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 L Carnitine: Benefits, Side Effects, FAQ, Sources, and Dosage L Carnitine Linus Pauling Institute Oregon State University NOW Foods Acetyl L Carnitine, Cognitive Support, Vegetarian Supplement, 500 mg, 100 Capsules Walmart.com Does L Carnitine Work for Fat Loss? A Dietitian Explains