Gut and Physiology SyndromeCompanion volume to the bestselling Gut & Psychology Syndrome the book that launched the GAPS diet which has been translated into 22 languages and sold more than 300,000 copies. Since the publication of the first GAPS book, Gut and Psychology Syndrome, in 2004, the GAPS concept has become a global phenomenon. People all over the world have been using the GAPS Nutritional Protocol for healing from physical and mental illnesses. The first GAPS book