Processing Fruit in a Nutribullet?

I need to know if a banana needs to be peeled before using? Does an orange need to be peeled? I would assume an avocado needs to be peeled and the pit removed. Also, what about lemons and limes? There was nothing I could find in the books to say. I only learned what seeds in fruits to avoid and some of the drinks say to core the pear or apple when making the drinks. I hope I didn't miss the answers to these questions. I just got my Nutribullet and can't wait to try it.

By Carleen