The ADA also describes fluoride, a mineral, as "nature's cavity fighter." Aside from water sources, it can be found in rocks, soil and plants and, as a result, has made its way into our foods and ...

Given the concern that fluoride in drinking water might affect children’s intelligence, the addition of this mineral to ...

Fluoride is a mineral that naturally occurs in water sources such as lakes and rivers, and is even naturally present in some foods and beverages, according to the American Dental Association (ADA).