Benefits of Acetyl L Carnitine Simply Supplements Frontiers L carnitine: new perspectives on the management of preterm infants Did you know L carnitine, a vital amino acid, is naturally produced by your body and found in various foods? While acetyl L carnitine (ALCAR) can be a beneficial supplement for some, most people get Effects of Long term Acetyl L carnitine Administration in Rats: I. Increased Dopamine Output in Mesocorticolimbic Areas and Protection toward Acute Stress Exposure Neuropsychopharmacology