Fluoridated water doesn’t seem to make a difference on cavities. It does have neurological effects. It’s simply not acutely fatal. It’s already in our toothpaste. We don’t need it in our municipal water supply and the majority of developed countries don’t.
Thank you for the link. It’s worth mentioning that there are response letters to the publication you linked from other experts, the majority of which are critical and point out misinterpretations and omissions by the author. It’s always good to question, but in this instance it looks like the consensus amongst experts evaluating that publication is still that fluoridation is safe and improves dental health. The response letters can be read here.
Edit to add: The responses include a letter from the dean of the Harvard School of Dental Medicine stating that the publication is deeply flawed and requesting a retraction, and a similar condemnation from the students of the Harvard School of Dental Medicine. The article was given greater weight by being linked to Harvard, but in fact Harvard dental experts explicitly disagree.
This is a disingenuous take. This is a cherry-picked article that does not come to the conclusion you draw here. You also state “It does have neurological effects” but leave out the most important piece of information for that to be true: high doses.
Why should anyone trust what you say when you’re twisting the information to suit your narrative?
Counterpoint: I live in an area without fluoridated water, and I’m told that dentists can reliably identify people who didn’t grow up here by the state of their teeth.
It’s actually exactly in line with what the link above says.
In June 2015, the Cochrane Collaboration—a global independent network of researchers and health care professionals known for rigorous scientific reviews of public health policies—published an analysis of 20 key studies on water fluoridation. They found that while water fluoridation is effective at reducing tooth decay among children, “no studies that aimed to determine the effectiveness of water fluoridation for preventing caries [cavities] in adults met the review’s inclusion criteria.”
In other words, water fluoridation might not make much difference for adults, but it can for children.
The link above is not reputable and was directly refuted by, among others, the American Dental Association, the American Dental Education Association, the American Association for Dental Research, the American Academy of Pediatrics, and the Harvard School of Dental Medicine itself. From the response letter signed by the dean of the HSDM:
The magazine article states that CWF “does not appear to have any benefits in adults” based on the results of the Cochrane systematic review. However, the Cochrane review did not make this conclusion. Rather, the review specifically states “We did not identify any evidence, meeting the review’s inclusion criteria, to determine the effectiveness of water fluoridation for preventing caries in adults.” Due to the lack of studies that met the inclusion criteria, the Cochrane authors were not able to make any conclusion on the effect of CWF on adults. In fact, there are studies that were not included in the Cochrane review that demonstrate a caries preventive benefit of CWF in adults.
See the letter I linked for the studies it’s referencing with a demonstrated benefit to adult teeth. The Cochrane review’s inability to conclude whether there was a benefit or not was a limitation of the Cochrane review’s inclusion criteria, and not an absence of studies indicating a benefit.
Not sure why you’re being downvoted. The anecdote happens to parallel the scientific consensus, but “I’m told that dentists can tell” isn’t an appropriate argument when discussing medical research.
Your link is more or less an opinion piece from a geneticist, so this isn’t even her field of study.
All her health issues she points out are for fluoride concentrations over triple the amount that tap water is brought up to.
The reason it’s usage spread across the country was because while the entire country had access to things such as fluoridated toothpaste, counties and cities that started fluoridation of their water supplies consistently had fewer cavities than areas that didn’t fluoridate the water. This alone outlines the glaringly obvious flaw in her argument.
Further still, while the US adds fluoride to the tap water in a concentration to reach 0.5mg to 0.7mg per liter of water (a couple drops per 50 gallons), natural drinking water for over 20% of the world is in concentrations well over that (to be clear, being well over that can cause health issues. Too much of anything can cause health issues.)
In other words, there is no evidence that this low concentration of fluoride causes health issues. There is loads of direct evidence that it reduces cavities. Plus, this woman from your opinion piece is talking out of her field. Not to mention that 21% of the world’s drinking water supply naturally already falls within the recommended range of what the US takes theirs up to. It’s just that most of the US water supply naturally falls below that amount.
It’s cheap because it’s industrial waste that has significant cleanup and disposal costs. It was sold to municipalities after there was “research” that it helped tooth health, which it can in much higher concentrations than is in any water supply. But the reason it’s added to water is because the companies that otherwise would have to pay for clean up now make money off the waste product and can afford kickback funds.
That’s because it’s just a bs opinion piece by some geneticist. There’s loads of very conclusive evidence and testing proving that it reduces cavities. Also, this geneticist points out that it only causes problems in doses far higher than what fluoridated tap water gets brought up to.
It’s an opinion piece by a geneticist (so not a chemist or biologist or a field that could be related) and she ignores all the direct evidence that every city and county that added fluoride started having fewer cavities than neighboring areas that hadn’t yet added it.
She then further points out that it only causes health issues in much higher concentrations than what the US was getting our water supply up to. You know, like literally anything that you get too much of is bad for you. You can literally die from drinking too much plain water. Too much of anything will kill you.
Interesting. The article doesn’t actually say that fluoridation in water supplies is dangerous but that some researchers are questioning. Generally code for lack of scientific evidence. It also finds that early studies may have had a flawed basis (pretty much all early studies have been found wanting by later scientists) but doesn’t refute the results.The study mentioned in the article talks about high levels of fluoridation which I assume is in lab tests however these levels are not the case in water supplies.
The correct way forward is more actual science based studies.
The bad part about Rfk jr is he probably mixes in some science with quackery. I honestly assumed all his ideas are insane. That’s what’s so hard about being discerning right now, you have to be on one side or the other.
Fluoridated water doesn’t seem to make a difference on cavities. It does have neurological effects. It’s simply not acutely fatal. It’s already in our toothpaste. We don’t need it in our municipal water supply and the majority of developed countries don’t.
https://www.hsph.harvard.edu/magazine/magazine_article/fluoridated-drinking-water/
Thank you for the link. It’s worth mentioning that there are response letters to the publication you linked from other experts, the majority of which are critical and point out misinterpretations and omissions by the author. It’s always good to question, but in this instance it looks like the consensus amongst experts evaluating that publication is still that fluoridation is safe and improves dental health. The response letters can be read here.
Edit to add: The responses include a letter from the dean of the Harvard School of Dental Medicine stating that the publication is deeply flawed and requesting a retraction, and a similar condemnation from the students of the Harvard School of Dental Medicine. The article was given greater weight by being linked to Harvard, but in fact Harvard dental experts explicitly disagree.
This is a disingenuous take. This is a cherry-picked article that does not come to the conclusion you draw here. You also state “It does have neurological effects” but leave out the most important piece of information for that to be true: high doses.
Why should anyone trust what you say when you’re twisting the information to suit your narrative?
Counterpoint: I live in an area without fluoridated water, and I’m told that dentists can reliably identify people who didn’t grow up here by the state of their teeth.
deleted by creator
Anecdote in scientific debate? Wild
It’s actually exactly in line with what the link above says.
In other words, water fluoridation might not make much difference for adults, but it can for children.
The link above is not reputable and was directly refuted by, among others, the American Dental Association, the American Dental Education Association, the American Association for Dental Research, the American Academy of Pediatrics, and the Harvard School of Dental Medicine itself. From the response letter signed by the dean of the HSDM:
The magazine article states that CWF “does not appear to have any benefits in adults” based on the results of the Cochrane systematic review. However, the Cochrane review did not make this conclusion. Rather, the review specifically states “We did not identify any evidence, meeting the review’s inclusion criteria, to determine the effectiveness of water fluoridation for preventing caries in adults.” Due to the lack of studies that met the inclusion criteria, the Cochrane authors were not able to make any conclusion on the effect of CWF on adults. In fact, there are studies that were not included in the Cochrane review that demonstrate a caries preventive benefit of CWF in adults.
See the letter I linked for the studies it’s referencing with a demonstrated benefit to adult teeth. The Cochrane review’s inability to conclude whether there was a benefit or not was a limitation of the Cochrane review’s inclusion criteria, and not an absence of studies indicating a benefit.
Not sure why you’re being downvoted. The anecdote happens to parallel the scientific consensus, but “I’m told that dentists can tell” isn’t an appropriate argument when discussing medical research.
The internet do be like that sometimes, egos and the uninformed run free
Your link is more or less an opinion piece from a geneticist, so this isn’t even her field of study.
All her health issues she points out are for fluoride concentrations over triple the amount that tap water is brought up to.
The reason it’s usage spread across the country was because while the entire country had access to things such as fluoridated toothpaste, counties and cities that started fluoridation of their water supplies consistently had fewer cavities than areas that didn’t fluoridate the water. This alone outlines the glaringly obvious flaw in her argument.
Further still, while the US adds fluoride to the tap water in a concentration to reach 0.5mg to 0.7mg per liter of water (a couple drops per 50 gallons), natural drinking water for over 20% of the world is in concentrations well over that (to be clear, being well over that can cause health issues. Too much of anything can cause health issues.)
In other words, there is no evidence that this low concentration of fluoride causes health issues. There is loads of direct evidence that it reduces cavities. Plus, this woman from your opinion piece is talking out of her field. Not to mention that 21% of the world’s drinking water supply naturally already falls within the recommended range of what the US takes theirs up to. It’s just that most of the US water supply naturally falls below that amount.
No, the reason fluoridation in water is widespread is because fluoride is produced far more than there is market to sell it otherwise.
Sounds to me like municipalities are able and willing to use it because it’s cheap.
It’s cheap because it’s industrial waste that has significant cleanup and disposal costs. It was sold to municipalities after there was “research” that it helped tooth health, which it can in much higher concentrations than is in any water supply. But the reason it’s added to water is because the companies that otherwise would have to pay for clean up now make money off the waste product and can afford kickback funds.
By that reasoning, we should start putting all of our waste products in our water supply - since we weren’t able to sell them otherwise.
… Or perhaps there are other reasons to consider?
You seem to have confused me with someone that is for putting industrial waste, i.e. fluoride, in drinking water, I’m against it personally.
I appreciate that you put some reputable sources, rather than relying on a random tweet/post.
The source is not as reputable as it appears. The article in question is not from the Harvard School of Dental Medicine, and in fact was condemned by the HSDM. The actual dental experts at Harvard requested a formal retraction of the article: “Based on the significant flaws in the magazine article, we respectfully request that the article be rescinded, and a correction be published to clarify any misleading information that was provided.”
That’s because it’s just a bs opinion piece by some geneticist. There’s loads of very conclusive evidence and testing proving that it reduces cavities. Also, this geneticist points out that it only causes problems in doses far higher than what fluoridated tap water gets brought up to.
Keep in mind that they listed Canada as having non-flouride water, presumably based on the sole criteria that it’s not a national requirement. The split between communities with and without flouride in their water varies wildly by province.
It’s an opinion piece by a geneticist (so not a chemist or biologist or a field that could be related) and she ignores all the direct evidence that every city and county that added fluoride started having fewer cavities than neighboring areas that hadn’t yet added it.
She then further points out that it only causes health issues in much higher concentrations than what the US was getting our water supply up to. You know, like literally anything that you get too much of is bad for you. You can literally die from drinking too much plain water. Too much of anything will kill you.
Interesting. The article doesn’t actually say that fluoridation in water supplies is dangerous but that some researchers are questioning. Generally code for lack of scientific evidence. It also finds that early studies may have had a flawed basis (pretty much all early studies have been found wanting by later scientists) but doesn’t refute the results.The study mentioned in the article talks about high levels of fluoridation which I assume is in lab tests however these levels are not the case in water supplies.
The correct way forward is more actual science based studies.
Only 3% of Quebec’s population has access to fluoridated water and we have way more dental issues than any other province in Canada.
The bad part about Rfk jr is he probably mixes in some science with quackery. I honestly assumed all his ideas are insane. That’s what’s so hard about being discerning right now, you have to be on one side or the other.