Mercola - Fluoride pushes out iodine

Finally!

Fluoride molecular weight explained.

Fluoride replaces iodine on the tyrosine receptors and blood work cannot detect this.

British researchers are now warning that 15,000 people may be needlessly afflicted with hypothyroidism in the UK as a result of drinking fluoridated water
Thyroid function was affected starting at a fluoride level of 0.3 mg/L; the US currently recommends a level of 0.7 mg/L

So if you are overweight, fatigued, depressed, and losing hair, the dr see's your thyroid tests as normal, they send you to a psychiatrist because they think you are nuts.
http://articles.mercola.com/sites/articles/archive/2015/03/10/water-fluoridation-thyroid-dysfunction.aspx?e_cid=20150310Z1_DNL_B_art_1&utm_source=dnl&utm_medium=email&utm_content=art1&utm_campaign=20150310Z1_DNL_B&et_cid=DM69496&et_rid=870251927