Too much fluoride linked to lower IQ in children
A federal report this week linked high levels of fluoride in other countries to lower IQs in children, adding new evidence in the long-simmering debate over adding fluoride to public drinking water systems. The report from the U.S. Department of Health and Human Services’ National Toxicity Program concluded with “moderate confidence” that a collection of non-U.S. studies associated higher levels of fluoride with lower IQ in children. The report evaluated a collection of previous studies completed on populations in Canada, China, India, Iran, Pakistan and Mexico. The review examined total fluoride exposure from all sources, so it did not solely measure health effects of drinking fluoridated water. But experts say it will likely generate debate among anti-fluoride groups who are pushing for ballot measures and other actions to ban public water fluoridation in local communities.
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