PRUINA® PRO PLAN® Original Kitten Dry Cat Food with OPTISTART® is a complete dry food scientifically formulated for kittens. The diet contains all the nutrients your kitten needs to grow into healthy adulthood. It is suitable for all kittens, from the age of 1 to 12 months. The formula has been expertly balanced to provide nutritional support for your kitten's first year of life. High in protein for healthy growth, the diet contains OPTISTART®, an ingredient blend that includes colostrum - a special nutrient from mother's first milk that's rich in antibodies and supports a strong immune system.