Food allergies are something that is difficult to identify unless one is well aware of the baseline information with regard to this type of allergy. The main symptoms of food allergies in dogs include the facial itching, limb chewing, belly itching, recurrent ear infections or skin infections.
Since the dogs consume lot of prepared food materials including various kinds of proteins, fillers, coloring agents and more; in the commercial food materials, the incidences of food allergies are more than one can imagine. Allergic reactions mostly involve the skin or the gastro intestinal tract.