Acetyl L Carnitine: Benefits and Side Effects Gene Food Supplements and chronic pain: What does the research say? Some studies suggest possible benefits for: Acetyl L Carnitine (energy for cells; studied in diabetic nerve pain) Alpha Lipoic Acid (antioxidant; may ease nerve pain, Acetyl L Carnitine (ALCAR) Supplement for Horses Mad Barn L carnitine for metabolism Lifehack Is L Carnitine safe for athletes at doses up to 6000 mg day? Consensus L Carnitine injection is recommended at 1 ampule every 2 3 days for best results. The L Carnitine is taken intravenously either by normal injection or using a butterfly needle. After taking this L Carnitine, you