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WHAT CAUSES FOOD INTOLERANCE? BUGS IN THE SYSTEM

Our digestive tract is home to a great many bacteria and other microbes, which do not cause any disease, and are actually important for good health. They are known as the gut flora. Some doctors believe that the gut flora may become ‘disturbed’, causing the beneficial bacteria such as Lactobacillus to become less abundant, and other, more damaging microbes, to take their place. This might then lead on to food intolerance.-

The main evidence for this has been gathered by Dr John Hunter of Adden-brooke’s Hospital in Cambridge. Dr Hunter noticed that many of his patients with irritable bowel syndrome or IBS, dated their illness back to a bout of diarrhoea caused by an infection, or to a long course of antibiotics. Both these things are known to disturb the gut flora . Some women patients had first suffered from IBS after having a hysterectomy operation. This seemed puzzling, until Dr Hunter discovered that antibiotics were always given before such operations, to help prevent infections. An experiment followed in which some hysterectomy patients had the antibiotic treatment while others did not -11 per cent of those in the first group developed IBS but none of the second group did. In a further experiment, Dr Hunter looked at the bacteria found in the stools of IBS patients, and detected some differences from the bacteria of healthy people.

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