Frontiers Metabolic Dysfunctions in Amyotrophic Lateral Sclerosis Pathogenesis and Potential Metabolic Treatments Acetyl L Carnitine 1500mg, Brain Function, Fat Metabolism, Energy Production eBay L carnitine for metabolism Lifehack Acetyl L Carnitine is more thought of as a fat burner. It's actually powerful tool for athletes looking to improve endurance, energy, and mental performance. Here's how you can integrate it into your routine for