Acetyl L carnitine is a white crystalline solid that resembles snow. It has a mild odor similar to vinegar. It is a metabolite of L carnitine, derived from the amino acid L lysine in a series PDF) [L carnitine treatment and fish odor syndrome: an unwaited adverse effect]. Carnitine_tekst Molecule of the Month September 2003 Pharmacokinetics of L Carnitine : Clinical Pharmacokinetics Stabilizing the enzyme in fish odor syndrome 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