L Carnitine Tartrate Amino Acid 1,500 mg Benevolent Nourishment 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 L Carnitine L tartrate L carnitine Tartrate in 1000 mg Capsules L carnitine 500 mg food supplement from vitaworld