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 for Erectile Dysfunction: What the Evidence Shows and Practical Considerations l carnitine and l acetylcarnitine supplementation for idiopathic male infertility in: Reproduction and Fertility Volume 1 Issue 1 (2020) L Carnitine Benefits for Male Erectile Dysfunction