If you have a large breed puppy with a robust physique, try PURINA® PRO PLAN® DOG Large Robust Puppy with OPTISTART®. This complete puppy food will help your robust-breed puppy make the most of life, supporting his health as he begins the journey to adulthood. Your puppy has his own nutritional needs as a large, robust breed, and PURINA® PRO PLAN® DOG Large Robust Puppy with OPTISTART® contains these nutrients at the appropriate levels for his size and age. It also contains colostrum, which is found in mother's first milk, to help support his long-term health. This complete dry dog food with OPTISTART® helps support healthy joins, long-term health, their developing immune system, and their dental health. It contains high quality pieces of chicken, and it can also be fed to lactating or gestating bitches.