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 Effect of Acute and Chronic Oral l Carnitine Supplementation on Exercise Performance Based on the Exercise Intensity: A Systematic Review L Carnitine L Tartrate: 8 Key Benefits Dr. Lam l Carnitine Supplementation in Recovery after Exercise Should I Take Acetyl L Carnitine or L Carnitine HealthAid