L Carnitine vs Acetyl L Carnitine: Key Differences 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, L Carnitine: Benefits, Side Effects, And Dosage, Per Dietitians Serum L Carnitine Levels Are Associated With First Stroke in Chinese Adults With Hypertension Stroke L Carnitine: Benefits, Side Effects, And Dosage, Per Dietitians