L Lysine Carnitine Precursor for Muscles & Physical Activity When to Take L Carnitine for Weight Loss & Maximize Results L Carnitine Is It Good or Bad for your Heart? Hammer Nutrition Did you know L carnitine, a vital amino acid, is naturally produced by your body and found in various foods? While acetyl L carnitine (ALCAR) can be a beneficial supplement for some, most people get The Pathway of Carnitine Biosynthesis with Proposed Involvement of VC Download Scientific Diagram 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