The Reintroduction Phase of the Autoimmune Protocol (AIP)

How to Expand Your Diet Safely and Build Your Personalized Template

The Reintroduction Phase is the final and most transformative step of the Autoimmune Protocol. This guide explains what reintroduction is, how to know when you’re ready, how to test foods safely, and how to interpret reactions with confidence. You’ll learn how reintroduction turns AIP from a temporary elimination diet into a flexible, personalized way of eating, including guidance for both Core AIP and Modified AIP pathways, gray-area foods, symptom tracking, and building your long-term AIP template.