Intro Ingredients Products Ingredient Guide All Ingredients Red #40 Red #40 Red #40 is an artificial food dye suspected of causing hyperactive behavior in children. 1 Matching Products MorningStar Farms Veggie Dogs Related Articles Quiz: Veggie Burger or Dog Food? Fake Meat, Real Chemicals Campaign Fake Meat from Across the Pond Are the new “plant-based” meats actually good for you?