A recent report from the National Research Council (NRC ) concluded that adverse effects of high fluoride concentrations in drinking water may be of. In , Grand Rapids, Michigan, became the first community in the world to add fluoride to tap water. When subsequent studies showed a. March 10, — Controversy over fluoride levels in drinking water in Those studies have actually not been done,” said Grandjean, also head of the. Duan J, et al. For example, the Journal of the American Medical Association JAMA stated in their Sept. Fluoride suppresses the immune system: NEWS Highline Science Education Weird News Business TestKitchen Tech College Media. These results suggest a deficit in working memory. This and other studies linking fluoride to cancer were government-ordered but were quickly buried once fluoride was found to be linked to dramatic increases in cancer. Categories Campaign for Dental Health News Children's Oral Health and Fluoride Communities Supporting Fluoride Facts about Fluoride Featured Fluoride and Public Health Fluoride in the News Fluoride, Oral Health, and Access to Care Infographics Partners in Fluoride Uncategorized Video What the Experts Say about Fluoride. Carcinogen Identification Committee meeting held on October 12, The higher the water fluoride is, the lower the level of IQ. There was only one study carried out in a non-endemic or CWF [community water fluoridation] area that examined fluoride and IQ. Trivedi MH, et al. Baotou, Inner Mongolia, China Size of study: Fluoride, in whatever amount, is nothing less than a chemical weapon. Wechsler Intelligence Scale for Children Results: A Children with dental fluorosis had lower IQ Studies [on human fetuses] have already shown that the developing brain is one of the ripest targets for disruption by fluoride poisoning.