Ingredient Spotlight: L Carnitine Source: Biosynthesised in the body from the amino acids Lysine and Methionine, L Carnitine is a conditionally essential nutrient involved in energy metabolism and fat transport. Key Benefits Levocarnitine, commonly known as L Carnitine, is a naturally occurring compound that the body produces from the amino acids lysine and methionine. It plays a critical role in energy production by transporting fatty EuRho Vital L Carnitin + L Arginin EuRho Vital Lysine: Sources, Metabolism, Physiological Importance, and Use as a Supplement Source Naturals L Proline L Lysine, 275 mg 120 Tablets Smith's Food and Drug