Gastrointestinal effects of sugarbeet fiber and wheat bran in healthy men.
Gastrointestinal effects of feeding 20 g total dietary fiber as wheat bran (WB) and sugarbeet fiber (SBF) were compared in 17 healthy men in a randomized cross-over design. The fibers were milled to similar particle sizes and consumed as supplements to the subjects' self-selected diets (SS). Transit times were similar among the diets. Fecal wet and dry weights were greater on the fiber diets compared to the SS diet (P < 0.05); wet weights were similar with WB and SBF; dry weights were greater with WB than SBF (P < 0.001); and moisture content was lower with WB than SBF (P < 0.01). Fecal pH was lower with WB than SBF (P < 0.025). WB and SBF provided similar fecal bulking effect; however, the contribution of fecal dry matter and fecal water content to increased bulk differed between fibers.
Lampe
J W
JW
Department of Food Science and Nutrition, University of Minnesota, St. Paul 55108.
Wetsch
R F
RF
Thompson
W O
WO
Slavin
J L
JL
D000328:Adult; D000704:Analysis of Variance; D015986:Confounding Factors, Epidemiologic; D003672:Defecation; D004043:Dietary Fiber; D004734:Energy Metabolism; D005243:Feces / Q000737:chemistry*; D005772:Gastrointestinal Transit; D006801:Humans; D006863:Hydrogen-Ion Concentration; D008297:Male; D009753:Nutritive Value; D010316:Particle Size; D014675:Vegetables; D014867:Water / Q000032:analysis*
D004043:Dietary Fiber; D014867:Water