First, pick a particular type of food, such as a grain-free kibble and rotate the protein sources within that type. For example, switch from Zignature Turkey, to Zignature Lamb, to Zignature Pork and so on. By rotating protein source(s), it is also less likely your pet will develop an allergy or intolerance to a certain protein. You can also rotate different types of food, such as varying from kibble, to canned, to raw food. This type of rotation enables the pet to receive the benefits of each variety of food. It is always important to feed a high-quality nutritionally complete and balanced diet when rotating different types of food.