Role of carnitine in disease Nutrition & Metabolism Springer Nature Link L Carnitine Treatment in Patients with Mild Diastolic Heart Failure Is Associated with Improvement in Diastolic Function and Symptoms Semantic Scholar Safety and efficacy of L carnitine supplementation in improving cardiac function of hemodialysis patients: a systematic review and meta analysis International Urology and Nephrology Springer Nature Link Effects of levocarnitine on cardiac function, urinary albumin, hs CRP, BNP, and troponin in patients with coronary heart disease and heart failure ScienceDirect New study links L carnitine in red meat to heart disease Harvard Health