PCOS Nutrition Center L Carnitine (120 Capsules) Acetyl L Carnitine: Benefits and Side Effects Gene Food L carnitine is a naturally occurring amino acid structure that is made in the human brain, liver, and kidneys. L carnitine plays a critical role in energy production, as it converts fat into energy. Acetyl L CARNITINE 1500mg Fat Loss Metabolism Activator Energy, 120 Veg Capsules 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 The bright and the dark sides of L carnitine supplementation: a systematic review Journal of the International Society of Sports Nutrition Springer Nature Link