There are 4 treatment options for hyperthyroidism:
radioactive iodine (I-131) – the ‘gold standard‘
anti-thyroid medication (e.g. methimazole)
surgery
Hill’s y/d (a diet deficient in iodine – canned and dry)
Note that only radioactive iodine and surgery address the underlying cause of the disease which is a tumor.
Anti-thyroid medication and an iodine-deficient diet do not address the tumor which will continue to grow.
Therefore, representatives from Hill’s are making a false statement when they claim that y/d “restores thyroid health.”