Here in Portland, the issue of putting fluoride in water has come up. Which came as a shock to me; I've lived in so many cities, and they all did fluoride in the water, that I naturally assumed that every city in the Western world was already doing it. After all, it's proven to be a safe and cheap means of preventing tooth decay, and the only
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Oh right, it's because there is such a thing as fluoride poisoning. http://www.nejm.org/doi/pdf/10.1056/NEJM199401133300203
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Hang on, that's not quite accurate. Children aren't supposed to swallow fluoridated toothpaste, but almost all children's toothpaste does contain fluoride, and non-fluoridated toothpaste is unusual, so it's not exactly "the stuff they tell you not to let your kids use". The American Dental Association only warn against fluoridated toothpaste under age 2, and that's because of water fluoridation. Countries without water fluoridation don't stop even under-twos using fluoride toothpaste (the British Dental Association says "All children up to three years old should use a toothpaste with a fluoride level of at least 1000ppm (parts per million). After three years old they should use a toothpaste that contains 1350ppm to 1500ppm.").
I think it's probably also unfair to equate the harms of swallowing toothpaste (fluoride 1000-1500ppm, up to 5000ppm) with fluoridated drinking water (fluoride 0.7-1ppm).
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Clearly it would surprise you to learn that the vast majority of European countries don't add fluoride to water, then. Only 10% of the population in the UK have added-fluoride water, for example and that percentage is high compared to many other European countries.
This is an example of how carrying out, oh, I don't know, maybe 30 seconds worth of research would have saved you from looking rather, well, stupid...
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Whereas the reality is that it's only a small minority of cities that fluoride their water. Suggesting that the people of Portland may not actually be stupid for not wanting it. Because if putting fluoride in water is so great, why isn't everyone doing it?
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In terms of public health and epidemiology, fluoride in the water supply and folic acid in grain are net goods. Adding carbon monoxide, carbon dioxide, and soot to the air we all have to breathe-even if we do live off-grid-is a net harm.
Getting upset about fluoridation has a straining at gnats and swallowing camels aspect, at best. (At best because I suspect some of those no votes are coming from people who still think fluoridation is a Soviet plot.)
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