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Objective: We performed a systematic review and meta-analysis of published demiological studies of developmental fluo-. ride neurotoxicity. Developmental Fluoride Neurotoxicity: Choi et al. Respond . fluoride neurotoxicity: a systematic review and meta-. analysis. Environ Health. “Developmental Fluoride Neurotoxicity: A Systematic Review and Meta-Analysis” is a study published in Environmental Health.

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Choi[note 1] Guifan Sun sgstematic, [note 2] Ying Zhang[note 3] and Philippe Grandjean [note 4] [1] that has been mis-cited by anti-fluoridists for years. They were studying fluoride poisoning in China, and it’s irrelevant to any debate over intentional water fluoridation.

What a ghastly thing to see coming from real scientists, doing real science!

Developmental Fluoride Neurotoxicity: A Systematic Review and Meta-Analysis

The study has been repeatedly cited by anti-fluoridation groups which include bastions of science like Joseph Mercola and NaturalNews as slam-dunk evidence. However, if you actually read the paper and look at Table 1, mtea-analysis study compared children in areas with recommended levels of fluoride in water — the same levels that are introduced in the process of water fluoridation 0. In other words, and yet again, this paper documents the risks of chronic fluoride toxicity, not water fluoridation.

The authors of the original meta-analysis published an updated statement on the study revieq September of that year, [5] underscoring this:.


Developmental fluoride neurotoxicity: a systematic review and meta-analysis.

Our study summarized the findings of 27 studies on intelligence tests in fluoride-exposed children; 25 of the studies were carried out in China. In general, complete information was not available on these 27 studies, and some limitations were identified.

So not only were the studies lacking complete information and were limited in scope both of which greatly harm scientific replicatabilitythey were also all conducted in Chinaa country with severely lacking academic freedom from the state as well as having many places where ground water has exceeded safe amounts for consumption.

Fluoride released into the ground water in China in some cases greatly exceeded levels that are typical in the U. That the fluoride levels in the Chinese studies had at times been elevated directly by industrial spills into the ground water supply means that other compounds could possibly have leaked into the water that were not even looked for by the fluoride studies and which may just as well — or better — explain the apparent reduction in IQ.

When considering the risks and benefits of fluoride exposure, the level of intake needs to be considered.

Developmental Fluoride Neurotoxicity: A Systematic Review and Meta-Analysis

These results do not allow us to make any judgment regarding possible levels of risk at levels of exposure typical for water fluoridation in the U.

On the other hand, neither can it be concluded that no risk is present. That is to say, pro-fluoridation science does not recommend massive amounts of fluoride being added to water supplies. As with anything, the dose makes the poison.


What is literally concluded by the study authors about their meta-analysis of the Chinese research is that it cannot be used to say anything about U. Neither can it be used to demonstrate the harmful effects or complete safety, to be fair of municipal fluoridation as the study is better used to examine the effects of deevelopmental poisoning.

So when this paper is quoted, let the authors of said paper have the last word — it is not relevant to the U. Full text of the paper. Retrieved March 20, Retrieved from ” https: Water woo Biology Documents.

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