Whole Wheat Gets You Going Wheat bran is a popular form of laxative used to alleviate the symptoms of diverticular disease (pain, nausea, flatulence, distension, constipation, etc.) in 89 percent of patients enrolled in a study which examined the effects of fiber on bowel regularity. Diverticular disease, a condition often marked by inflammation and lower abdominal pains in which chronic constipation and excessive straining results in a sac or pouch in the wall of the colon, is typically treated with dietary roughage such as cereal fiber (i.e., wheat bran), fruit and vegetable fiber, and plenty of fluids. Whole Wheat Promotes Women's Health and Gastrointestinal Health Whole wheat has been shown to function as an anti-cancer agent. Wheat bran is thought to accelerate the metabolism of estrogen that is a known promoter of breast cancer. In one study, pre-menopausal women, ages twenty to fifty, who ate three to four high fiber muffins per day made with wheat bran, decreased their blood estrogen levels by 17 percent after two months. The women eating corn bran or oat bran did not show the same benefits.