The purple and blue are least healthy, they have more candy and sugar in them haha. The purple one used freeze dried blueberries (also such a good snack, and good for making jams or blueberry sauces without buying fresh blueberries, these keep for such a long time!) and the blue used dried blueberries (different texture than freeze dried, it has more of a chewy and wet mouthfeel).
Backlink: http://feeds.boingboing.net/~r/boingboing/iBag/~3/odeAKLuun_E/edible-crayons.html
