Choose high-quality, fine-tuned nutrition and help your large breed puppy achieve a healthy growth rate and age-appropriate strength and endurance with Purina Pro Plan Sport Large Breed Puppy Development 30/18 Chicken and Rice high protein dry dog food. Formulated for athletic large breed puppies, this Purina large breed puppy food promotes concentration, problem-solving and trainability for excellence in the field, in the show ring, and at home. It's also formulated with antioxidants for dogs to support your puppy's developing immune system. Nutrients like calcium, phosphorus and essential vitamins promote healthy bone growth. Plus, this Purina Pro Plan puppy food features real chicken as the number one ingredient and high-quality protein to build lean muscles and a healthy heart. You can be confident in the quality and safety of the ingredients in every Purina Pro Plan formula because they're proudly manufactured in Purina-owned U.S. facilities. Try this puppy food today, risk-free.