Hill"s Science Diet Mature Adult Small Bites dog food provides precisely balanced nutrition for a visible difference in dogs who prefer a smaller kibble. It provides tested nutrition to restore youthful energy in 30 days and contains optimal levels of clinically proven antioxidants for a healthy immune system. It is made with high quality ingredients which are easy to digest and contains Glucosamine and Chondroitin Sulphate for healthy joints and improved mobility.