A large body of scientific evidence points to the positive effects of dietary supplementation of Acetyl L-Carnitine (Acetyl L-Carnitine). Acetyl L-Carnitine is the principal acetyl ester of L-Carnitine (LC), and it plays an essential role in intermediary metabolism, acting as a donor of acetyl groups and facilitating the transfer of fatty acids from cytosol to mitochondria during beta-oxidation. This means it will help you burn fat.