Transports Fatty Acids Boosts Cellular Energy Carnipure Non-GMO A Dietary Supplement Vegetarian/Vegan Kosher How it works: L-Carnitine is a non-essential amino acid that is abundant in heart, muscle and liver tissues. It helps to maintain metabolic health by facilitating the transfer of long-chain fatty acids across the mitochondrial membrane for cellular energy production. In addition, it thereby assists the body in using fat for energy. It naturally occurs in red meat and other animal source foods, but some people may have an increased need for dietary L-Carnitine due to high fat and vegetarian diets. Clinical studies indicate that L-Carnitine may promote exercise performance and recovery.