L Carnitine: Benefits, Side Effects, FAQ, Sources, and Dosage PDF) Is L Carnitine the Link between Red Meat and Heart Disease? 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 L carnitine Supplementation Significantly Improves Lipid Profiles Natural Health Research