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UK Against Fluoridation

Thursday, August 13, 2015

Fluoride and Cancer – and IQ Follow-up

Fluoride and Cancer – and IQ Follow-up
Before getting into this exposé of the harmful effects of fluoride, we want to follow up with additional information from on our previous posting about fluoride and IQ.
Harvard IQ Researchers Respond to Pro-Fluoridation Criticism
The authors of the 2012 Harvard Meta-analysis (http://ehp.niehs.nih.gov/wp-content/uploads/2012/09/ehp.1104912.pdf) that highlighted fluoride’s role as a developmental neurotoxin, Philippe Grandjean, MD, PhD, and Anna Choi, ScD, have written a letter responding to pro-fluoridation criticism of their work by Dr. Jonathan Broadbent(http://www.ncbi.nlm.nih.gov/pubmed/24832151).  Broadbent’s counter-study and Grandjean’s letter in response were both published in the American Journal of Public Health.  In his response, Grandjean states,
“We are therefore concerned that the safety of elevated fluoride exposure is being exaggerated in ways similar to those employed by vested interests to misconstrue the scientific evidence of other neurotoxicants, such as lead, mercury, and certain pesticides.  Firm dismissal of fluoride as a potential neurotoxic hazard would seem premature.”
This isn’t the first time Grandjean has responded to pro-fluoridation efforts to downplay the impact fluoride has on IQ.  In December, he challenged the spin being used by fluoridation promoters.  Grandjean’s commentary (Mottled fluoride debate) appears on his website (Chemical Brain Drain) and is printed in full below. Grandjean explained that for the children tested, 
“Their lifetime exposures to fluoride from drinking water covered the full range allowed in the U.S. Among the findings, children with fluoride-induced mottling of their teeth – even the mildest forms that appears as whitish specks on the enamel – showed lower performance on some neuropsychological tests. This observation runs contrary to popular wisdom that the enamel effects represent a cosmetic problem only and not a sign of toxicity. At least one of five American children has some degree of mottling of their teeth.”


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