Utah appears to be the first state ready to put a full ban on fluoride in public water systems under a bill that doesn’t allow cities or communities to decide whether to add the cavity-preventing mineral.

A bill before the governor would prohibit adding fluoride to water systems. The move could affect children’s health, experts warned.

Utah could soon become the first state in the US to ban fluoride from being added to public drinking water, after members of the state legislature approved a bill that would do so. The bill, HB81, was passed by the Utah House of Representatives on February 7 and by the State Senate on February 21.