Harvard Study Finds Fluoride Lowers IQ - Published in Federal Gov't Journal

(Reuters – July 24, 2012) - Harvard University researchers' review of fluoride/brain studies concludes "our results support the possibility of adverse effects of fluoride exposures on children's neurodevelopment." It was published in Environmental Health Perspectives, a US National Institute of Environmental Health Sciences' journal. "The children in high fluoride areas had significantly lower IQ than those who lived in low fluoride areas," wrote Choi et al. Further, the EPA says fluoride is a chemical "with substantial evidence of developmental neurotoxicity." 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.