What are the adverse effects of fluoride?
Too much fluoride can cause a disease called "fluorosis." At high levels of exposure, the beneficial effects on tooth structure are negated, and the tooth actually becomes weaker. At still higher exposures, the skeletal system is affected, and chronic exposure can be crippling. Skeletal fluorosis is usually restricted to tropical and subtropical regions, and is frequently exacerbated by factors such as calcium deficiency or malnutrition. Fluorosis is widely prevalent in regions of China, India, the Middle East, and Africa. The high incidence of fluorosis in India is due to the fact that large areas of the country contain water supplies with some of the highest known levels of fluoride in the world.

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1. What are the beneficial effects of fluoride?
2. What are the adverse effects of fluoride?
3. How can I be exposed to fluoride?
4. What amount of fluoride is optimal?
5. What should I do if my well water contains too much fluoride?