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Nutrients 2017, 9(2), 161; doi:10.3390/nu9020161

Role of Fiber in Symptomatic Uncomplicated Diverticular Disease: A Systematic Review

Medical-Surgical Department of Clinical Sciences and Translational Medicine, University Sapienza, Via di Grottarossa 1035, 00189 Rome, Italy
Department of Internal Medicine and Medical Specialties, University Sapienza, Viale del Policlinico 155, 00161 Rome, Italy
Author to whom correspondence should be addressed.
Received: 23 December 2016 / Revised: 3 February 2017 / Accepted: 14 February 2017 / Published: 20 February 2017
(This article belongs to the Special Issue Dietary Fibers and Human Health)
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Symptomatic uncomplicated diverticular disease (SUDD) is a syndrome characterized by recurrent abdominal symptoms in patients with colonic diverticula. There is some evidence that a high-fiber diet or supplemental fibers may reduce symptoms in SUDD patients and a high-fiber diet is commonly suggested for these patients. This systematic review aims to update the evidence on the efficacy of fiber treatment in SUDD, in terms of a reduction in symptoms and the prevention of acute diverticulitis. According to PRISMA, we identified studies on SUDD patients treated with fibers (PubMed and Scopus). The quality of these studies was evaluated by the Jadad scale. The main outcome measures were a reduction of abdominal symptoms and the prevention of acute diverticulitis. Nineteen studies were included, nine with dietary fiber and 10 with supplemental fiber, with a high heterogeneity concerning the quantity and quality of fibers employed. Single studies suggest that fibers, both dietary and supplemental, could be beneficial in SUDD, even if the quality is very low, with just one study yielding an optimal score. The presence of substantial methodological limitations, the heterogeneity of the therapeutic regimens employed, and the lack of ad hoc designed studies, did not permit a summary of the outcome measure. Thus, the benefit of dietary or supplemental fiber in SUDD patients still needs to be established. View Full-Text
Keywords: diverticular disease; dietary fiber; supplemental fiber; symptomatic uncomplicated diverticular disease diverticular disease; dietary fiber; supplemental fiber; symptomatic uncomplicated diverticular disease

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Carabotti, M.; Annibale, B.; Severi, C.; Lahner, E. Role of Fiber in Symptomatic Uncomplicated Diverticular Disease: A Systematic Review. Nutrients 2017, 9, 161.

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