Large, robust-breed puppies have their own nutritional needs. That's why Purina Pro Plan Puppy Large Robust Optistart with Chicken Dry is a balanced large breed puppy food formulated just for your pet. Other key features include: With colostrum, that helps support your puppies natural defences and long-term health so they can face whatever challenges they face each day. Specially formulated to help care for your puppy's teeth Enable developing dogs' immune systems to react more efficiently Combination of key nutrients that help to support healthy joints for your puppy's active lifestyle The nutrients in this complete dry dog food have been specifically adjusted for your dog's size and age Also suitable for gestating or lactating bitches Contains tasty high quality pieces of chicken.