During the crucial growth stage of your dog's life, marked by significant physical changes and new experiences, their diet plays a vital role in ensuring optimal health and development. ROYAL CANIN Giant Junior is meticulously formulated with a patented blend of antioxidants, including vitamin E, to bolster your puppy's developing immune system. With an ideal energy composition, this food supports the rapid growth rate typical of the second phase of development in giant breed puppies. Additionally, ROYAL CANIN Giant Junior promotes bone and joint health with a balanced mix of minerals like calcium and phosphorus, essential for strong bone mineralization and joint support.