Advance Veterinary Diets Canine Food Intolerance Duck is a complete dietetic food, specially formulated for adult dogs with food intolerances. With a limited selection of protein sources (duck) and carbohydrates, it helps to reduce adverse reactions to specific ingredients and nutrients. It is ideal for dogs suffering from dermatitis, enteropathies, and gastroenteritis associated with food allergies or intolerances. It is recommended to consult a veterinary surgeon before use or before extending the period of use.