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Diet and effects of diet management on symptoms and quality of life in patients with irritable bowel syndrome

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dc.contributor.author Østgaard, Hege
dc.date.accessioned 2011-11-09T13:32:55Z
dc.date.available 2011-11-09T13:32:55Z
dc.date.issued 2011-05-16
dc.date.submitted 2011-05-16 en_US
dc.identifier.uri http://hdl.handle.net/1956/5169
dc.description.abstract Background: Irritable bowel syndrome (IBS) is a gastrointestinal disorder manifested by abdominal discomfort or pain, bloating and abdominal distension, and changes in the defecation pattern between diarrhoea and constipation. A significant proportion of IBS patients attribute their symptoms to food items and food intolerance. More information is needed on the effect of diet management in the treatment of IBS and this thesis is a contribution with effort to advance our knowledge about this aspect of the disorder. Aim: To investigate the diet and quality of life in IBS patients in comparison with the background population. Furthermore, to study the effects of guidance on diet management on changes in food intake, quality of life and symptoms. Design and methods: The study group included 35 healthy controls, 36 unguided IBS patients and 43 IBS patients who received guidance in diet management two years earlier. The controls and patients were asked to complete a Food Frequency Questionnaire (FFQ), a Short -Form Nepean Dyspepsia Index (SF-NDI) questionnaire, an Irritable Bowel Syndrome- Quality Of Life questionnaire (IBS-QOL) and a Birmingham IBS symptom score questionnaire. Results: With or without dietary guidance, there were no statistical differences in the intake of calories, carbohydrates, proteins and fat between the IBS patients and the controls. IBS patients made a conscious choice to avoid some foods belonging to the FODMAP group (fermentable oligosaccharides, disaccharides, monosaccharides and polyols). However, they consumed other food items which are rich in FODMAPs and avoided food sources which are important for their health. Two years after receiving guidance on diet management, IBS patient had a different diet profile. They consumed less FODMAP-rich foods, consumed more foods with probiotic supplements and less frequently avoided food sources that were important for their health as compared with unguided IBS patients. In addition, quality of life was improved and IBS symptoms was reduced. Conclusion: Although at the first sight the diet of IBS patients does not seem to differ from that of the background population, detailed examination shows avoidance of certain food items. Guidance on the management of diet improves their choice of a healthier diet, improves quality of life and reduces symptoms. en
dc.format.extent 6185245 bytes en_US
dc.format.mimetype application/pdf en_US
dc.language.iso eng en
dc.publisher The University of Bergen en
dc.rights Copyright the author. All rights reserved en
dc.subject Diet en
dc.subject Quality of life en
dc.subject Irritable bowel syndrome en
dc.title Diet and effects of diet management on symptoms and quality of life in patients with irritable bowel syndrome en
dc.type Master thesis en
dc.type.degree Master i Klinisk ernæring en_US
dc.type.course NUCLI395 en_US
dc.subject.nsi VDP::Medical disciplines: 700::Health sciences: 800::Nutrition: 811 en
dc.rightsHolder The author en
dc.subject.archivecode Mastergrad en_US
dc.subject.nus 769917 en_US
dc.type.program MAMD-NUCLI en_US


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