L Carnitine Linus Pauling Institute Oregon State University 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 Carnitine: Its Crucial Role in Metabolic Health and Cardiovascular Function L Carnitine: Benefits, Side Effects, FAQ, Sources, and Dosage NutraKey Health Acetyl L Carnitine Carnitine: Requirements, food sources, benefits, and risks