Hill's Prescription Diet i/d Digestive Care Chicken Flavor Dry Cat Food, Veterinary Diet, 4 lb. BagHill's Prescription Diet i d Digestive Care Chicken Flavor Dry Cat Food is specially formulated by Hills nutritionists and veterinarians to support your cats digestive health Helps improve digestion and stool quality Highly digestible nutrition with prebiotic fiber, clinically shown to help settle digestive upsets Prebiotic fiber helps promote growth of beneficial bacteria in the gut Clinically proven antioxidants help support a healthy immune system