What even is carnitine?? Carnitine is a "conditionally" essential amino acid that becomes essential during pregnancy. What does this mean? You must get carnitine through food! The best sources are red L Carnitine (500mg x 120 Capsules) Phil Richards Nutrition Lab L Carnitine: Benefits, Uses, Side Effects, and More L carnitine is an amino acid that is produced in your body that helps the body turn fat into energy. Carnitine is found in nearly all cells of the body and researchers have L carnitine supplementation may prevent pregnancy related declines Carnitine status of pregnant women: effect of carnitine supplementation and correlation between iron status and plasma carnitine concentration European Journal of Clinical Nutrition