If you've been diagnosed with Graves' disease, you may be wondering about treatment options. The three main approaches for treating hyperthyroidism are antithyroid medications, radioactive iodine therapy, and thyroidectomy (surgery). Each option L Carnitine Supplement Pure Encapsulations Acetyl L Carnitine 500mg Cognitive Support Carlson Liquid Carnitine 3000mg Plus Old School Labs 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