A legal battle over the safety of
Fluoride has been routinely added to US drinking water supplies since 1946 in order to
The issue came to a head in 2017 when a group of plaintiffs led by the non-governmental organization Food and Water Watch (FWW) brought an action against the EPA under the Toxic Substances Control Act. The hearing began in June 2020, but Chen halted proceedings shortly afterwards in order to wait for a
It is on this report that the case hinges, and while the document has still not been published, Chen has now allowed the trial to resume.
Initiated in 2016, the NTP assessment consists of a systematic review of all the available data on the neurodevelopmental effects of fluoride exposure in both humans and animals. Overall,
For instance, of the 19 reliable studies on children included in the review, 18 demonstrated a link between exposure to high levels of
Nonetheless, the NTP initially proposed a “hazard classification” for fluoride when it published the first draft of its report in 2019. This was later retracted after peer review by the National Academies of Science, Engineering, and Medicine (NASEM) found that the authors’ conclusions were “not adequately supported.”
In its second draft, the NTP wrote that fluoride’s “effects on cognitive neurodevelopment are inconsistent, and therefore unclear.” However, this statement was left out of the most recent draft, which was presented to the NASEM in
Displeased by this omission, the NASEM has requested that the NTP amend the report once again. Specifically, the peer reviewers have asked the study authors to include the following paragraph:
“When focusing on findings from studies with exposures in ranges typically found in drinking water in the United States (0.7 mg/L for optimally fluoridated community water systems) that can be evaluated for dose response, effects on cognitive neurodevelopment are inconsistent, and therefore unclear.”
The NTP, however, disagrees with this recommendation, and believes the report should simply state that “more studies are needed to fully understand the potential for lower fluoride exposure to affect children’s IQ.”
While these
Ultimately, the onus is on the FWW and co to prove that fluoride poses an “unreasonable risk” to the health of fetuses and children. Experts on both sides of the divide are now expected to give evidence over nine days, after which Chen will rule on whether or not the EPA must regulate fluoridation.