Taxpayor dollars were used by our EPA when they commissioned the National Research Council (NRC) to investigate fluoridation. Adverse health effects, cellular effects, thyroid harm, infammation exacerabtion, diabetes, brains, and the develpoing fetus are just a few of the areas that this extenisive book covers nealry 15 years ago. Harm to human health and the brain and to the fetal brain have been shown time and time again and our Federal Agency(s) does nothing.
The 500 + page book is now over 14 years old and so much more credable and reputable published science has come out since that landmark peice of work. In 2006 in the book entitled "Fluoride In Drinking Water: A Scientific Review of EPA Standards (2006)" See and read the book here! https://www.nap.edu/catalog/11571/fluoride-in-drinking-water-a-scientific-review-of-epas-standards
