Science Diet Indoor Cat Adult cat food. Its a complete and balanced food designed for cats living primarily indoors and is ideal for spayed or neutered cats. This food is formulated with low level of fat and calories to help maintain a healthy weight. Its innovative fibre technology helps control and avoid the formation of hairballs by moving hair through your cats system. Science Diet Indoor Cat Adult is formulated as a complete and balanced daily nutrition for adult cats providing essential nutrients to nourish your cats skin and coat.