The Role of l Carnitine in Mitochondria, Prevention of Metabolic Inflexibility and Disease Initiation The Role of l Carnitine in Mitochondria, Prevention of Metabolic Inflexibility and Disease Initiation When To Take L Carnitine to Maximise Your Shredding and Beyond BSc Supplements The effect of l carnitine supplementation on mortality and clinical outcomes in ventilator dependent critically ill patients with obesity and COVID 19: Protocol for a randomized double blind placebo controlled trial ScienceDirect If you are like a lot of people, you may have never heard of carnitine but this important nutrient is critical for our body's ability to optimally burn fat required for energy.