L Carnitine: Benefits, Side Effects, And Dosage, Per Dietitians 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 vs L Carnitine: 4 Key Differences Momentous L Carnitine Metabolic Health Supplement Metagenics PCOS Nutrition Center L Carnitine (120 Capsules) PCOS Nutrition Center Nature's Bounty L Carnitine 500 Mg 30 Tablets Nahdi