thinking about the thyroid again

I was googling about b-complex and thyroid and came across this article. While it has a little quackery bits in it, the nutritional stuff and thyroid function stuff seems reasonable enough to be true (IME that can be the case, good info with weird supplement pitching online). I'm going to compare to some books I have but just in case you are interested:

http://www.oxymega.com/thyroid_gland.html

knowing that some of the foods I eat, including kale, broccoli and peaches might be working against my thyroid, and that the thyroid helps the body to rest and settle itself ( something I've been having a problem with) and think clearly, I'm feeling like yes, perhaps there might be more to what I can do.