Top L Carnitine Supplements GNC Acetyl L Carnitine: Benefits and Side Effects Gene Food SuperSmart Acetyl L Carnitine Arginate 1000mg per Day L Carnitine & L Arginine Complex ALCAR Supplement Non GMO 120 Vegetarian Capsules Does L Carnitine Work for Weight Loss? L Carnitine is often marketed as a fat burner, but most people dont realize that oral and injectable L Carnitine are not the same..Oral L Carnitine has poor absorption (only 20% bioavailability),