Lupin kernel fibre foods improve bowel function and beneficially modify some putative faecal risk factors for colon cancer in men.

Johnson, Stuart K., Chua, Veronica, Hall, Ramon S. and Baxter, Amynta L. 2006, Lupin kernel fibre foods improve bowel function and beneficially modify some putative faecal risk factors for colon cancer in men., The British journal of nutrition, vol. 95, no. 2, pp. 372-378.

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Title Lupin kernel fibre foods improve bowel function and beneficially modify some putative faecal risk factors for colon cancer in men.
Author(s) Johnson, Stuart K.
Chua, Veronica
Hall, Ramon S.
Baxter, Amynta L.
Journal name The British journal of nutrition
Volume number 95
Issue number 2
Start page 372
End page 378
Publisher Cambridge University Press
Place of publication Cambridge, England
Publication date 2006-02
ISSN 0007-1145
1475-2662
0954-4224
Keyword(s) dietary fibre
legume
bowel function
faeces
SCFA
Summary Consumption of some dietary fibres may benefit bowel health; however, the effect of Australian sweet lupin (Lupinus angustifolius) kernel fibre (LKFibre) is unknown. The present study examined the effect of a high-fibre diet containing LKFibre on bowel function and faecal putative risk factors for colon cancer compared to a control diet without LKFibre. Thirty-eight free-living, healthy men consumed an LKFibre and a control diet for 1 month each in a single-blind, randomized, crossover study. Depending on subject energy intake, the LKFibre diet was designed to provide 17–30 g/d fibre (in experimental foods) above that of the control diet. Bowel function self-perception, frequency of defecation, transit time, faecal output, pH and moisture, faecal levels of SCFA and ammonia, and faecal bacterial [ß]-glucuronidase activity were assessed. In comparison to the control diet, the LKFibre diet increased frequency of defecation by 0·13 events/d (P = 0·047), increased faecal output by 21 % (P = 0·020) and increased faecal moisture content by 1·6 % units (P = 0·027), whilst decreasing transit time by 17 % (P = 0·012) and decreasing faecal pH by 0·26 units (P < 0·001). Faecal butyrate concentration was increased by 16 % (P = 0·006), butyrate output was increased by 40 % (P = 0·002) and [ß]-glucuronidase activity was lowered by 1·4 µmol/h per g wet faeces compared to the control diet (P < 0·001). Addition of LKFibre to the diet incorporated into food products improved some markers of healthy bowel function and colon cancer risk in men.
Language eng
Field of Research 111199 Nutrition and Dietetics not elsewhere classified
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2006, The Authors
Persistent URL http://hdl.handle.net/10536/DRO/DU:30003964

Document type: Journal Article
Collection: School of Exercise and Nutrition Sciences
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