Royal Canin Size Health Nutrition Medium Aging 10+ Dry Dog Food A Selection Of Nutrients To Support Healthy Aging In Medium Breed Dogs. Contains Epa-Dha And An Exclusive Complex Of Antioxidants To Help Support Cellular Health. Helps Maintain Healthy Bones And Joints In Aging Medium Breed Dogs. Contains Specific Nutrients For A Shiny Coat And Healthy Skin. Helps Facilitate Intestinal Transit With An Adapted Fiber Content And Contributes To Good Stool Quality With Proteins Selected For Their High Digestibility.