Serve your senior dog meals that combine nature and research for results you can see with Purina ONE Plus Vibrant Maturity Adult 7 Plus Formula dry dog food for senior dogs crafted with MCT-rich vegetable oil to nourish mental sharpness. Chicken is the number 1 ingredient, helping create a high protein dog food that supports strong muscles, including a healthy heart. Four antioxidant sources offer immune support for dogs and natural sources of glucosamine for dogs help dog joint health. All that wholesome goodness comes together for a premium dog food that supplies 100 percent complete and balanced nutrition for adult dogs. Plus, Purina ONE Vibrant Maturity dog food is made with 0 percent fillers, meaning every ingredient has a purpose, and it features a highly digestible formula, so more nutrition goes to work inside your dog. Watch your pal thrill over the combination of protein-rich, meaty morsels and crunchy dog kibble to the very last bite.