Your adult cat needs a food that promotes healthy digestion, a shiny coat, supple muscles and a healthy immune system. HILL'S SCIENCE PLAN Adult dry cat food is made with high quality, easily digestible ingredients and is carefully formulated to meet the energy needs of cats during their prime.HILL'S SCIENCE PLAN Adult is a cat food made with high-quality ingredients that provide vitamin E and omega-6 fatty acids to nourish your cat's skin. Because this premium food is full of high-quality protein, it also helps your adult cat maintain supple muscles. In addition, this cat food for adult cats has food chunks that provide your cat with essential taurine and balanced minerals to promote heart health and bladder and kidney function.