The removal of iodine over the last 40-50 years, replacement by bromine in bread, and the insertion of flouride in the water systems may have had an effect . . . might want to check the goiter statistics. . . Life Extension Foundation has articles on the massive iodine and magnesium deficiencies of the American populace.
www.lef.org
N.
My doctor told me about lack of iodine, selenium.. especially in the midwest. He has me on supplements in addition to my thyroid pills. I wish I would have known about everything decades ago.