Taking L carnitine, will it improve endurance and recovery? Role of L carnitine in exercise training: Anti inflammatory, antioxidant, and metabolic interactions ScienceDirect Early research into L carnitine was often cited as underwhelming, showing negligible changes in muscle carnitine content and fat loss outcomes. However, these findings may have been limited by a short study window L Carnitine Benefits, Uses, Dosage, Foods, Side Effects Dr. Axe L Carnitine Dosage for Weight Loss: A Guide The Science of Good Health The Benefits (and Limitations) of L Carnitine for Fat Loss