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.

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.

I appreciate that you put some reputable sources, rather than relying on a random tweet/post.

Only 3% of Quebec's population has access to fluoridated water and we have way more dental issues than any other province in Canada.

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.