A landmark 2006 National Research Council (NRC) report on fluoride in water identified many adverse health effects associated with exposure to fluoride. Based on the concentration levels reported to be harmful, there is clearly no adequate margin of safety to protect against these adverse effects for nearly 200 million Americans drinking fluoridated water. Especially at risk are infants and small children, the elderly or frail, and those with above average water consumption, inadequate nutrition, diabetes, and poor thyroid or kidney function.
Ignoring all risks in the NRC report, the US CDC still spends millions of tax dollars promoting fluoridation and, after more than one year, the US EPA has failed to do the fluoride Risk Assessment called for in the NRC report.