Carnitine Deficiency: What You Need to Know The Medical Biochemistry Page 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 PDF) Adding L Carnitine and Selenium to Methimazole in Graves' Disease: A Prospective Randomized Trial on Thyroid Markers and Quality of Life GRAVES' DISEASE QUICK OVERVIEW What is it? Graves' disease is an autoimmune disorder that causes hyperthyroidism The immune system produces thyroid stimulating immunoglobulins (TSI) These antibodies mimic TSH Carnitine: Genetic Variants Affecting Mitochondrial Energy and Health 9 Natural Remedies for Hyperthyroidism and Graves' Disease