Acetyl L Carnitine Vs L Carnitine Explained Australian Sports Nutrition Reviewing L Carnitine 3000: My Day 1 Experience Liquid L Carnitine 3000: Metabolism & Energy Support Cutler Nutrition 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 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