Revisiting the Role of Carnitine in Heart Disease Through the Lens of the Gut Microbiota L Carnitine Premature Mortality Life Extension L Carnitine Carnitine Deficiency: What Is It, Causes, Symptoms, and More Osmosis 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 tartrate supplementation in the fight against infectious disease