Purina One +Plus Hairball Formula Chicken, Optimize meals with Purina ONE Indoor Advantage Senior 7+ Natural With Added Vitamins, Minerals & Nutrients adult dry cat food. With real chicken as the #1 ingredient, this high protein cat food delivers targeted nutrition for senior cats ages 7+. Each Purina cat food cup supplies 37 grams of protein for strong muscles, including a healthy heart. Our Purina ONE indoor cat food contains 0 percent fillers, and four antioxidant sources in this cat dry food support a strong immune system. The crunchy kibble with calcium supports strong teeth and healthy gums, and we include a natural fiber blend to help minimize hairballs. Purina One +Plus Hairball Formula Chicken, 16 lb Bag Purina indoor cat food made with real chicken as the #1 ingredient to support strong muscles, including a healthy heart High fiber cat food made with high-quality nutrients and glucosamine helps support the health of cats age 7+ A natural fiber blend in Purina indoor dry cat food helps minimize hairballs Adult cat food includes four antioxidant sources to help support a strong immune system in a crunchy kibble with calcium for strong teeth and healthy gums Hairball control cat food features a great taste and deliciously crunchy bites with no artificial flavors or preservatives