Carnitine

Carnitine is a naturally occurring compound made from the amino acid lysine, that helps the body turn fat into energy. Its main job is to transport long-chain fatty acids into the mitochondria, which are the parts of cells that produce energy, so those fats can be burned for fuel. Carnitine is found in almost all cells of the body, especially in tissues with high energy demands like the heart and muscles, which is why it is often talked about in relation to energy, metabolism, endurance, and recovery.