The company has pledged to ditch artificial colorings and flavorings from all of its cereals by the end of 2016. But those iconic rainbow-colored marshmallow charms might take longer to revamp.
Nestle says it's removing artificial flavors and dyes from its chocolate candies, and Hershey's says it's shifting to simpler ingredients. The moves come amid growing demand for natural food.
The petition to candy-maker Mars is motivated by concerns that artificial colorings can make some kids hyperactive. In Europe, natural dyes have now outstripped their artificial counterparts.