University of Iowa professor of dentistry and epidemiology Steven M. Levy, an international expert on fluoride intake and water fluoridation, addressed a recent study linking fluoride exposure and lower children’s IQ levels. Levy wrote that “several considerations raise substantial concerns about the validity and usefulness of the article,” laying out his arguments in an editorial published alongside the study.

Editorial: Caution Needed in Interpreting the Evidence Base on Fluoride and IQ (JAMA Pediatrics)

Media Coverage

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Study Links High Fluoride Exposure to Lower I.Q. in Children (New York Times)

What a new study does — and doesn’t — say about fluoride and its link to IQ (Los Angeles Times)

Fluoride once again scrutinized for possible effect on children’s brains (NBC News)