PURINA® PRO PLAN® Original Adult Dry Cat Food with OPTIRENAL® is a complete dry food scientifically formulated for adult cats. The diet contains all the nutrients your cat needs for everyday vitality and long-term health. It includes OPTIRENAL®, a protective nutrient blend that helps promote healthy kidneys. The formula has been expertly balanced to help support your cat's all-round health. It combines essential nutrients including vitamins A, C and E for a strong immune system and a healthy skin and coat. The recipe is also high in protein to support strong muscles and healthy weight, while the crunchy kibble is proven to protect teeth from plaque and tartar build-up.