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.