Steven Novella, M.D., a medical neurologist on the Yale College Faculty of Medication, debunked the findings in a weblog for Science-Primarily based Medication in 2023.
Novella’s criticisms are primarily twofold:
- The research relied upon are predominantly from communities in China, the place the water is of course fluoridated with a lot larger concentrations of fluoride than is present in U.S. water. Whereas the CDC recommends 0.7 milligrams of fluoride per liter of water, a few of the knowledge was as excessive as 16 milligrams per liter.
- Even the information with excessive ranges of fluoride publicity isn’t all that compelling with respect to cognitive perform. “The impact, in different phrases, whether it is actual, doesn’t seem like clinically dramatic,” mentioned Novella.
“In fact, all potential neurotoxicity to the creating mind needs to be taken very severely. Each IQ level is a treasured human useful resource,” Novella wrote.
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