Increment of Fecal Weight and Improvement of BowelFunction
by Dietary Fiber Rich Cereal-based Breakfast in Normal Subjects Tsuneyuki OKU1* and SadakoNAKAMURA1,2 1Department of Nutrition & Health Sciences, Facultyof Nursing and Nutrition,
Siebold University of Nagasaki, Nagayo-cho, Nagasaki 851-2195,Japan.
2Department of Health and Physical Education, TokyoGakugei
University Graduate School of Education The effects of dietary fiber rich cereal-basedbreakfast on the increment of fecal wet weight, defecation rate andcondition of evacuation were investigated in normal subjects (n=36)and the data of 29 subjects selected from 36 subjects were used forthe evaluation. The study design was crossover experiment forcontinuous 7 weeks, and the subjects consumed 2 different testcereal flakes (cereal A, B) in random order in their breakfast.Total dietary fiber contents of the test cereals for three trialswere 6.4g for cereal A 40g, 9.6g for cereal A 60g and 5.0g forcereal B 60g, respectively. The cookie as the control does notcontain dietary fiber. The results obtained were as follows ; 1)The fecal wet weight significantly increased with cereal A 40g,A60g and also cereal B60g and the increment was dependent on thetotal dietary fiber contents of the test cereals, comparing to thecontrol . 2) The defecation rate of days and times per week weresignificantly increased with cereal A40g, A60g and cereal B60g,comparing of the control, respectively. 3) The condition ofevacuation such as fecal form, color and smell were significantlyimproved in cereal A 40g and cereal A60g ingestions. 4) The wetweight of feces which makes feel defecation every day wasapproximately 150g. We concluded that dietary fiber richcereal-based breakfast has a fecal bulking effect and theimprovement of condition of the evacuation in the additionalingestion of 5.0-6.4g of dietary fiber in a day.
Key words: dietary fiber, cereal, fecal weight, defecation, largebowel function |
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