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 Functional differences between l and d carnitine in metabolic regulation evaluated using a low carnitine Nile tilapia model British Journal of Nutrition Cambridge Core Effects and mechanism of L Carnitine on weight loss Carnitine: the claims and why it may not work The role of carnitine in normal and altered fatty acid metabolism ScienceDirect Frontiers Role of Carnitine in Non alcoholic Fatty Liver Disease and Other Related Diseases: An Update