Florida Gov. Ron DeSantis signed a bill Thursday to ban fluoride in public water, making it the second state to do so.

With the stroke of a blue Sharpie, Gov. Ron DeSantis signed this year's "Florida Farm Bill," which among other things makes it against the law to fluoridate municipal water supplies.

Florida Gov. Ron DeSantis has signed a measure that prohibits local governments from adding fluoride to water systems