Our formula is thoughtfully made with USDA "fit for human consumption" whole foods including deboned chicken, brown rice, deboned whitefish, tomatoes, ground flaxseed, carrots, apples and blueberries. Our Just for Senior formula supports weight maintenance, hip and joint health and skin and coat health specifically targeted for your aging dog. Super5Mix recipes represents a synergistic combination of natural ingredients created with your dog's whole-health in mind. We start with premium, human-grade ingredients including pure protein sources and wholesome grains and combine them with our unique mix of complementary nutritional supplements we call it our 5 for Life Supplement System. We use fruits and vegetables for their antioxidant power, phytonutrient rich botanicals and herbs for wellbeing, and utilize omega-fatty acids for cellular function. We also include essential vitamins, chelated minerals and active probiotic cultures and guarantee calcium levels and add sources of glucosamine hydrochloride and chondroitin sulfate to help maintain healthy bones and joints. Plus, we ensure excellent nutrient digestibility through our Digestool confirmation studies - less nutrients in the stool, means more nutrients stay in the body.