Is fluoride considered a poison in most European countries?
Fluoridated water helps strengthen our teeth and support oral health. But are we getting too much of a good thing? Some European countries have banned fluoride in drinking water because of its potential toxicity.
The exact reasons for the policy change depend on who you ask. Some sources say it's because the proclaimed benefits weren't panning out or because the logistics just weren't practical for certain areas. Others claim it's because, technically, fluoride can be poisonous. At what dosage level does fluoride become harmful? How much is in the U.S. water supply?
Full story at HowStuffWorks.com.
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