L Carnitine Tablets for Energy Support Nature's Bounty 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 Potential Adverse Effects of L Carnitine Marnys Do Pregnant Women Need More Carnitine? Nordic Naturals 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 Hardlabs L Carnitine 3000mg Liquid Fat Burner hardlabs