Eine neue Studie kommt zu dem Ergebnis, dass Fluorid im US-amerikanischen Trinkwasser den IQ nicht senkt und damit Behauptungen widerlegt, die Zufuhr des Minerals zu öffentlichen Wassersystemen zu stoppen
Fluoride in U.S. drinking water does not reduce IQ, a new study finds
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>Two U.S. states and more than a dozen cities and counties have moved in the past year to [stop adding fluoride to community drinking water](https://www.sciencenews.org/article/fluoride-drinking-water-dental-health), citing research suggesting the mineral could harm children’s brain development.
>But a [new analysis of cognitive outcomes tracked over decades finds no evidence](http://dx.doi.org/10.1073/pnas.2536005123) that water fluoridation is associated with lower adolescent IQ or diminished mental abilities later in life, researchers report April 13 in the *Proceedings of the National Academy of Sciences*.
>The results, based on standardized intelligence testing of more than 10,000 people in Wisconsin followed since their senior year of high school in 1957, challenge the idea that typical fluoridation levels in public drinking water pose a neurodevelopmental risk, a central point of contention in ongoing policy debates.
[Read more here](https://www.sciencenews.org/article/fluoride-drinking-water-iq-no-evidence) and the [research article here](https://www.pnas.org/doi/10.1073/pnas.2536005123).
Republicans and Big Dentistry are behind the fluoride fearmongering!
GOP = Cavity Creeps
Bill Gates? Is that you?
Dang if only this politically convenient study was done before the controversy.
Unlucky.
I wish my city would add fluoride to drinking water.
Dental treatment is very expensive in Canada even with insurance.
The outcome of an MIT analysis a few years concluded the same. One caveat! Some cities do not accurately enough ensure levels are consistent was discovered. Therefore, pregnant women should be cautious about the total consumption as fluoride may affect the fetus.
The outcome of an MIT analysis a few years concluded the same. One caveat! Some cities do not accurately enough ensure levels are consistent was discovered. Therefore, pregnant women should be cautious about the total consumption as fluoride may affect the fetus.
„We investigate associations between community water fluoridation (CWF), adolescent IQ, and cognition across the life course using representative data from the US state of Wisconsin. Exposure is inferred from historical records on community water fluoridation; adolescent IQ is ascertained from state testing records; and cognition in later life is assessed as part of the Wisconsin Longitudinal Study [P. Herd *et al.*, *Int. J. Epidemiol.* **43**, 34–41 (2014).]. In contrast to studies cited in recent decisions to end CWF in Utah, Florida, and elsewhere, we find no evidence that CWF is negatively associated with adolescent IQ or adult cognitive functioning.“