Feeding your cat this Purina Pro Plan dry cat food is easy. Just follow the feeding guidelines on the bag, which are based on your cat's age, weight, and activity level. Make sure your cat always has access to fresh water. Store the food in a cool, dry place to keep it fresh. If you're switching your cat's food, do it gradually over a week or so to avoid digestive upset. Keep an eye on your cat's weight and health, and adjust the amount of food as needed. If you have any concerns about your cat's diet or health, consult your veterinarian.