L Carnitine L Tartrate: 8 Key Benefits Dr. Lam l carnitine, a friend or foe for cardiovascular disease? A Mendelian randomization study BMC Medicine Springer Nature Link Effects of l carnitine supplementation on blood pressure: a systematic review and meta analysis of randomized controlled trials Journal of Human Hypertension The Effects of L Carnitine Supplementation on Blood Pressure in Adults: A Systematic Review and Dose response Meta analysis Clinical Therapeutics