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Epidemiological and nutritional the population of patients with irritable bowel syndrome that are assisted at the HCFMUSP

Grant number: 10/03165-2
Support type:Scholarships in Brazil - Master
Effective date (Start): August 01, 2010
Effective date (End): April 30, 2012
Field of knowledge:Health Sciences - Nutrition
Principal Investigator:Aderson Omar Mourão Cintra Damião
Grantee:Daiana Amarante
Home Institution: Faculdade de Medicina (FM). Universidade de São Paulo (USP). São Paulo , SP, Brazil


The Irritable Bowel Syndrome (IBS) is a functional disease of the gastrointestinal tract that affects around 20 % of the adult population. The main symptoms involve bad functioning of the intestine associated with abdominal pains, diarrhea or constipation manifestations, with no presentation of structural and biochemical alterations of the intestine. Other frequent perturbations of the patients with IBS are related to the quality of life. The symptoms come from a combination of several physiopathology factors as: aggravated intestine motor response, change at the visceral hyper sensibility and alterations of the inflammatory function of the mucous and the enteric nervous system. In order to help with the diagnosis of the symptoms it is important to observe the frequency of the bowel movements, stool consistency and presence of mucus, excessive effort to evacuate, meteorism and a sense of incomplete bowel movement. The most proper way to treat the patient is through a whole and broad approach, but also individualized, trying to identify the factors that are initiating or aggravating the symptoms related to each patient. In all levels of service patients must be oriented regarding to a diet. It should be observed if some foods worsen the symptoms such as: lactose, sorbitol, fructose and fat that can aggravate the symptoms of the patients with the predominance of diarrhea. The increasing of ingestion of insoluble fibers may result in an increasing of the production of intestine gas and a consequent worsening of the bloating and abdominal pain picture. The exclusion diet is a good option for the improvement of the symptoms but it has to be individualized and followed by an experienced nutritionist. It demands patience and discipline on the patient side and strict monitoring of the food ingestion on the nutritionist side in order to have positive results. It is necessary prudence at the diet orientation as the hyper responsiveness of the colon to any kind of food is often observed in such population and that can be a factor related to postprandial symptoms.

Academic Publications
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