Creatine

settled creatine — well-established; the public is catching up to the breadth of the evidence

Evidence by outcome

strengthgrade Ahigh certainty— reliable improvement in strength/power with resistance training

cognitiongrade Bmoderate certainty— benefit to cognition, clearest under sleep deprivation or stress

People say · Evidence shows

“Creatine only helps muscles, not the brain”

behindmodestfolk

What changed

C → B (2026-05-02) — New RCTs on cognitive performance (notably under sleep deprivation) strengthened the grade.

Compare

More

sources: PMID:00000003 · PMID:00000004