Carnitine Deficiency: What Is It, Causes, Symptoms, and More Osmosis L Carnitine functions as a cofactor for long chain fatty acids across Download Scientific Diagram Metabolism: The carnitine shuttle and fatty acid metabolism (practice) Khan Academy 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 Functional differences between l and d carnitine in metabolic regulation evaluated using a low carnitine Nile tilapia model British Journal of Nutrition Cambridge Core Carnitine: Genetic Variants Affecting Mitochondrial Energy and Health