People don't even know fluoride in municipal water supplies is a waste product of fertilizer production.

There has never been a reason to drink fluoride because it works topically. Ingesting it has no benefit and causes unsightly fluorosis.

It is a poison if diluted enough doesn't really cause any problems just like diluting any poison enough.

The entire case for adding to water supply relies on no brushing or dental care because if you brush and have dental care there is no measurable difference by also having it in the water.

It is unnecessary and dumb to do in a modern country.

For your information if you think fluoridation of water is bad:

Fluoride in the water is the opposite of bad, it’s good for your teeth. It’s in toothpaste for a reason! There is no reasonable evidence that fluoride causes any major health problems, in fact, the fluoridation of water is dubbed as one of the largest public health accomplishments in a while. In addition, the fluoride added to water is miniscule, tiny, far far too low in concentration to be toxic. 0.7-1.2 mg / L is the range that most countries that implement water fluoridation add to their water supply. For reference, the WHO recommends 1.5 mg / L as the upper limit. Additionally, in many places, the groundwater has fluoride levels a bit higher than that.It also occurs in plenty of foods naturally too (fruits, seafood, spinach, etc.)

Some more information of fluoride:

https://my.clevelandclinic.org/health/treatments/11195-fluoride

https://www.cdc.gov/oral-health/prevention/about-fluoride.html

https://www.sciencedirect.com/science/article/abs/pii/S000291652334718X

In many countries, particularly in developing nations, fluoridation of water is too expensive (since you need the infrastructure for it), and fluoride toothpastes are preferred instead. But in industrialised countries, where infrastructure for managing the water supply already exists, fluoridation of water is more effective.

Ireland and England both implement the fluoridation of water. In particular, 73% of Ireland’s population drinks fluoridised water

https://ukhsa.blog.gov.uk/2016/04/13/water-fluoridation-what-it-is-and-how-it-helps-dental-health/ (UK) https://pmc.ncbi.nlm.nih.gov/articles/PMC4081215/ (Ireland)

Additionally, so does Canada:

https://www.canada.ca/en/services/health/publications/healthy-living/fluoride-factsheet.html https://www.canada.ca/en/public-health/services/publications/healthy-living/community-water-fluoridation-across-canada.html

Other solutions to provide fluoride have also been pursued, such as in toothpastes (already mentioned), iodized salts, and milk. They each have varying effectiveness depending on the country.

TLDR:

• Fluoride added to water is too low to pose any significant health problems
• There are no studies to suggest that the 0.5-1.5 mg / L range that the WHO promotes is dangerous
• It's not just the U.S., fluoridisation of water is present in Ireland, England, and Canada
• For the countries that do not pursue adding it to water, fluoridation is done through toothpastes, iodized salts, and milk
• Different strategies of fluoridation are pursued because some are more effective than others for that given region (e.g. toothpastes are more viable than treatment of water in developing nations)
• Fluoride is already present in many natural sources (fruits, veg, groundwater, etc.) and is safe in the recommended low concentrations (need to reiterate this!)

Dammit. Why have I been drinking all this water then?

Damn it. I was gonna come in here and be like, "Ah, that's what big fluoride wants you to think, sheeple!"

You know, like a crazy person.

But it turns out the actual crazy people who truly believe that stupid shit are already out in full force.

My college teacher would be devastated

Obligatory

I'm going to post this again, because everyone needs to fucking understand that science is studying results and a process:

What about autoimmune diseases and inflammation? It looks like there might be a link, but they haven't studied it enough.

Based on the body surface area of humans and animals, and considering the metabolism and absorption of fluoride in rats, according to calculations, the WHO’s safety threshold for fluoride intake from drinking water (1.5 mg/L) corresponds to a fluoride concentration of 10 mg/L in the drinking water of rats. After 1 week of acclimatization, the 150 rats were randomly assigned to 5 groups (n = 30) and provided with drinking water containing 0, 10, 25, 50, or 100 mg/L of fluoride. Although 50 and 100 mg/L are not equivalent to the doses humans are exposed to in natural environments, they are commonly used in animal models of fluorosis and have been widely demonstrated to be robust in rat models of fluorosis [35,36,37]. According to the exposure mode and time of fluoride, it can be divided into three modes: fluoride treatment for 12 weeks (12 w), fluoride treatment for 24 weeks (24 w), and fluoride treatment for 12 weeks and 12 weeks of improve water(12 w12 wi) (Table S1). Rats were euthanized with isoflurane anesthesia at the end of the breeding period.

https://www.mdpi.com/2305-6304/13/2/95