A new Arizona law forbids certain ingredients from being passed around at school. The law bans certain ingredients from being served to children in schools, including food families send with their kids. When you pack food to be distributed in class, that’s a different story. Sprinkles might contain red dye 3 or red dye 40, both of which are no-go’s under the new law. The USDA implemented regulations as well prohibiting many ultra-processed foods from schools so it’s a lot to keep up with.