Fluoride-IQ Study Fuels Debate Over US Water Fluoridation
- A meta-analysis of studies found that a 1 part per million increase in fluoride in urine is linked to a 1.63 drop in IQ score, with consistent evidence showing that higher fluoride exposure is associated with diminished IQ in children.
- A nine-year research review concludes that higher fluoride levels result in lower IQ scores, with a 5-point decrease in a population's IQ nearly doubling the number of people classified as intellectually disabled.
- Dr. Steven Levy questions the study's conclusions, noting all human studies in the review are from outside the US with a high risk of bias, and emphasizes there is no evidence of adverse effects at lower fluoride levels used in community water fluoridation systems.
106 Articles
106 Articles
Should fluoride be in our water?
Robert F. Kennedy Jr. has put the decades-old debate over water fluoridation back on the table. As President-elect Donald Trump’s pick for Health and Human Services secretary, he might become the most powerful public health figure in the US who believes we should take fluoride out of our water. Currently, it’s up to municipalities to set their own water fluoride doses — most of them set them around 0.7 milligrams per liter of water — so it’s unc…
Fluoride has been a controversial issue for decades. Parents in particular are concerned that it could harm their children. Now a review study from the USA is shedding light on the possible consequences - and is sparking a new debate in the country.
Fluoride analysis triggers renewed debate over what levels are safe for kids
A new study suggests a link between high levels of fluoride and lowered IQ. It's heating up arguments over fluoridating drinking water, which dentists say is critical for protecting teeth.
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