ROYAL 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 continued muscle, cartilage, and bone health. ROYAL CANIN Giant Adult food is formulated with an exclusive and balanced complex of antioxidants (such as vitamins A, E, and C) which help to neutralise the effects that free radicals that can have on your dogs cells. Amino acids such as taurine and L-Carnitine are also included in ROYAL CANIN Giant Adult food, they help to support your dogs circulatory function and cardiac health.Key Features/Benefits:Bone & joint supportAntioxidant complexCardiac health