, but can it help when you are not breathing at all? A new double-blind trial in trained freedivers found that a 7-day loading phase of 20 g/day boosted total work and time to exhaustion on a breath-hold cycling test. Strangely, blood lactate ended up lower in the creatine group than in placebo despite the better performance. Here is what the study did, who might benefit, and why a sample of just 20 divers means you should keep your expectations in check.
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