JOURNAL ARTICLE

Dietary fiber and subsequent changes in body weight and waist circumference in European men and women

Huaidong Du, Daphne L van der A, Hendriek C Boshuizen, Nita G Forouhi, Nicolas J Wareham, Jytte Halkjaer, Anne Tjønneland, Kim Overvad, Marianne Uhre Jakobsen, Heiner Boeing, Brian Buijsse, Giovanna Masala, Dominique Palli, Thorkild I A Sørensen, Wim H M Saris, Edith J M Feskens
American Journal of Clinical Nutrition 2010, 91 (2): 329-36
20016015

BACKGROUND: Dietary fiber may play a role in obesity prevention. Until now, the role that fiber from different sources plays in weight change had rarely been studied.

OBJECTIVE: Our aim was to investigate the association of total dietary fiber, cereal fiber, and fruit and vegetable fiber with changes in weight and waist circumference.

DESIGN: We conducted a prospective cohort study with 89,432 European participants, aged 20-78 y, who were free of cancer, cardiovascular disease, and diabetes at baseline and who were followed for an average of 6.5 y. Dietary information was collected by using validated country-specific food-frequency questionnaires. Multiple linear regression analysis was performed in each center studied, and estimates were combined by using random-effects meta-analyses. Adjustments were made for follow-up duration, other dietary variables, and baseline anthropometric, demographic, and lifestyle factors.

RESULTS: Total fiber was inversely associated with subsequent weight and waist circumference change. For a 10-g/d higher total fiber intake, the pooled estimate was -39 g/y (95% CI: -71, -7 g/y) for weight change and -0.08 cm/y (95% CI: -0.11, -0.05 cm/y) for waist circumference change. A 10-g/d higher fiber intake from cereals was associated with -77 g/y (95% CI: -127, -26 g/y) weight change and -0.10 cm/y (95% CI: -0.18, -0.02 cm/y) waist circumference change. Fruit and vegetable fiber was not associated with weight change but had a similar association with waist circumference change when compared with intake of total dietary fiber and cereal fiber.

CONCLUSION: Our finding may support a beneficial role of higher intake of dietary fiber, especially cereal fiber, in prevention of body-weight and waist circumference gain.

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