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 Carnitine Molecule of the Month September 2003 L Carnitine (() Carnitine, Levocarnitine, R Carnitine, CAS Number: 541 15 1) Cayman Chemical Carnitine and acetyl L carnitine Neuroneeds Carnitine Deficiency: What Is It, Causes, Symptoms, and More Osmosis