At age seven (age five for some Large Breeds), a dog's nutritional needs start to change. He may need fewer calories to compensate for a slower metabolism. At the same time, protein may become more crucial than ever, to help maintain lean muscle mass. Fortunately, Purina ONE Senior Protection Formula addresses the nutritional needs of the older adult dog. It provides optimal protein levels to help senior dogs maintain lean body mass for better muscle mobility. Antioxidants Vitamins E and C and selenium help fight the stresses of aging in older dogs and help support joint health.

No Supplements Necessary
All Purina ONE diets are formulated to provide complete and balanced nutrition. Additional vitamins, minerals or other supplements are not required unless specified by a veterinarian.