West Virginia Gov. Patrick Morrisey signed a bill into law this week that bans some artificial dyes as well as two preservatives from foods sold statewide.

The West Virginia Legislature passed a ban on food dyes in a confluence of interests between pro-Trump lawmakers and food safety advocates. Some grocery shoppers worry it will mean dwindling choices.

Union leaders expect layoffs following the new bill banning food dyes passed by the West Virginia state legislature on March ...