L carnitine: Health Benefits, Side Effects, Uses, Dose & Precautions If you are like a lot of people, you may have never heard of carnitine but this important nutrient is critical for our body's ability to optimally burn fat required for energy. 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 9 Natural Remedies for Hyperthyroidism and Graves' Disease Are these Supplements Hurting your Thyroid?