12 Steps to Whole Foods is a great way to help address many autoimmune issues as it focuses on eating whole foods, eliminating processed foods and refined sugars and just fueling your gut (where a lot of your immune system is) with good clean real plant and food sources that are friendly to your body and that it loves and needs to be well.
12 Steps to whole foods does not follow the AIP (Auto Immune Protocol) diet. You can read what Robyn's stance on Paleo or AIP is here