L carnitine supplementation may prevent pregnancy related declines 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: Benefits, Side Effects, And Dosage, Per Dietitians Application of L carnitine as nutritional supplement in veterinary medicine. Semantic Scholar 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 Role of L carnitine in female infertility Reproductive Biology and Endocrinology Springer Nature Link