Vetsupply: Hill\'s Prescription Diet i/d Canine Digestive Care with Chicken Dry formula is basically formulated for gastrointestinal health of dogs. Food allergies, lack of digestive enzymes and dietary indiscretion result into poor digestion in your dog. Canine Gastrointestinal Health dog food improves digestion efficiency. The easily digestible food with various nutrients helps build and repair tissues and aids in obtaining energy for daily activities.