Acetyl L Carnitine Carnitines as Mitochondrial Modulators of Oocyte and Embryo Bioenergetics How L Carnitine Helps with Fat Metabolism Acetyl L carnitine is a form of the amino acid L carnitine, which helps turn fat into energy and occurs in the body naturally. It is thought to help slow down the ageing process Role of L carnitine in female infertility Reproductive Biology and Endocrinology Springer Nature Link Frontiers The efficacy of orally administered L carnitine in alleviating ovarian dysfunctions has laid the foundation for targeted in vivo use: a study employing self control and propensity score matching