To use this Royal Canin cat food, simply open the pouch and serve it to your adult cat. You can feed it directly or mix it with other dry cat food. It's recommended to feed according to your cat's age, weight, and activity level. Keep in mind that this food is designed for adult cats aged 1 to 7 years, so don't feed it to kittens or senior cats. Store the unused pouch in a cool, dry place. If you have an open pouch, cover it and refrigerate it, and use it within a day or two to keep it fresh.