Jazzie...a key point is that you shouldn't eat these vegetables raw. We never eat them raw, always cooked.
Thanks,
Carolyn
Excerpt from the link you sent me:
Dear Gloria,
We are glad you raised this doubt. Actually, it is mentioned in the article that the foods when eaten raw might worsen the thyroid condition. However, something like spinach becomes a controversial food. As spinach is loaded with nutrients essential for the body during thyroid like folate and zinc. Besides, they have less calories. The flip side is raw spinach is said to be bad for underactive thyroid. Again, each one of us is different. What might work for me might not work for you. It is always better to consult a health professional before starting a diet. Hope that satisfies your query. Keep visiting!