Final answer:
The USDHHS reduced the recommended level of community water fluoridation in 2015 to reduce the risk of fluorosis caused by excessive fluoride consumption.
Explanation:
The USDHHS reduced the recommended level of community water fluoridation in 2015 to reduce the risk of fluorosis, which is a condition caused by excessive fluoride consumption resulting in dental fluorosis. Fluoride is beneficial in preventing tooth decay, but excess exposure can lead to fluorosis, so adjusting the fluoride level in water can help balance the benefits and risks.
Learn more about Community water fluoridation and fluorosis here:
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