Eukanuba Performance Sprint 21/13 is specially designed to provide the best nutrition for dogs experiencing short periods of intense activity. Tailored levels of carbohydrates help achieve a fast burst of energy while glucosamine and chondroitin sulfate with EPA help promote agile joints. An enhanced blend of fibers and prebiotics support sporting and working dogs' digestion. Performance Sprint also provides DHA for healthy brain function, as well as a tailored antioxidant cocktail to help defend against free radicals.