Utah has become the first state to ban fluoride in public drinking water, despite widespread opposition from dentists and national health organizations.

Republican Governor Spencer Cox signed a bill into law Thursday banning fluoride from the state's drinking water becoming the first to do so.

Utah’s Republican Gov. Spencer Cox signed a law Friday to prohibit fluoride in public drinking water amid a recent surge of concern over the mineral additive—despite decades of backing by public health officials—fueled in part by Health Secretary Robert F. Kenney Jr.’s claims of its potential health risks.