
Blood tests in dogs have an accuracy of only around 50 percent. Hypoallergenic diets are therefore an important diagnostic tool for veterinarians and dog owners whose dogs suffer from allergies, helping to improve their quality of life.
A hypoallergenic diet can be used to gradually determine which proteins a dog is allergic to or which food allergy it has.
As a rule, the dog is fed exclusively with the hypoallergenic diet for several weeks. Afterwards, during the so-called "challenge phase", another ingredient is added, e.g. chicken. If the dog develops symptoms, this indicates that the dog is allergic to chicken.
Very important: If an elimination diet is being used to determine which ingredients are causing symptoms, consistency is crucial. During this time, the dog should receive only the recommended food – treats, chews or table scraps can also skew the results.
Hypoallergenic therapeutic diets with a single-protein source contain only one animal protein source. For a hypoallergenic elimination diet, this protein source must be new to the dog, meaning it has not been fed previously. Some manufacturers use exotic meats such as venison or kangaroo.
Insect protein can also be used.
The unfamiliar protein source is usually complemented by a few other carefully selected ingredients. The simpler the recipe, the easier it is to determine what a dog is allergic to.
Hypoallergenic dog food with hydrolyzed proteins is often used in particularly persistent or unclear cases of food allergies and differs significantly from conventional dog food due to the extensive processing of its ingredients.
In hydrolyzed dog food, the proteins it contains are broken down into very small components. The idea behind this is that the immune system should no longer recognize the proteins as allergens, or only recognize them to a much lesser extent, and therefore trigger little or no immune response.
