Using this Purina Pro Plan cat food is easy. Just open the can and serve it to your adult cat. You can feed it as a regular part of their diet. Make sure to provide fresh water alongside the food. When it comes to storage, keep the unopened cans in a cool, dry place. Once opened, refrigerate the remaining food and use it within a day or two. If your cat has any specific health issues, it's always a good idea to consult your vet before making any major changes to their diet.