What Is Creatine?
Creatine is a natural substance that turns into creatine phosphate in the body. Creatine phosphate helps make a substance called adenosine triphosphate (ATP). ATP provides the energy for muscle contractions.

The body produces some of the creatine it uses. It also comes from protein-rich foods such as meat or fish.

How Is Creatine Used?
Back in the 1970s, scientists discovered that taking creatine in supplement form might enhance physical performance. In the 1990s, athletes started to catch on, and creatine became a popular sports supplement.

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