The Role of l Carnitine in Mitochondria, Prevention of Metabolic Inflexibility and Disease Initiation Altered carnitine acylcarnitine profiles in levothyroxine treated congenital hypothyroid patients with fatigue: An LC MS MS based study from Bangladesh PLOS One L carnitine reduces hyperthyroidism symptoms The most common cause of hypothyroidism worldwide is insufficient intake of iodine, a mineral found in iodized salt and some foods (such as seafood and dairy) that is needed for production of Successive thyroid storms treated with L carnitine and low doses of Methimazole The American Journal of Medicine