L Carnitine Benefits, Uses, Dosage, Foods, Side Effects Dr. Axe l carnitine: Nutrition, pathology, and health benefits ScienceDirect L Carnitine Benefits, Uses, Dosage, Foods, Side Effects Dr. Axe 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 The Role of l Carnitine in Mitochondria, Prevention of Metabolic Inflexibility and Disease Initiation L Carnitine The Wonder Fat Loss Miracle or Just Marketing Hype? FIT Asia Advancing Fitness Education