Food-related adverse reactions in dogs cause chronic skin and gastrointestinal symptoms that significantly impair quality of life, and accurate diagnosis through dietary elimination trials is essential.
Chronic food allergy causes persistent welfare suffering through constant pruritis, recurrent skin and ear infections, gastrointestinal discomfort, and the secondary pain of self-trauma from scratching and chewing. Dogs with undiagnosed food allergy may be treated with repeated courses of antibiotics or steroids that address the symptoms but not the underlying cause, exposing them to drug side effects without resolving the primary problem. Accurate diagnosis through a properly conducted elimination diet trial — requiring strict owner compliance to feed only the trial diet for 8-12 weeks — results in dramatic welfare improvement for dogs confirmed to have food allergy, often eliminating the need for long-term medication.