Acetyl L carnitine in chronic pain: A narrative review ScienceDirect 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 Acetyl L Carnitine (ALCAR) Supplement for Horses Mad Barn New study links L carnitine in red meat to heart disease Harvard Health L Carnitine: Benefits, Side Effects, FAQ, Sources, and Dosage