L Carnitine Linus Pauling Institute Oregon State University 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 250 mg. Windmill Vitamins Amazon.com: Best Naturals Acetyl L Carnitine 500 Mg & L Lysine 500 mg : Health & Household Biomedical role of L carnitine in several organ systems, cellular tissues, and COVID 19 Amino acids are a team And they work better together than alone We've got options like Amino Acid Blend, L Arginine, L Carnitine, L Lysine, and L Glutaminebut the real magic happens when they're combined