Vital Nutrients Carnitine 500mg supports cardiovascular health, and essential to fatty acid transport. Carnitine is made in the body from the amino acids lysine and methionine. It is often called an amino acid because of its chemical makeup, however it is a vitamin-like nutrient, related in structure to the B vitamins. It plays an essential role in transporting fatty acids into the muscles for energy, and is needed to transport these substances into the heart muscle. Recommended use: Take 1 to 2 capsules 2-3 times daily, or as directed by a healthcare professional.