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IRRITABLE BOWEL SYNDROME PATIENTS DIETARY SURVEY AND TOTAL DIETARY FIBER INTAKE

Dr.Mehboob yameen, Dr. Ali Nasir, Dr. Muhammad Hassan

Background: Based on their chemical extraction, dietary fibers are classified into crude fibers and total dietary fibers (TDF). TDF shows an estimate that is best in fiber diet content. Whereas data on intake of crude fibers are available, there is a lack of data on intake of TDF in patients with irritable bowel syndrome (IBS). Aim: In our study we will be finding the TDF and its source in diet with IBS and healthy controls (HC). Methods: 81 patients with IBS were categorized into constipation-predominant (IBS-C, n=48), diarrhea-predominant (IBS-D, n=16) and mixed type (IBS-M, n=17). A pretested, open-ended, semi-quantitative food frequency questionnaire was used to collect dietary information on food groups and TDF. We studied healthy individuals (n=89) who were recruited as HC. The mean age of patients (SD) and HC was 36.5 (11.4) years respectively (59 men), and 36 (12) years (62 men). Results: 39 (48%) patients took medicinal fiber supplements, of which twenty took supplements every day. The mean daily TDF intake was 51.7 (23.1) g vs. 52.3 (21.6) g respectively for patients and HC, (p=0.8). There was similar intake of TDF in patients who had less (n=41) or more (n=40) preference for fiber-rich foods (55 [23] g vs. 47 [22] g, p=0.16). The mean cereal intake per day in patients was significantly lower than that in HC (322 g vs. 404 g, p=0.001). However, consumption of fruits (150 g vs. 80 g, p=0.001) and vegetables (348 g vs. 219 g, p=0.006) was more in patients as compared to HC. There was a positive correlation between TDF with cereals (p=0.001), pulses (p=0.001), vegetables and fruits (p=0.033) in patients with IBS but only with cereals (p=0.001) in HC. Conclusion: The intake of TDF in patients with IBS and HC is much higher than the dietary recommendation for healthy individuals. Patients who had IBS took more fruits and vegetables rather as compared with HC who had more cereals.

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