Royal Canin Giant Adult dry dog food is tailored to support your dog’s commanding presence and lifestyle. This giant-breed formula contains glucosamine, chondroitin, and EPA/DHA to help keep bones and joints healthy and strong. An exclusive complex of antioxidants supports cellular health. Heart-healthy nutrients like taurine help keep big hearts healthy. High-quality proteins and a blend of fermentable and non-fermentable fibers help support optimal digestive health. Plus, the extra-large kibble encourages chewing, so big dogs can properly digest their food.