Creatine is a molecule produced in the body. It stores high-energy phosphate groups in the form of phosphocreatine. Phosphocreatine releases energy to aid cellular function during stress. This effect causes strength increases after creatinesupplementation, and can also benefit the brain, bones, muscles, and liver.
Creatine can be found in some foods, mostly meat, eggs, and fish. Creatine supplementation has a variety of health benefits and has neuroprotective and cardioprotective properties. It is often used by athletes to increase both power output and lean mass.