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 Linus Pauling Institute Oregon State University Clomiphene citrate (CC) plus L Carnitine improves clinical pregnancy rate along with glycemic status and lipid profile in clomiphene resistant polycystic ovary syndrome patients: A triple blind randomized controlled clinical trial ScienceDirect The significant role of carnitine and fatty acids during pregnancy, lactation and perinatal period. Nutritional support in specific groups of pregnant women ScienceDirect Plasma concentrations of free, esterified and total L carnitine at day Download Table