When dogs are in the prime of their life, they'll need a premium pet food that can keep up. Hill's Science Diet Adult dry dog food uses a high quality protein source for lean muscles, natural fibers for healthy digestion and omega-6s for a beautiful coat. Specially formulated to make grown dogs come running for mealtime, this adult food provides the right balance of nutrients to help dogs live a happy, healthy life. Now there is even more to love with a special blend of prebiotic fibers and antioxidants, ActivBiome+ Multi-Benefit, to support digestion, immune system and organ health.