Creatine is a natural substance found in small amounts in certain foods and produced by the body. It is primarily stored in the muscles and used as a quick source of energy during high-intensity exercise. Many athletes and fitness enthusiasts take creatine supplements to enhance their performance, increase muscle mass, and improve recovery times. Research shows that creatine can be effective for activities like sprinting and weightlifting. It is generally considered safe for most people when taken in recommended doses. However, individuals with kidney issues or other health concerns should consult a healthcare professional before using creatine supplements.