Creatine is an amino acid derivative primarily found in meat and fish. The body produces it based on its needs, with 95% of creatine located in skeletal muscles and synthesized in the kidneys, liver, and pancreas.

Creatine is widely used in the sports world (bodybuilding, fitness) because it enhances physical performance during successive bouts of very intense, short-duration exercises. This beneficial effect can be achieved with a daily intake of 3g of creatine.