Creatine is a naturally occurring compound found in small amounts in certain foods and synthesized in the body. It's primarily stored in skeletal muscle, where it helps produce adenosine triphosphate (ATP), the energy currency of cells. This boost in energy can enhance physical performance, particularly during high-intensity exercise or activities that require quick bursts of effort. Many athletes and fitness enthusiasts use creatine supplements to improve strength, increase muscle mass, and enhance recovery.