[liv]

There are those who claim that flaxseed contains goitrogens (goitrogens supress thyrod function) but there is not much serious research to back this up. I am hypo and I like flax so I have tried to figure out what is up with flax and thyroid

Here is a quote from the world's healtiest foods page

Part of the concern over cyanogenic glycosides in health research has been their ability to release cyanates that can then be combined with sulfur molecules to form thiocyanates. Excessive amounts of thiocyanates can sometimes be problematic for our thyroid function and, for this reason, are considered "goitrogenic." In the studies I've seen on flaxseed consumption, urinary levels of thiocyanates in subjects given flaxseeds either seem unchanged by the addition of flaxseeds to their diet, or when changed, are increased. Presumably, when the urinary levels of thiocyanates increase, it means that the body is successfully eliminating the excess cyanates and that no health risk is present. Since flaxseeds don't directly contain goitrogens, I don't see evidence of health risks in this regard.