The fermentation of FODMAPs by bacteria in the bowel (known as the production of gas) is a normal part of digestion.
FODMAPs are carbohydrates found in food that are highly fermentable.
FODMAP is an acronym for Fermentable, Oligosaccharides, Disaccharides, Monosaccharides, Polyols.
For people with IBS however, the increased production of gas that can occur with eating foods high in FODMAPs may provoke symptoms such as excess gas, abdominal bloating and distention, and abdominal discomfort. Some FODMAPs can also cause loading of water in the bowel when consumed in larger amounts. Loading of water in the bowel may also provoke IBS symptoms in some people, including bowel urgency and diarrhoea. Reducing the amount of high FODMAP foods in the diet is an approach that can help improve IBS symptoms for some people.