Is creatine actually useful for healthy aging — not just the gym?

Creatine is best known as a gym supplement, but researchers are finding it may have broader benefits for healthy aging — including preserving muscle mass, supporting brain function, and improving bone density as we get older. Multiple human trials support some of these effects, though research is still building on the longevity-specific questions.

Where it stands Good human evidence for muscle and some cognitive benefits; broader aging effects still emerging