Not all dogs have the same food allergies. In order to identify the best dog foods for food allergies, you have to first understand all about the food allergies and what is exactly causing these food allergies in your particular breed of dog. Many different terms are used invariably these days to identify the food allergies and to understand what is actually causing them. The term allergy is basically used to describe an immunologic reaction to food allergens and requires exposure to an allergen in order for the symptoms to present by itself. Food intolerance on the other hand occurs only when exposed to certain food stuffs and does not have anything to do with the immune system. Both tolerance and allergy produce a similar set of symptoms and hence it is often difficult to differentiate between the two of them.
Food allergies in dogs present themselves differently than in the case of humans. In dogs food allergy presents itself on the skin and is mostly seen as a continuous itching sensation. It also produces symptoms such as chronic or recurrent ear and skin infections, diarrhoea, vomiting or excessive acidity. In some cases symptoms of allergies begin when then the dogs are very small that is when they are less than a year old. In other cases, symptoms of allergies can present itself at any time during the course of a dog’s life.
Dogs with food allergies are mostly allergic to protein that is present in the food in large quantities. Some dogs are also sensitive to beef, dairy, wheat and chicken .The development of food allergies usually take a lot of time. In order to diagnose food allergy in dogs, food trial is incorporated using a novel protein source or hydrolyzed protein. Hypoallergenic food options comprise of venison, potato, duck, pea and even kangaroo.