. 2014 Mar;10(3):164–174.

Table 1.

Dietary Surveys of Patients with Irritable Bowel Syndrome

Study	Dietary Survey	Results
Simrén et al⁴³	Patients with IBS (n=330) graded their perceived symptoms against a list of 35 foods.	63% attribute their GI symptoms to foods, especially carbohydrates and fats.
Monsbakken et al⁴¹	Patients with IBS (n=84) completed a survey based on symptoms related to food, foods limited or avoided, and adequacy of diet.	62% limited or excluded food from their diet. 12% had an inadequate diet.
Ostgaard et al⁴⁷	Patients with IBS (n=36) and patients with IBS given dietary guidance (n=43) completed FFQs detailing intakes of macro- and micronutrients and providing information on meal patterns.	Patients had significantly lower intakes of certain food groups due to self-restriction compared with patients with IBS given dietary advice by a healthcare professional.
Williams et al⁴⁴	Patients with IBS (n=104) completed an FFQ, and their dietary intake was compared with UK DRVs.	Patients have an adequate intake of nutrients when compared with DRVs.
Hayes et al⁴⁶	Patients with IBS (n=135) completed a dietary survey on their perceptions of the role of diet in their symptoms and whether they restrict their diet based on this.	90% attributed their symptoms to certain foods, with 9.6% restricting milk products, 7.4% restricting fruit, and 5.2% restricting vegetables. Only a small percentage of patients sought professional dietary guidance.

DRVs, dietary reference values; FFQs, food frequency questionnaires; GI, gastrointestinal; IBS, irritable bowel syndrome.