The benefits of L Carnitine in sports SPONSER SPORT FOOD AG Carnitine in Mitochondrial Fatty Acid Transport and Oxidation Encyclopedia MDPI Hepatic Carnitine Palmitoyltransferase (CPT) System: Gateway to Fatty Acid Oxidation Long chain fatty acids cannot directly cross the inner mitochondrial membrane. The hepatic carnitine shuttle system, led by CPT I and From brain to muscle, L Carnitine plays a key role in energy metabolism, endurance, and recovery by supporting efficient fat to energy conversion. Meet L Carnitine a naturally occurring amino acid that plays a key role in helping the body convert fat into usable energy. It works by transporting fatty acids into your cells to