Stomach cramps, pain, discomfort, flatulence, diarrhoea and constipation - "irritable bowel syndrome" is the collective term for these symptoms, from which more than 15 million people in Germany now suffer. The experienced nutritional scientist Benjamin Brown dispels the myth that digestive problems can usually not be medically explained. On the basis of the latest scientific findings and with an individually adaptable five-step plan, he shows the reader tested, safe ways to restore intestinal health and thus improve his own quality of life in the long term.