Veterinarians highly recommend nutrient-rich recipes such as Nutro Ultra Chicken, Lamb, and Salmon Puppy Food which are both healthy and provide balanced nutrition for your puppy. This healthy dog food recipe can also help your pet in creating and maintaining a strong and healthy immune system. This dry dog food is formulated using natural antioxidants such as cranberries, blueberries, and pomegranate. These powerful antioxidants work together to maintain a healthy immune system and also provide the best protection possible to your little pet. This nutrient-rich formulation is made using ingredients that have higher levels of DHA such as egg and salmon. Various studies have confirmed that DHA can promote higher brain functions and can also help in the cognitive development of the puppies so that they can learn things faster. The nutrients present inside this natural pet formula can also provide the most optimal levels of calcium to your growing little pet so that they can build sturdy teeth and bone structure.