Purina ONE formulas combine nature and research for results you can see in your cat. Thanks to high-quality ingredients, including natural prebiotic fiber, Purina ONE® Salmon & Rice Formula nurtures your cat’s digestive microbiome along with their whole-body health. It’s also made with real salmon as the #1 ingredient, and the combination of tasty, crunchy bites and tender, meaty morsels will keep your cat coming back meal after meal. All Purina ONE dry food and wet food options are veterinarian recommended. From a shiny coat and healthy energy to bright eyes and a strong immune system, you could see a difference in your cat in 28 days when you feed Purina ONE.