Document Detail


Malabsorption of carbohydrate foods by urban blacks.
MedLine Citation:
PMID:  1745937     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Prevalences of non-infective bowel diseases are very low in South African urban blacks compared with the white population. In seeking elucidation, using breath hydrogen measurements in series of black and white subjects, small-bowel transit time was determined, and the malabsorption of maize, wheat, and rice investigated. Median transit times in both ethnic groups were similar. Rice was fully, but wheat incompletely absorbed by both groups. Maize, the staple food of blacks, was incompletely absorbed by them, although completely absorbed by the white subjects. Carbohydrate consumption is high in the black population (60-65% of total energy intake). It is probable that in blacks, despite their now eating a low-fibre diet, an expected increase in large-bowel diseases has been inhibited in part by the protective mechanism of fermentation of malabsorbed maize and wheat.
Authors:
I Segal; A R Walker; I Naik; L Riedel; B Daya; M de Beer
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  South African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde     Volume:  80     ISSN:  0256-9574     ISO Abbreviation:  S. Afr. Med. J.     Publication Date:  1991 Dec 
Date Detail:
Created Date:  1992-01-14     Completed Date:  1992-01-14     Revised Date:  2014-09-12    
Medline Journal Info:
Nlm Unique ID:  0404520     Medline TA:  S Afr Med J     Country:  SOUTH AFRICA    
Other Details:
Languages:  eng     Pagination:  543-5     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Adult
African Continental Ancestry Group*
Breath Tests
Dietary Carbohydrates / metabolism*
Female
Humans
Hydrogen / analysis
Intestinal Absorption
Lactulose / metabolism
Male
Oryza sativa / metabolism*
South Africa
Triticum / metabolism*
Urban Population
Zea mays / metabolism*
Chemical
Reg. No./Substance:
0/Dietary Carbohydrates; 4618-18-2/Lactulose; 7YNJ3PO35Z/Hydrogen

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


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