Kasper H, Eilles C, Reiners C, Schrezenmeir J
Hepatogastroenterology. 1985 Apr;32(2):69-71.
Little is known about the effect of dietary fiber on gastric emptying. At present, we do not know whether any therapeutic effects result from delayed gastric transit time. Functional scintigraphy was used to determine the effect of wheat bran, guar and pectin on the transit time of 200 ml fruit juice and 200 or 400 ml of a liquid test meal in normal healthy subjects. The transit time of fruit juice was significantly delayed by the addition of 4 g guar (viscosity 7079 mPA X s). Neither wheat bran, pectin nor guar resulted in a delay of the test meal transit time despite maximal increases in viscosity of up to 21,500 mPa X s. We therefore conclude that dietary fiber does not significantly delay the gastric transit time of test meals regardless of the increase in viscosity. The reduction in postprandial glucose levels after ingestion of guar or pectin is, therefore, probably not due to delayed gastric emptying.
关于膳食纤维对胃排空的影响，目前所知甚少。目前，我们尚不清楚胃排空时间延迟是否会产生任何治疗效果。功能性闪烁扫描用于确定在正常健康受试者中，麦麸、瓜尔豆胶和果胶对200毫升果汁以及200或400毫升液体试验餐的排空时间的影响。添加4克瓜尔豆胶（粘度7079毫帕·秒）可显著延迟果汁的排空时间。尽管粘度最大增加至21,500毫帕·秒，但麦麸、果胶和瓜尔豆胶均未导致试验餐排空时间延迟。因此，我们得出结论，无论粘度如何增加，膳食纤维均不会显著延迟试验餐的胃排空时间。因此，摄入瓜尔豆胶或果胶后餐后血糖水平的降低可能并非由于胃排空延迟所致。
