Because the nutritional requirements for senior dogs are different from other life stages, BLUE Life Protection Formula Senior Large Breed Dry Dog Food features the ingredients to support their overall health and well-being and includes glucosamine and chondroitin to promote healthy joints in large-breed dogs. It contains the ingredients you’ll love feeding as much as they’ll love eating. BLUE Life Protection Formula dog food is a product of the Blue Buffalo company. Based in the United States, Blue Buffalo makes premium-quality pet foods featuring real meat, fruit and vegetables.Why We Love ItREAL MEAT FIRST: Blue Buffalo foods always feature real meat as the first ingredient. High-quality protein from real chicken helps your dog build and maintain healthy muscles. Plus they contain wholesome whole grains, garden veggies and fruit.FOR LARGE BREED SENIOR DOGS: BLUE Life Protection Formula® Large Breed Senior Dog Food contains glucosamine and chondroitin to help support joint health and overall mobility with the essential proteins and carbohydrates to help maintain energy requirements for a healthy lifestyle..WITH LIFESOURCE BITS®: This formula contains BLUE’s exclusive LifeSource Bits a precise blend of antioxidants, vitamins and minerals carefully selected by holistic veterinarians and animal nutritionists, to support immune system health, life stage requirements, and a healthy oxidative balance.A NATURAL DOG FOOD: Formulated for the health and well-being of your dog, BLUE dry dog foods are made with the finest natural ingredients enhanced with vitamins and minerals. BLUE contains NO chicken (or poultry) by-product meals, corn, wheat, soy, artificial flavors or preservatives.About Blue BuffaloBLUE Buffalo's True Blue promise is the pillar of their business, straight to every customer; the finest natural ingredients, and no chicken/poultry by-product meals, corn, wheat, soy, artificial preservatives, colors or flavors. BLUE Buffalo is the only food made with unique Lifesource Bits; a precise blend of vitamins, minerals and antioxidants created by veterinarians and animal nutritionists. With recipes for all tastes and diets, including limited ingredient diets, high protein, grain-free, wholesome grains, and exotic proteins, BLUE Buffalo always starts with real meat, and ends with good health.