Carnitine: the claims and why it may not work L Arginine Supplementation: Splitting Fact From Fiction Diet vs Disease 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 Carbamide Forte L Arginine 1000mg Supplement Per Serving 120 Veg Capsules & L Carnitine L Tartrate 1000mg Capsules for Men & Women 120 Veg