Fat burner CARNI COMPLEX Scitec 60 caps L Carnitine Supplement Bodybuilding.com WHYZ Acetyl L Carnitine Powder 125g Pure ALCAR for Cognitive Support Cardiovascular Health & Stamina 250 Servings Buy Now with Express International Delivery GoSupps.com Injectable L Carnitine for Slimming: Does It Really Work? National Medical Resources Inc 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? Some people report a fishy smell after supplementing with L carnitine. This happens because certain gut bacteria convert carnitine to trimethylamine, a malodorous compound found in rotting fish.