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Comparison of the effects of psyllium and wheat bran on gastrointestinal transit time and stool characteristics.
J Am Diet Assoc. 1988 Mar; 88(3):323-6.JA

Abstract

Gastrointestinal transit time, frequency of defecation, stool weight, and stool consistency were studied in 12 subjects who were each given fiber supplements containing wheat bran, psyllium gum, a combination of wheat bran and psyllium gum, or a low-fiber control for 2 weeks. Gastrointestinal transit time was measured using four different markers: plastic pellets, chromium mordanted bran, cobalt-ethylenediamine-tetraacetic acid, and terbium oxide. The wet weight and dry weight of stools were measured, and a questionnaire accessed subjects' perceptions of the consistency of their stools. Fiber supplementation decreased transit time and increased the daily number of defecations and the wet weight and dry weight of stools. Bran had a greater effect on transit time than psyllium. Psyllium had a greater effect on the amount of water found in the stools and the total stool weight. On the days that stools were passed, 50% of the daily stool ratings were scored as "hard" when subjects received the control supplement. Less than 10% of the ratings were scored as "hard" when subjects received the high-fiber supplements. The type of marker used did not significantly affect the transit time measured.

Authors+Show Affiliations

Department of Biometry, Medical University of South Carolina, Charleston.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

2831263

Citation

Stevens, J, et al. "Comparison of the Effects of Psyllium and Wheat Bran On Gastrointestinal Transit Time and Stool Characteristics." Journal of the American Dietetic Association, vol. 88, no. 3, 1988, pp. 323-6.
Stevens J, VanSoest PJ, Robertson JB, et al. Comparison of the effects of psyllium and wheat bran on gastrointestinal transit time and stool characteristics. J Am Diet Assoc. 1988;88(3):323-6.
Stevens, J., VanSoest, P. J., Robertson, J. B., & Levitsky, D. A. (1988). Comparison of the effects of psyllium and wheat bran on gastrointestinal transit time and stool characteristics. Journal of the American Dietetic Association, 88(3), 323-6.
Stevens J, et al. Comparison of the Effects of Psyllium and Wheat Bran On Gastrointestinal Transit Time and Stool Characteristics. J Am Diet Assoc. 1988;88(3):323-6. PubMed PMID: 2831263.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Comparison of the effects of psyllium and wheat bran on gastrointestinal transit time and stool characteristics. AU - Stevens,J, AU - VanSoest,P J, AU - Robertson,J B, AU - Levitsky,D A, PY - 1988/3/1/pubmed PY - 1988/3/1/medline PY - 1988/3/1/entrez SP - 323 EP - 6 JF - Journal of the American Dietetic Association JO - J Am Diet Assoc VL - 88 IS - 3 N2 - Gastrointestinal transit time, frequency of defecation, stool weight, and stool consistency were studied in 12 subjects who were each given fiber supplements containing wheat bran, psyllium gum, a combination of wheat bran and psyllium gum, or a low-fiber control for 2 weeks. Gastrointestinal transit time was measured using four different markers: plastic pellets, chromium mordanted bran, cobalt-ethylenediamine-tetraacetic acid, and terbium oxide. The wet weight and dry weight of stools were measured, and a questionnaire accessed subjects' perceptions of the consistency of their stools. Fiber supplementation decreased transit time and increased the daily number of defecations and the wet weight and dry weight of stools. Bran had a greater effect on transit time than psyllium. Psyllium had a greater effect on the amount of water found in the stools and the total stool weight. On the days that stools were passed, 50% of the daily stool ratings were scored as "hard" when subjects received the control supplement. Less than 10% of the ratings were scored as "hard" when subjects received the high-fiber supplements. The type of marker used did not significantly affect the transit time measured. SN - 0002-8223 UR - https://www.unboundmedicine.com/medline/citation/2831263/Comparison_of_the_effects_of_psyllium_and_wheat_bran_on_gastrointestinal_transit_time_and_stool_characteristics_ L2 - https://medlineplus.gov/dietaryfiber.html DB - PRIME DP - Unbound Medicine ER -