05/14/2026
Scientist Chris Neurath’s comments should put this study to rest forever.
Dr Bob
Fluoride Study Claiming No Effect on IQ Has ‘Basically No Connection to Reality,’ Critics Say
"Mainstream media are widely promoting a study claiming that community water fluoridation has no effect on IQ, but critics told The Defender the study contains fundamental methodological errors that invalidate the authors’ conclusions."
The “highly anticipated long-term study”... was widely cited by media and proponents of water fluoridation as evidence that there is no difference in IQ between people who drank water containing fluoride at the level currently recommended by U.S. public health agencies and people who didn’t.
But Chris Neurath — a research director for the American Environmental Health Studies Project who analyzed the study — identified flaws in the data used for the study and the authors’ conclusions.
Neurath said that one of the “most deceptive parts” of both the media coverage and the study itself was the claim that it studied community water fluoridation, and that it was a comparison between two groups — people exposed to fluoridation and people who weren’t.
Neurath found that the authors didn’t actually measure how much fluoride study participants consumed.
They also didn’t study people who were exposed to fluoride as neonates or young children — the very groups that research shows are most affected by fluoride exposure."