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 L carnitine buy in the official online store Progress Nutrition L Carnitine Tartrate Vitazan Professional Carnitine status of pregnant women: effect of carnitine supplementation and correlation between iron status and plasma carnitine concentration European Journal of Clinical Nutrition