Jul 29 2012 Major Harvard study confirms fluoride lowers childrens IQ

Major Harvard study confirms fluoride lowers childrens IQ

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Harvard University researchers’ review of fluoride/brain  studies published this months in EHP concludes “our results support the possibility of adverse effects of fluoride exposures on children’s neurodevelopment.  Future research should include detailed individual-level information on prenatal exposure, neurobehavioral performance, and covariates for adjustment.”
The stuy by Anna L. Choi, Guifan Sun, Ying Zhang, Philippe Grandjean was submited December 30, 2011 and published online July 20, 2012 in Environmental Health Perspectives, a US National Institute of Environmental Health Sciences’ journal (here).
“The children in high fluoride areas had significantly lower IQ than those who lived in low fluoride areas,” write Choi et al.
Further, the EPA says fluoride is a chemical “with substantial evidence of developmental neurotoxicity.”
Fluoride (fluosilicic acid) is added to US water supplies at approximately 1 part per million attempting to reduce tooth decay.
Water was the only fluoride source in the studies reviewed and was based on high water fluoride levels. However, they point out research by Ding (2011) suggested that low water fluoride levels had significant negative associations with children’s intelligence.

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