in the meantime, a little reading http://www.ithyroid.com/supplements.htm
"Hypers: Everything that I've experienced myself, seen in others, and read about in scientific studies indicates that the primary deficiencies involved in hyperthyroidism are copper and iron. The balance between copper and zinc seems to be critically important in determining the rate of thyroid hormone production. Copper slows down the thyroid while zinc increases thyroid action. Copper should be supplemented first and if zinc is presently being supplemented it should be discontinued for two to three weeks or until the thyroid slows down. Copper absorption and utilization is increased by molybdenum and the B-complex vitamins, including extra biotin and PABA. Zinc is essential for health but excess amounts may increase thyroid hormone production. You will have to experiment to determine how much zinc you can take. Try to maintain a zinc/copper ratio of about 3:1 to 5:1 at first...[note: i don't know if that means in the supplement, or in your blood, but my ratios are REALLY different than described here. in serum, you want your zinc copper ratio to be about 1.1, ie zinc between 18 and 19 umol/L or so, and copper around 17 umol/L. in supplements, i go for a product that contains 50mg zinc balanced with 2mg copper, so that's more like 25 to 1.]
...Most hypers and hypos are deficient in iron. Iron may be low because of insufficient intake or deficiencies of minerals such as manganese, copper, or cobalt (vitamin B-12), or B vitamins, which are essential for iron utilization. Copper and iron work together to form hemoglobin and need to be supplemented together. Supplementing with either alone can lead to a deficiency of the other.
Studies show that a deficiency of selenium usually causes a decrease in the conversion of T4 to T3. However under abnormal conditions, a deficiency of selenium can cause the body to increase conversion of T4 to T3 which can lead to higher levels of T3. Selenium is very important for normal thyroid function. Start by taking 100 micrograms per day and gradually increase up to 300 micrograms.
All of the supplements listed are necessary either to correct the underlying causes of hyperthyroidism or to supplement nutrients which are used up by the hyper metabolism."
i think an extremely wise step would be to have serum zinc, serum copper, serum ferritin, and serum selenium tested. when the docs tell you the results are normal, smile, nod and request your own copy of the actual results, then bring them here
if you can't get the doc to order the tests for you, as long as you're in the states you can order your own tests from life extension.
here are some food source links, including amounts of nutrients per serving, in milligrams.
copper http://www.whfoods.com/genpage.php?tnam ... oodsources
(sesame seeds are amazing for this. do you ever eat tahini? also cashews, mushrooms, spinach and swiss chard - see the iron section below for more on those last two)
iron http://www.whfoods.com/genpage.php?tnam ... oodsources
(spinach is right up there but you need vitamin C with it for absorption; green swiss chard also excellent - boil either for 3 mins to cook off the oxalic acid, then enjoy 1c at a time seasoned to taste. i'm assuming veal liver would not make an appearance on your menu, but just a heads up that organ meats are generally very rich in iron)
selenium http://www.whfoods.com/genpage.php?dbid ... oodsources
(halibut, tuna, cod, shrimp, sardines, salmon - nb all these little lists are presented in descending order of nutrient concentration. also nb re tuna, I wouldn't go overboard due to concerns re heavy metal contamination...)
thought i'd also add potassium, since you'd mentioned you tested low..
potassium http://www.whfoods.com/genpage.php?dbid ... oodsources
(oh look, guess who tops the list? yep spinach and swiss chard. such veggie rock stars!)