What is IBS IBS (Irritable Bowel Syndrome) is a common gut disorder and it is by far the most common illness diagnosed by gastroenterologists in the UK and USA accounting for approximately 65% of all cases referred from a GP

Introduction It is not clear what causes IBS, although there are three main theories - food intolerance, post infectious IBS, and psychological factors Food intolerance Firstly, a food intolerance can produce irritable bowel symptoms, but not every person with IBS will have food intolerances