Hyperthyroidism and Functional Medicine Guide Amy Myers MD AMMD Carnitine and Thyroid Disease page 1 Life Extension 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 Thyroid Supplement with L Carnitine for Cats Only Natural Pet Altered carnitine acylcarnitine profiles in levothyroxine treated congenital hypothyroid patients with fatigue: An LC MS MS based study from Bangladesh PLOS One