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.

The objective of this work was to evaluate the effect of pelletized or extruded diets, with different levels of carbohydrate and lipid, on the gastrointestinal transit time (GITT) and its modulation in pacu (Piaractus mesopotamicus). One hundred and eighty pacu juveniles were fed with eight isonitrogenous diets containing two carbohydrate levels (40 and 50%) and two lipid levels (4 and 8%). Four diets were pelletized and four were extruded. Carbohydrate and lipid experimental levels caused no changes to the bolus transit time. However, the bolus permanence time was related to diet processing. Fish fed pelletized diets exhibited the highest gastrointestinal transit time. Regression analysis of bolus behavior for pelletized and extruded diets with 4% lipid depicted different fits. GITT regression analysis of fish fed 8% lipid was fitted to a cubic equation and displayed adjustments of food permanence, with enhanced utilization of the diets, either with extruded or pelletized diets. GITT of fish fed extruded diets with 4% lipid was adjusted to a linear equation. The GITT of pacu depends on the diet processing and is affected by dietary levels of lipid and carbohydrate.

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Beneficial Effect of Dietary Fiber on the Upper Gastrointestinal Transit Time in Rats Suffering from a Toxic Dose of Amaranth

Bioscience Biotechnology and Biochemistry ◽

10.1271/bbb.56.551 ◽

1992 ◽

Vol 56 (4) ◽

pp. 551-555 ◽

Cited By ~ 1

Author(s):

Hidetoshi Takeda ◽

Akira Nakajima ◽

Shuhachi Kiriyama

Keyword(s):

Beneficial Effect ◽

Dietary Fiber ◽

Transit Time ◽

Gastrointestinal Transit ◽

Toxic Dose ◽

Gastrointestinal Transit Time ◽

Upper Gastrointestinal

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An Overview of the Effects of Dietary Fiber on Gastrointestinal Transit

PEDIATRICS ◽

10.1542/peds.96.5.997 ◽

1995 ◽

Vol 96 (5) ◽

pp. 997-999 ◽

Cited By ~ 1

Author(s):

Craig Hillemeier

Keyword(s):

Dietary Fiber ◽

Transit Time ◽

Gastrointestinal Motility ◽

Gastrointestinal Transit ◽

Colonic Transit ◽

Dramatic Effect ◽

Gastrointestinal Transit Time ◽

General Fiber ◽

Bowel Movements ◽

Considerable Benefit

This article is a review of the effects that ingested dietary fiber has on gastrointestinal transit time. The various phases of gastrointestinal motility are considered, and the effect of fiber on these various components is explored. Fiber affects each phase of gastrointestinal motility differently; however, the most dramatic effect on decreased transit time and frequency of bowel movements results from the variations it causes in colonic transit time. The mechanisms of defecation in children and the ways in which fiber affects the frequency of bowel movements are emphasized. All types of fiber do not affect gastrointestinal transit in a similar manner, and different preparations of the same fiber either may delay or may increase the time of intestinal transit. In general, fiber is found to increase the frequency of bowel movements and may prove to be of considerable benefit in treating constipation, a common childhood disorder.

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