Creatine: Brain Fuel and Muscle Power Beyond the Gym

Creatine is a naturally produced molecule stored mainly in muscle that rapidly regenerates ATP to power high‑energy tissues like muscle and brain; beyond athletic performance, it may support memory, processing speed, and mood, with potential anti‑inflammatory/antioxidant benefits in clinical contexts—though effects vary by baseline levels, dosing, and individual physiology. It is not a steroid, is generally safe for healthy individuals, and stores saturate, with excess excreted as creatinine.