L Carnitine Explained: What This Amino Acid Does for Your Body L Carnitine Benefits for Fat Burning and How to Use ICONFIT Benefits of L Carnitine for PCOS Landys Chemist What is carnitine? Carnitine is produced in the body from the amino acid lysine and naturally occurs in some foods. It supports energy metabolism and muscle function, which are important factors in Health Benefits Carnitine Infographic Including Deficiency Stock Vector (Royalty Free) 364114724 Shutterstock