Dr Stephen John Middleton MA MD FRCP FAHE
Irritable bowel syndrome - The Cambridge approach to treating IBS
Some patients report specific food intolerances. Studies have been done to try and test these scientifically, but it has proven very difficult to get consistent results. There are however a number of conditions that are caused or provoked by specific food intolerances and are well substantiated such as Lactose intolerance which is an intolerance to milk sugar. People with this condition lack the enzyme (lactase) to required to digest the sugar lactose (lactase) which is usually present in the small intestine. If they ingest lactose it can not be digested and passes into the large bowel where the bacteria are fermented and cause production of large amounts of gas and acidic by products which produce diarrhoea and bloating, similar to those experienced by those with irritable bowel syndrome.
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