There are things you need to feed your iguana to keep it healthy. They like a variety of foods, so feed them more than a regular routine of foods. They get bored very easily and will fast when not expected. A wide variety must be given to be sure your iguana gets all the necessary nutrients. These are foods that they like.
Fresh vegetables are best.
If the vegetable is raw, it must be grated. Canned vegetables are ok, but never use frozen vegetables. You can feed your iguana any fruit except citrus or bananas. They especially like red fruit. Kiwi is a good source for potassium.