Document Detail

Effect of dietary fiber on total carbohydrate losses in ileostomy effluent.
MedLine Citation:
PMID:  1309407     Owner:  NLM     Status:  MEDLINE    
Studies were performed in three ileostomate subjects to determine the effect of intake of various carbohydrate-containing foods on the ileostomy losses of macronutrients. The percent recovery of available carbohydrate in ileostomy effluent varied between 1.09% and 22.63% for the various foods. Available carbohydrate recovery (%) was positively correlated with fiber (r = 0.91) and protein (r = 0.46) intake, but negatively with available carbohydrate intake (r = -0.66). Stepwise regression indicated that dietary fiber intake was the principal factor determining the amount of available carbohydrate in ileostomy effluent. Fiber intake was negatively correlated with water concentration of the effluent (r = -0.61). This study demonstrates that although fiber has been considered the chief substrate available for colonic fermentation, as the fiber intake increases, so the total fermentable load entering the colon is likely to increase due to losses of available carbohydrates in addition to fiber. Simple assessment of dietary fiber is likely to grossly underestimate the fermentable load on high-fiber, high-carbohydrate diets.
A H Steinhart; D J Jenkins; S Mitchell; D Cuff; E J Prokipchuk
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The American journal of gastroenterology     Volume:  87     ISSN:  0002-9270     ISO Abbreviation:  Am. J. Gastroenterol.     Publication Date:  1992 Jan 
Date Detail:
Created Date:  1992-01-24     Completed Date:  1992-01-24     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0421030     Medline TA:  Am J Gastroenterol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  48-54     Citation Subset:  IM    
Department of Medicine, Mount Sinai Hospital, University of Toronto, Canada.
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MeSH Terms
Analysis of Variance
Dietary Carbohydrates / metabolism*
Dietary Fiber / pharmacology*
Intestinal Absorption*
Intestine, Small / metabolism*
Middle Aged
Regression Analysis
Reg. No./Substance:
0/Dietary Carbohydrates

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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