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 Carnitine Shuttle Purpose and Mechanism The role of carnitine in normal and altered fatty acid metabolism ScienceDirect The role of L carnitine in fatty acid metabolism in mitochondria (Wang Download Scientific Diagram From brain to muscle, L Carnitine plays a key role in energy metabolism, endurance, and recovery by supporting efficient fat to energy conversion. A schematic diagram of the metabolic roles of carnitine in skeletal Download Scientific Diagram