Chapter 13 - Irritable bowel syndrome

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Abstract

There has been a surge in the interest of the role of gluten outside the diagnosis of celiac disease, with a particular interest in the role of a gluten free diet (GFD) in irritable bowel syndrome (IBS). IBS is common, with diet being known to be a trigger for symptoms in the majority of patients. There is evidence for the use of a GFD to manage patients with IBS. In addition to the GFD, there are other dietary therapies available to manage IBS, including the low FODMAP diet (LFD) and traditional dietary advice. There have been several trials assessing the LFD to date, with evidence for its use in patients with IBS. Areas of uncertainty remain with the LFD and GFD, including nutritional adequacy, effects on the gut microbiota and long-term outcomes. Choice of dietary therapy should be determined by patient choice, in conjunction with dietetic input. The purpose of this chapter is to give an overview of the role of a GFD in IBS, as well as other dietary therapies.

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