Creatine might be doing more than just building muscle—it could be fueling your brain too.

Other research shows that creatine supplements can indeed raise creatine levels in the brain, even in people with Alzheimer’s, and that this might help with thinking speed and problem-solving—especially when tired. Muscle size also tends to increase with creatine, even at lower doses than 20 grams, so the reported gains in thigh size aren’t out of line. But the claim about handgrip strength? No studies were found to back it up directly. And while some studies link higher creatine to better memory, others found no cognitive boost from supplements, so it’s not a guaranteed upgrade for the brain. The pilot study mentioned in the post sounds promising, but it’s still early days.

Creatine might be quietly helping both your muscles and your mind, but we’re still figuring out exactly how and for whom.