
U.S. Well being Secretary Robert F. Kennedy Jr. is on a conflict in opposition to components, from synthetic colours to the added sugars he deems “poison.” The newest goal of his Make America Wholesome Once more campaign? Fluoride.
Fluoride has been routinely added to consuming water throughout America for the reason that late Nineteen Forties, due to proof that it may strengthen tooth and cut back cavities by changing the minerals misplaced by way of regular dental put on and tear. However in late April, Kennedy introduced his plans to inform the Facilities for Illness Management and Prevention to cease recommending that fluoride be added to consuming water. The EPA introduced concurrently it was reviewing “new scientific data” on the potential dangers of fluoride in our water, notably its purported results on the IQs of youngsters.
“Secretary Kennedy has lengthy been on the forefront of this challenge,” says EPA Administrator Lee Zeldin. “His advocacy was instrumental in our determination to overview fluoride publicity dangers, and we’re dedicated to working alongside him, using sound science as we advance our mission of defending human well being and the surroundings.”
However not all specialists agree that that is the easiest way ahead. They observe that the research motivating the transfer are flawed at finest, and that the influence on the dental well being of low-income Individuals might be dire. So is fluoride dangerous for you, or is it one of the best preventative measure we’ve in opposition to tooth decay? Right here’s what we all know.
What Is Fluoride?

Fluoride is a naturally-occurring mineral that has been discovered to stop and even restore enamel erosion and tooth decay.
It’s finest recognized for strengthening tooth enamel, the arduous outer layer of our tooth. In our lives, the enamel in our tooth is consistently being slowly eroded by acids from micro organism, plaque, and sugars in our mouths. These acids trigger a lack of minerals, or demineralization. Fluoride helps reverse this demineralization by replenishing misplaced minerals, making our enamel extra proof against the acid in our mouths.
The Science Behind Fluoride in Consuming Water
In response to Scientific American, the preliminary fluoridation of consuming water techniques in america lowered cavity charges by 50 to 70 % in youngsters, and 20 to 40 % in adults1. As we speak, due to different fluoride sources like fluoridated toothpastes, fluoridated water techniques are estimated to scale back these charges by a extra humble (however not insignificant!) price of about 25 %.
However, an excessive amount of fluoride in consuming water has been related to a lot of well being dangers, together with skeletal fluorosis, a buildup of fluoride within the bones that may result in joint stiffness and ache. Whereas some proof appears to point out a hyperlink between water fluoridation and sure cancers, it’s not sufficient to confidently reply the query “does fluoride trigger most cancers?” The American Most cancers Society notes that these hyperlinks are “equivocal” and weak2.
A Controversial New Report

The present vitriol in opposition to fluoridation stems primarily from a 2022 report by the Nationwide Toxicology Program, which summarized information from research in international locations together with China and Canada3. The report highlights research that appear to point that consuming water with greater than 1.5 milligrams of fluoride per liter might be related to decrease IQs in youngsters.
So how a lot fluoride in faucet water is appropriate? The present beneficial restrict set by america Public Well being Service was lowered in 2015 from 0.7mg per liter to 1 mg per liter, and the EPA at present has imposed a most fluoridated consuming water customary of 4 mg per liter.
“For my part, one of the best proof reveals that CWF [community water fluoridation] is just not dangerous to folks, together with to not bone, thyroid, IQ, and so on.”
Dr. Steven Levy, dental well being care researcher on the College of Iowa
Specialists are essential of this new report, which failed twice to go scientific overview from the Nationwide Academies of Sciences, Engineering, and Medication. The American Dental Affiliation and American Academy of Pediatrics declare the information the report relied on contained vital omissions. For Dr. John Fawell, a member of the skilled committee for the WHO Pointers for Consuming Water High quality since 1988, this new paper “doesn’t but permit a conclusion of causality.”
Dr. Steven Levy, a dental well being care researcher on the College of Iowa, agrees. “For my part, one of the best proof reveals that CWF [community water fluoridation] is just not dangerous to folks, together with to not bone, thyroid, IQ, and so on.,” says Levy. “The current NTP report on fluoride and JAMA Pediatrics meta-analysis and federal court docket case have been deeply-flawed analyses since they didn’t correctly bear in mind the poor high quality of the research and the numerous limitations, errors, biases.”
The Dangers of Eradicating Fluoride from Consuming Water
“There are underprivileged teams who discover it troublesome to entry dental care and dental hygiene merchandise, and water fluoridation is a low value and dependable method of reaching these teams.”
Dr. John Fawell, member of the skilled committee for the WHO Pointers for Consuming Water High quality
In response to Fawell, fluoridating consuming water is crucial for dental well being, significantly for communities who can’t afford common dentist visits. “The proof for fluoride serving to to stop tooth decay, significantly in youngsters, could be very sturdy,” says Fawell. “There are underprivileged teams who discover it troublesome to entry dental care and dental hygiene merchandise, and water fluoridation is a low value and dependable method of reaching these teams.”

The repercussions of the proposed adjustments, based on Levy, are more likely to embody “extra cavities, dental prices, ache and struggling.”
“It is a complicated space the place science and coverage usually are not very comfortably juxtapositioned, and it’s unlucky that synthetic fluoridation generates a lot warmth,” provides Fawell. “I believe that the brand new proof shouldn’t be simply dismissed, however I do suppose that no choices ought to be taken with out very cautious and goal consideration of each the scientific proof and the advantages.”
State-Stage Modifications in Water Fluoridation Are Already on the Rise
Upfront of potential adjustments on the federal degree, a number of states and communities have already begun to eradicate fluoride from their consuming water. In March, Utah grew to become the primary state to ban fluoride in public consuming water, efficient Could 7.
“I’m very, very happy with this state for being the primary state to ban it, and I hope many extra will,” Kennedy mentioned on the time. And he could quickly get his want. Florida lawmakers authorized a invoice to ban the mineral from water techniques in late April4, and related fluoride ban laws is within the works in Kentucky, Massachusetts, and Nebraska. Since 2010, greater than 170 American cities, cities, and counties have stopped water fluoridation.

However is the removing of fluoride in consuming water a superb factor? Different communities have already nixed water fluoridation to unlucky outcomes. Israel eradicated the follow in 2014; afterwards, youngsters aged three to 5 required twice as many dental procedures5. In Calgary, fluoridation stopped in 2011; pediatric dentist Dr. Warren Loeppky tells Science Information that he has seen an uptick within the aggressiveness and severity of tooth decay in youngsters over the previous decade6.
General, we could also be leaping to conclusions on the science right here by prematurely eradicating fluoride. If RFK Jr. will get his method, or if you happen to stay in a state the place water fluoridation is being rolled again, it might be price contemplating fluoride toothpaste and mouthwashes to guard your tooth.
Sources:
- https://www.scientificamerican.com/article/fluoride-in-drinking-water-is-safe-heres-the-evidence/
- https://www.most cancers.org/most cancers/risk-prevention/chemical substances/water-fluoridation-and-cancer-risk.html
- https://ntp.niehs.nih.gov/analysis/assessments/noncancer/accomplished/fluoride
- https://www.nbcnews.com/well being/health-news/florida-water-fluoridation-political-fluoride-kennedy-rcna200645
- https://ijhpr.biomedcentral.com/articles/10.1186/s13584-024-00637-5
- https://www.sciencenews.org/article/fluoride-drinking-water-dental-health