the reason for using ithyroid.com was to help us to learn how minerals & nutrients intercombine to allow our systems to function. I believe these things are what can be affecting illnesses through blood lines, as what our parents eat we eat (retrospectly) so if there is a deficiency or excess in one there could well be also in another of that family. do you have any symptoms that concern you? I am able to control my thyroid state from hypothyroid to hyperthyroid or balance simply by using nutrients to balance this function & it can be used for other illnesses, this is a direct link to the state of helth relative to thyroid function. also the acidic state or lack there of(being alkaline)is a direct relating to our state of illness, a balanced alkalinity throughout our bodies is the true indicator of good health.
When persueing a zinc diet you also need to include copper within balance, ithyroid.com will help you learn this, foods with zinc - brazil nuts(just a few), avacado,muscle meats, eggs, nuts & brewers yeast just to name a few. Go to anyvitamin.com here you can learn what foods have what nutrients & what role these nutrients play in the function of our bodies!