Purina Pro Plan Lamb and Rice Dry Dog Food for All Ages Let your dog be choosy when you fill his bowl with Purina Pro Plan Brand Dog Food Small Bites 27/17 Lamb Rice Formula dry dog food. The nutrient-dense bite-sized dog kibble is designed for dogs who prefer eating smaller pieces and rice and oatmeal offer easily digestible sources of energy. Each serving contains high-quality protein including lamb as the first ingredient and the antioxidant-rich formula helps to support your dog s healthy immune system. Real meat in this nutritious formula helps provide for your dog s protein needs.