Abstract
The aim of this pilot study was to determine the acceptability of fiber fortification and its effect on gastrointestinal function, abdominal discomfort, and energy and fiber intakes in children with a history of constipation. Participants (n = 13; 2-10 years) were randomly assigned to 3-week fiber and placebo periods in a crossover design. Participants consumed snack foods with or without added pea hull fiber (1.4-3.4 g of fiber per serving), as well as inulin (4.5 g of fiber per day) or maltodextrin control added to beverages. Stool frequency, stool consistency, abdominal pain, and compliance were documented. Fiber fortification improved daily stool frequency (n = 10; 0.54 ± 0.18 vs 0.67 ± 0.26; P = .002) during weeks 2 and 3. No differences between treatments were found for estimated intestinal transit time or abdominal pain. Inulin was consumed more consistently than snacks. Mean energy intake was reduced with fiber versus placebo (n = 12; 1441 ± 285 vs 1307 ± 296 kcal/day; P < .05), and fiber intakes increased significantly (n = 12; 11.1 ± 2.6 vs 17.1 ± 2.5 g/day; P < .001). Fiber fortification was well accepted and significantly increased fiber intakes. Fiber fortification may lower energy intakes in constipated children, although the effect on bowel habits in this convenience sample remains unclear.
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