Griffenberg, L., Morris, M., Atkinson, N., & Levenback, C. (1997). The effect of dietary fiber on bowel function following radical hysterectomy: A randomized trial. Gynecologic Oncology, 66, 417–424.doi: 10.1006/gyno.1997.4797
To evaluate the effect of fiber on bowel function by comparing increased fiber intake with instructions versus regular diet.
Women were randomized into two groups: high fiber (treatment) or regular diet (control). Both groups were evaluated at one, four, and seven months after surgery.
The treatment group received dietary counseling with instructions to increase their dietary intake to 30 to 40 g per day. Patients received all-bran cereal (unmarked) containing 15 g of fiber per bowl. Patients also were encouraged to increase their intake of insoluble fibers (eg, whole-grain, whole-wheat, and pumpernickel breads; all-bran cereal; butter; lima, pinto, and white beans; split and black-eyed peas; blackberries; boysenberries; raspberries; dried figs and prunes; artichokes; asparagus; Brussels sprouts; corn; parsnips; spinach; winter squash; turnip greens).
The study reported on a sample of 35 women with cervical cancer who had a type II or III radical hysterectomy.
University of Texas MD Anderson Cencer Center
This was a randomized controlled trial (RCT).
Patients with higher fiber intake had significantly less cramping abdominal pain and reports of straining, bowel-movement retention, more bowel movements with gas, and made in less than three minutes.