The Autoimmune Protocol, a restrictive elimination approach derived from paleo eating, is the best-known framework in Sarah Ballantyne's health and nutrition books. The Paleo Approach explains the programme's theory and removes a wide range of foods, including grains, legumes, dairy, eggs, nuts, seeds and nightshades, with the intention of later reintroducing foods according to individual tolerance. The Paleo Approach Cookbook translates those restrictions into recipes and meal planning, while later work such as Nutrivore shifts towards evaluating foods by nutrient density rather than by whether they fit a paleo label. Ballantyne's books are detailed, science-referencing and highly practical, but they advocate specific frameworks rather than offering a neutral clinical review. Useful discovery links include autoimmune-diet writing, paleo nutrition and nutrient-density guides. Readers managing diagnosed autoimmune or nutritional conditions may need professional guidance before adopting the more restrictive protocols. Read more Less