The benefits of L Carnitine in sports SPONSER SPORT FOOD AG 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 Activation and Transportation of Fatty Acids to the Mitochondria via the Carnitine Shuttle with Animation Animations PharmaXChange.info 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 L Carnitine Linus Pauling Institute Oregon State University Carnitine Shuttle an overview ScienceDirect Topics