Fibre and bowel transit times.
1. Bowel transit time has been investigated in vegetarians and non-vegetarians and related to dietary fibre intake and the presence of diverticular disease. 2. Vegetarians who have less diverticular disease than non-vegetarians have more rapid transit times. 3. Subjects with total dietary fibre intake of more than 30 g/d all had transit times of less than 75 h whereas 38% of those eating less had transit times exceeding 75 h and varying up to 124 h. 4. Individuals with diverticular disease were found to have faster transit times than those without the disease. 5. The colon may respond to a fibre-depleted diet either by becoming hyperactive and prone to diverticular disease or by becoming hypoactive leading to constipation.
D002482:Cellulose / Q000008:administration & dosage*; D014676:Diet, Vegetarian; D004043:Dietary Fiber / Q000008:administration & dosage*; D004240:Diverticulum / Q000503:physiopathology*; D005260:Female; D005769:Gastrointestinal Motility; D006801:Humans; D008297:Male; D012737:Sex Factors; D013997:Time Factors
D004043:Dietary Fiber; D002482:Cellulose