Utah will become the first state to ban fluoride in public drinking water, despite widespread opposition from dentists and national health organizations. Republican Gov. Spencer Cox said he would sign legislation that bars cities and communities from deciding whether to add the mineral to their water systems.

Two Louisiana State senators have proposed a Bill that would stop water districts from adding fluoride to drinking water.

Governor Spencer Cox is set to approve Utah’s ban on fluoride in public water despite longstanding public health support for fluoridation. Experts warn the move could lead to more cavities, especially in vulnerable communities.