Ultra Dog Superwoof understands that as your dogs reach their senior years, their nutritional needs begin to change. Senior dogs need a crucial balance of nutrients to help maintain vibrancy, mobility and radiant good health. Ultra Dog Superwoof dry dog food, for senior dogs, is a high quality dog food, scientifically developed by a veterinarian and pet nutritionist, with special attention given to protein, fat and certain essential vitamins. The primary objective with feeding senior dogs with Ultra Dog Superwoof dry dog food is to support your dog's body through the aging process.