Fluoride has been associated with bone cancer, osteoperosis, and lower IQs.

Fluoride in the form in which it is added to the water supply in about 50% of U.S. cities was once considered a toxic waste and is a by-product of aluminum manufacturing and fertilizer manufacturing. These industries who once paid to dispose of it, now get paid to dispose of it by selling it to your city. The fellow who orchestrated this legal manuever went to work for a fluoride-producing industry after leaving the U.S. government.

Because fluoride is collected from smoke stack scrubbers (among other sources), it often contains other heavy metals including but not limited to lead and mercury.