MEDIUM BREED DOG FOOD: Royal Canin Medium Aging 10+ Dry Dog Food for medium senior dogs 10+ years weighing 23 to 55 lbs HEALTHY IMMUNE SYSTEM: Clinically proven antioxidants (vitamins C & E) and prebiotics for a healthy gut to help maintain a healthy immune system BODY CONDITION: Helps maintain ideal weight and muscle mass with optimal levels of protein HEALTHY AGING: Precise mineral and amino acid levels to support aging kidney and heart health PRECISE NUTRITION: Easy-to-digest proteins, vitamins and minerals, and a blend of fibers for optimal nutrient absorption MIXED FEEDING: Crunchy kibble dog food texture pairs well with Royal Canin wet dog food for added palatability and hydration QUALITY AND SAFETY: Attention to the very smallest details helps Royal Canin deliver precise and effective health nutrition for pets