L Carnitine is Underrated. New Meta Review Reminds Us Why. PDF] Acetyl L Carnitine: Metabolism and Applications in Clinical Practice Semantic Scholar The Role of l Carnitine in Mitochondria, Prevention of Metabolic Inflexibility and Disease Initiation 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 Hypothalamic carnitine metabolism integrates nutrient and hormonal feedback to regulate energy homeostasis ScienceDirect