To use this Catit canned cat food topper, simply open a can and serve it alongside your cat's regular food. You can give it as a daily treat or a meal enhancer. Make sure to store the unopened packs in a cool, dry place. Once opened, refrigerate the remaining food and use it within a couple of days. Keep an eye on your cat's reaction to the food and adjust the serving amount based on its appetite and dietary needs. Enjoy watching your cat savor every bite of this delicious food topper!