Royal Canin uses the name Giant to refer to dogs whose adult weight exceeds 45kg. The Royal Canin Size Health Nutrition Giant range provides exclusive nutritional solutions to the specific requirements of giant dogs, specially formulated to help the maintenance of strong joints and a healthy heart.The exclusive to Royal Canin biscuit shape and size is developed to encourage ‘crunching’ to help slow down the rate of food intake and help to improve digestion.