The Purina HA vegetarian formula for dogs uses hydrolyzed proteins, broken down into small particles to minimize adverse reactions in dogs. It provides a unique source of carbohydrates and includes antioxidants for optimal nutrition. The proteins used are of high quality, and the food is highly digestible. The Purina Pro Plan Veterinary Diets HA Hydrolyzed formulas ensure a delicious taste while meeting the specific needs of sensitive dogs with carefully selected ingredients.