Doctor Walls’s program became a sensation among people suffering from autoimmune diseases. The Protocol is the result of the author’s own search for treatment of exhausting symptoms that she experienced while battling progressive multiple sclerosis. The principles of the Paleo diet, combined with an exercise system and lifestyle recommendations, helped hundreds of thousands of patients significantly improve their quality of life. The three levels of the Walls Protocol allow readers to choose the Walls diet depending on where they are in their journey with the program: the Walls Paleo Diet if they are only starting, or a more advanced stage—Walls Paleo Plus, if they need more aggressive treatment.