Elevated fluoride levels in drinking water, especially during pregnancy and early childhood, may negatively impact children's ...

For decades, governments have added fluoride to drinking water to protect teeth. But science is never that simple.

Elevated concentrations of fluoride can occur in well water, and in some countries, it is added to drinking water to counteract caries in the population.

Fluoride occurs naturally in water, soil, food and other sources. In 1946, the city of Marshall became the first city in Texas and one of the first three in the U.S. to add it to water to prevent ...