Fecal output, gastrointestinal transit time, frequency of evacuation and apparent excretion rate of dietary fiber in young men given diets containing different levels of dietary fiber.
Fecal output, gastrointestinal transit time, frequency of evacuation and apparent excretion rate of dietary fiber in young men given diets containing different levels of dietary fiber.
复制标题
摄入不同膳食纤维水平的年轻男性的粪便排出量、胃肠道通过时间、排便频率和膳食纤维表观排泄率。
DOI：
10.3177/jnsv.37.493
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发表时间：
1991
影响因子：
1.6
通讯作者：
S. Innami
中科院分区：
文献类型：
--
作者：
T. Saito;T. Hayakawa;K. Nakamura;T. Takita;K. Suzuki;S. Innami
选取5名健康年轻男性受试者，饲喂不同水平膳食纤维（DF）膳食一周，研究膳食纤维对粪便排出量、胃肠运输时间、排便频率和粪便中膳食纤维表观排泄率的影响。实验分两次进行，不同的实验对象和不同的DF水平。得到了以下结果：1)随着DF采食量的增加，粪便湿重和体积均显著增加。粪便比重与DF的摄入水平没有明显的关系。2)与无DF期相比，各DF期胃肠道转运时间有缩短的趋势。然而，它并没有随着DF摄入量的增加而缩短。(3)与非东风期相比，东风期的疏散频率更高。然而，摄入DF水平的差异并没有导致频率的变化。4)粪便中DF含量随DF摄入量的增加而显著增加，说明粪便量越大，粪便中DF含量越高。在两个实验阶段，粪便中DF的平均表观排泄率保持在60-75%之间。粪便中除DF以外的残留物随DF摄入量的增加而增加。5)本研究结果表明，每天摄入至少20克的DF会产生140-150克的粪便，正常成年人每天可以很容易地排出。
Five healthy young male subjects were given meals containing different levels of dietary fiber (DF) for one week each, and the effects on the fecal output, gastrointestinal transit time, frequency of evacuation, and apparent excretion rate of dietary fiber in feces were studied. The experiments were conducted twice by varying the subjects and the DF levels. The following results were obtained. 1) With an increase in the intake of DF, feces increased significantly in both wet weight and volume. The fecal specific gravity did not show any clear-cut relation with the intake level of DF. 2) The gastrointestinal transit time tended to shorten in each DF period compared to the DF-free period. However, it did not shorten with an increase in the intake level of DF. 3) Frequency of evacuation tended to be high in any of the DF periods compared to the DF-free period. However, the differences in the intake level of DF produced no changes in the frequency. 4) The DF content in feces increased significantly with an increase in the intake of DF, indicating that the larger the fecal output, the larger the fecal DF content. The apparent mean excretion rate of DF in feces remained in the range of 60-75% throughout the two experimental phases. Residues in feces other than DF increased with an increase in the DF intake. 5) The results obtained here indicate that the DF intake of at least 20 g per day produces 140-150 g of fecal output which can be easily excreted daily by a normal adult person.