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The effects of intact cereal dietary fiber on measures related to regularity (822.7)
Author(s) -
DeVries Jan,
Miller Paige,
Verbeke Kristin
Publication year - 2014
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fasebj.28.1_supplement.822.7
Subject(s) - dietary fiber , bran , sorghum , fiber , transit time , medicine , food science , zoology , agronomy , biology , chemistry , ecology , raw material , organic chemistry , transport engineering , engineering
Intact wheat dietary fiber has consistently been shown to increase stool weight, an accepted measure of laxation. However, less is known about the effects of wheat fiber on other measures of regularity, and the effectiveness of other intact cereal dietary fibers (ICDF) on regularity. The study objective was to systematically review, evaluate, and summarize the outcomes of intervention studies investigating the effectiveness of ICDF on regularity parameters. A comprehensive literature search was conducted using PUBMED and EMBASE; supplementary literature searches included examining the reference lists of all relevant studies and pertinent review articles. Included studies were published from 1919 to 2012. Data on stool wet weight, stool dry weight, % water in stools, frequency, stool consistency, and total transit time were extracted. There are limited data available from the ICDF from other cereals, such as oat, barley, rice, corn, and sorghum, and are not sufficient to allow statistical comparison with wheat bran fiber for their effects on stool regularity parameters. Weighted regression analysis on the observations of intact wheat dietary fiber demonstrates a significant stool bulking effect. When initial transit time is more than 48 hrs, intervention with intact wheat dietary fiber can significantly reduce transit time.