Trust the Evidence

Trust the Evidence

Fluoride in the Water

So, where does this leave RFK Jr.?

Carl Heneghan's avatar
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Carl Heneghan and Tom Jefferson
Nov 10, 2024
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Politico reports that RFK Jr. plans to ban fluoridation, and the work is already underway. Multiple news outlets repeated this story, yet none of them checked the evidence.

According to the CDC, adding fluoridation to water supplies was among the 20th century’s top ten public health achievements.

“a cornerstone strategy for prevention of cavities in the U.S. It is a practical, cost-effective, and equitable way for communities to improve their residents’ oral health regardless of age, education, or income.”

The CDC states that fluoridated water keeps teeth strong and reduces cavities by about 25% in children and adults. 

To validate this statement, the CDC refers to two studies. The first, a meta-analysis of 20 studies. Eleven studies examined the effectiveness of self- or clinically applied fluoride, and of the nine that examined the effectiveness of water fluoridation none were RCTs, and all were cross-sectional studies. Also, the review, which wasn’t systematic, included adults and no c…

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