When I was dealing with hyper thyroid I went to a well noted Endronconologist (spelling) and she put me on anti depressents as soon as a took radio active iodine to kill me thyroid ( I went from hyper to hypo).
She did sugest I take Vitamin B, C, D, K stating thyroid depleats your body of these vitamins. As far as the reason I do not know.
It's been 18 yrs ago...I'm sure there has been alot of new research since then. Maybe do some more research to find out what the new findings are or ask your Endronconologist.
Hope this helps.
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