Pro Plan focuses on nutritional solutions for the specific needs of indoor cats--including controlling weight, hairball formation, and litter box odor. Maintains a healthy weight for less active indoor cats with 15% less fat than Pro Plan Adult Salmon & Rice Formula. Helps control the formation of hairballs when fed exclusively. Uses natural fiber to gently and efficiently move hair through the digestive tract. Formulated with a special fiber blend to help reduce litter box odor. Complete nutrition with antioxidants helps support a strong immune system. Provides high levels of protein to help cats lose fat, not muscle during weight loss to promote lean body mass for strength and ample energy. Specially formulated with vitamin A and taurine, essential nutrients for bright, healthy eyes and good vision. Help maintain a healthy skin and a lustrous, shiny coat from Purina's combination of omega fatty acids, plus vitamin A and high quality protein.