Complete and balanced nutrition for large breed senior dogs (weighing more than 50 lbs. and five years and older). Eukanuba Large Breed Senior Dog Food is made specifically for the unique nutritional requirements of Large Breed Mature Dogs with a proprietary carbohydrate blend that provides sustained energy which helps maintain healthy activity levels, chicken protein to help build and maintain lean muscle mass for top body condition, L-carnitine to help burn fat and maintain a healthy weight, and glucosamine and chondroitin sulfate to support healthy joints. Eukanuba Large Breed Senior Dog Food is a scientifically advanced formula for peak nutrition. High Quality ingredients offer healthy benefits: DentaDefense - 3D DentaDefense is proven to reduce tartar build-up in 28 days. Optimal Digestion - Fiber from a blend of natural beet pulp and prebiotic FOS promotes nutrient absorption and digestive health. Immune Health - Antioxidants help promote your dog's immune system and keep it strong. Strong Lean Muscles - High quality animal-based proteins help build strong, lean muscles to target optimal body condition. Strong Bones - Contains calcium to promote strong bones. Optimal Weight - Excellent nutritional balance of fats, carbohydrates, vitamins and minerals and protein. Skin & Coat - Contains OmegaCoat, guaranteed optimal levels of Omega 6 and 3 fatty acids. * What is prebiotic FOS and how can it improve your dog’s health? FOS (fructooligosaccarides) is a natural ingredient that beneficially stimulates the growth of good bacteria in a d�g’s digestive tract. The health of the digestive tract and keeping it balanced is the key to optimum nutrient absorption and a strong immune system. Eukanu�a’s clinically proven prebiotic FOS helps keep bad bacteria in balance by increasing good bacteria. Striking the right balance between good and bad bacteria is how FOS helps to promote good health in your dog by optimizing nutrient absorption and promoting a strong immune system.