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Fluoride in Drinking Water: Potential Harm and Recommended Levels
Fluoride in drinking water helps strengthen the teeth, as acknowledged by most dentists. However, excessive fluoride consumption, whether from high fluoride concentrations or prolonged exposure to low levels, has the potential to disrupt thyroid hormone output and metabolism. The recommended safe level of fluoride in drinking water set by the Center for Disease Control is 0.7 milligrams per liter, aimed at preventing tooth decay and promoting good oral health. It is advised to have tap water tested to determine the fluoride level, with websites available to provide such information based on the city of residence.