Carnitine Deficiency: What Is It, Causes, Symptoms, and More Osmosis L Carnitine Vitamin Supplement for Energy and Metabolism Boost Efficacy of L carnitine supplementation for improving lean body mass and physical function in patients on hemodialysis: a randomized controlled trial European Journal of Clinical Nutrition Most people talk about carnitine like it is one supplement. It is not. Acetyl L carnitine and L carnitine L tartrate do different jobs, and picking the wrong one for the wrong goal is where people Impact of hemodialysis on endogenous plasma and muscle carnitine levels in patients with end stage renal disease Kidney International