Royal Canin Size Health Nutrition Giant Adult 15+3 kgROYAL CANIN Giant Adult is suitable for adult dogs that weigh 45kg and over and is specially formulated with the nutritional needs of giant dogs like yours in mind. Because of your dogs size, its important for it to receive beneficial nutrients that contribute to maintaining healthy bones and joints so it can effectively support its own body weight. Thats why ROYAL CANIN Giant Adult food contains glucosamine and chondroitin to support your dogs