Your Large Breed puppy's first two years of development help lay the foundation for a healthy, active life. That's why every bite of Purina Puppy Chow Large Breed Formula brand puppy food is made to support large breed puppies from the inside out. Plus, every bowl contains a taste that puppies love so that you can be sure he is getting all of the nutrients he needs at every meal. Made with calcium, phosphorus and Vitamin D to help support healthy bone and joint development in large breed puppies. Contains 100% of the essential vitamins & minerals plus DHA, to help your large breed puppy grow healthy and strong every day. Packed with high quality protein to help support growing muscles.