Autoimmune diseases such as rheumatoid arthritis, lupus and thyroid disorders are painful, disruptive and often devastating. At their core, they have one thing in common: an out-of-control immune response, linked with systemic inflammation. The AIP diet focuses on eliminating these foods and replacing them with health-promoting, nutrient-dense foods that are thought to help heal the gut, and ultimately, reduce inflammation and symptoms of autoimmune...