A 2016 study suggested L carnitine could drop a key cardiovascular risk marker by up to 12%, which sounded promising at first., But follow up research told a more complicated story, with inconsistent The effect of (L)carnitine on weight loss in adults: a systematic review and metaanalysis of randomized controlled trials Pooyandjoo 2016 Obesity Reviews Wiley Online Library LCarnitine Liquid 3000 mg Fast Absorbing Energy Support Muscleology Muscleology Sports Nutrition l Carnitine pretreatment ameliorates heat stress induced acute kidney injury by restoring mitochondrial function of tubular cells American Journal of Physiology Renal Physiology American Physiological Society The Role of l Carnitine in Mitochondria, Prevention of Metabolic Inflexibility and Disease Initiation L Carnitine Prevents Progression of Non Alcoholic Steatohepatitis in a Mouse Model with Upregulation of Mitochondrial Pathway PLOS One