That is interesting. I wonder if killing parasites helps with borderline thyroid problems maybe. I got rid of mine but it did not help the thyroid at all. Armour thyroid, Rhodioloa, kelp, Iodine & Ashwagandha helped me though. I think candida can also be implicated in thyroid problems as some people report that getting rid of it cured the problem. No doubt there is more than one cause for hypothyroidism, not to mention goirtrogens and bromide sprayed on produce.