Helps support a healthy heart and immune system. Nurturing Formula: Formulated with a smart blend of nutrients for healthy overall development; Includes the Ulti-Pro Enhanced Protein System to help maintain a healthy heart and immune system; Delicious chicken & turkey flavors encourage a healthy appetite. Bite-sized morsels kittens love. Purina Kitten Chow Nurturing Formula - a healthy start & a smooth transition. Purina Kitten Chow helps nurture your kitten from the start with everything she needs for optimal growth and development. It contains the Ulti-Pro Enhanced Protein System to help maintain your kitten's immune system and support proper muscle development, including a healthy heart. To help ease the transition to adult food, both Purina Kitten Chow and Purina Cat Chow Complete Formulas start with the same great-tasting ingredients and have similar nutritional profiles so there's less chance of stomach upset. Growing up happy and healthy - that's the Purina Cat Chow way of life. Animal feeding tests using Association of American Feed Control Officials (AAFCO) procedures substantiate that Purina Kitten Chow Nurturing Formula provides complete and balanced nutrition for all life stages of cats. At Purina, we're unconditionally devoted to pets. We've dedicated 75 years to developing high quality products that satisfy the needs of dogs and cats.