Perhaps one of the reasons that grain was thought of as a culprit of allergens is the belief that the original biological family of Canidae, the lineage of carnivorans that includes domestic dogs, wolves, foxes, jackals, coyotes, and many other extant and extinct dog-like mammals, did not eat grain; and this is only correct to an extent. The Canidae ate (aside from meat) ate nuts, fruit and grain too. In addition, these animals after attacking their prey, devoured their organs first. The stomachs (and other organs) contained what the prey had eaten themselves. Most of the prey were herbivores (plant material including grain of course) and frugivores