L Carnitine Tablets for Energy Support Nature's Bounty Levocarnitine, commonly known as L Carnitine, is a naturally occurring compound that the body produces from the amino acids lysine and methionine. It plays a critical role in energy production by transporting fatty Congestive Heart Failure: Supplements for Heart Health L Carnitine Supplementation in the Diabetic Heart ABC Cardiol Revisiting the Role of Carnitine in Heart Disease Through the Lens of the Gut Microbiota