Targeting Skeletal Muscle Dysfunction With L Carnitine for the Treatment of Patients With Chronic Obstructive Pulmonary Disease In Vivo Carnitine: Genetic Variants Affecting Mitochondrial Energy and Health l carnitine l tartrate Liv Hospital Are these Supplements Hurting your Thyroid? The Role of l Carnitine in Mitochondria, Prevention of Metabolic Inflexibility and Disease Initiation The supplement secret for hyperthyroidism? , When dealing with hyperthyroidism or Graves disease, L carnitine can be a total game changer. It helps block the entry of thyroid hormone into the cell