To use this cat food topper, simply open a can and serve it alongside your cat's regular food. You can use it as a daily treat or a special meal enhancer. Keep the unopened packs in a cool, dry place. Once opened, refrigerate the unused portion and use it within a couple of days. Make sure to provide fresh water for your cat. And always monitor your cat's eating habits. If you notice any changes in appetite or behavior, consult your vet.