A medical journal has published a study linking the consumption of fluoridated water with lower IQs.
An influential medical journal published a study Monday that links fluoride consumption during pregnancy with lower childhood IQs—a finding that could undermine decades of public-health messaging, fire up conspiracy theorists, and alarm mothers-to-be.
The research was expected to be so controversial that JAMA Pediatrics included an editor’s note saying the decision to publish it was not easy and that it was subjected to “additional scrutiny.”
“It is the only editor’s note I’ve ever written,” Dimitri Christakis, editor in chief of JAMA Pediatrics and a pediatrician, told The Daily Beast. “There was concern on the journal’s editorial team about how this would play out in the public eye and what the public-health implications would be.”
About three-fourths of the United States drinks fluoridated tap water—which the U.S. Centers for Disease Control and Prevention declared one of the 10 greatest public-health achievements of the 20th century because it dramatically reduces tooth decay.
A handful of earlier studies have suggested that prenatal fluoride exposure could affect neurodevelopment, but many experts considered those to be substandard. The new study, vetted by the premier medical publisher in the U.S., is seen as more rigorous.
“When we started in this field, we were told that fluoride is safe and effective in pregnancy,” said study co-author Christine Till of York University in Toronto. “But when we looked for the evidence to suggest that it’s safe, we didn’t find any studies done on pregnant women.”
They recruited 512 pregnant women from six Canadian cities and measured their exposure several ways: analyzing the amount of fluoride in their urine; looking at how much tap water and tea they drank; and comparing the fluoride concentration in the community drinking water.
Then, when the women’s children were 3 or 4, the researchers gave them IQ tests and crunched the numbers to see if they could find any trends.
“We saw an association between prenatal fluoride exposure and lower IQ scores in children,” study author Rivky Green said.
Specifically, they found a 1 mg per liter increase in concentration of fluoride in urine was associated with a 4.5 point decrease in IQ among boys, though not girls. Another translation: The boys of mothers with the most fluoride in the urine had IQs about 3 points lower than the boys of mothers with the least amount.
When the researchers measured fluoride exposure by examining the women’s fluid intake, they found lower IQs in both boys and girls: A 1 mg increase per day was associated with a 3.7-point IQ deficit among both genders.
I’ve always believed that fluoridating the water supply was just a means to make the population stupid. Looks like this study confirms my suspicions.
And get this, the Israelis have already discontinued this practice. Go figure?
All this bullshit about preventing tooth decay seems to have just been an excuse to put this garbage in the water. I’d imagine there’s lots of corporate interests who profit off of its production and benefit off of water fluoridation.
But the fact that the Jewish media has made it a point to promote water fluoridation as a good thing is in of itself reason enough to remove it from the water. People who question its use are not crazy conspiracy theorists. We are rational people who are asking legitimate questions.