L carnitine for metabolism Lifehack Carnitine Metabolite of the month biocrates life sciences gmbh L Carnitine vs L Arginine: Understanding Their Differences and Benefit Fitness Health 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. Systemic regulation of L carnitine in nutritional metabolism in zebrafish, Danio rerio Scientific Reports Didn't another study show carnitine was good for the heart?