Royal Canin Giant Adult dog food is precise nutrition specifically made for extra-large breed dogs 2 years & older that weigh over 100 lbs. Tailored to support your dog's commanding presence and lifestyle, this formula contains glucosamine, chondroitin, and EPA/DHA to help keep bones & joints healthy & strong. An exclusive complex of antioxidants supports cellular health. Heart-healthy nutrients like taurine help keep big hearts healthy. High-quality proteins and fibre help support optimal digestive health. The extra-large kibble encourages chewing so big dogs can properly digest their food.