Food allergy in dogs causes chronic skin and gastrointestinal welfare harm that is often mismanaged, requiring a strict dietary elimination trial for accurate diagnosis.
Food allergy causes chronic, persistent itching and gastrointestinal discomfort that significantly impairs welfare. Dogs with undiagnosed food allergy undergo repeated antibiotic courses for secondary skin infections, cycles of corticosteroids, and years of ineffective treatment while the underlying dietary trigger goes unidentified. The diagnostic gold standard - a strict dietary elimination trial - is time-consuming and requires complete owner compliance: even a single treat or flavored medication containing the allergen can invalidate the trial. The welfare reward for accurate diagnosis is significant: complete elimination of the dietary trigger typically produces dramatic improvement in itching and skin health within 8-12 weeks, providing sustained relief without ongoing medication.