This varies among states, ranging from 8.5% of the population in Hawaii to 100% of the population in Washington, D.C. Water fluoridation is not mandatory, and while there is a recommended fluoride concentration in drinking water (0.7 milligrams per liter ...

Florida's Surgeon General spoke on Winter Haven's community water systems, a week after the City Commission voted to remove fluoride from the water.

Florida's surgeon general, Dr. Joseph Ladapo, cited developmental concerns from higher levels of fluoride than are found in most U.S. water supplies.