You'll need to get a premium puppy food to insure your puppy is getting the necessary nutrients it needs to grow and stay healthy. We use Diamond Naturals small breed puppy food. This can be found at almost any Tractor Supply Co. store and local Co-ops and farm supply businesses. If you want to change their diet/feed, we suggest you do this gradually, using their current feed mixed in with new feed. Slowly removing the amount of the old feed each day. We will give you a supply of their current food when you pick up your puppy.