Advanced Nutrition's delicious food with 88% animal protein * will provide your cat with everything it needs. IAMS Advanced Nutrition dry food with tuna for cats from 1 year contains a blend of antioxidants and vitamin E to support your feline friend's immune system. The composition of food for adult cats is enriched with omega-3 and omega-6 fatty acids for healthy skin and shiny fur. Added taurine helps strengthen the heart muscle. All IAMS products for adult cats contain a modified fiber blend, including prebiotics and beet pulp, for healthy digestion and a quality, active life with tasty Advanced Nutrition foods.