Royal Canin Size Health Nutrition Maxi Adult 5+ Dry Dog Food Adapted Content Of Nutrients To Help Maintain Vitality In Large Breed Dogs During The First Stage Of Aging. Contains An Exclusive Complex Of Antioxidants To Help Support Cellular Health. Helps Support Large Breed Dogs Healthy Bones And Joints Which Can Be Placed Under Stress By Body Weight. Helps Promote Good Digestibility With An Exclusive Formula Including Very High Quality Protein And A Balanced Supply Of Dietary Fiber. Enriched Formula With Omega-3 Fatty Acids (Epa-Dha) To Help Maintain Healthy Skin.