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BackgroundDietary 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.ObjectiveOur aim was to investigate the association of total dietary fiber, cereal fiber, and fruit and vegetable fiber with changes in weight and waist circumference.DesignWe 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.ResultsTotal 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.ConclusionOur finding may support a beneficial role of higher intake of dietary fiber, especially cereal fiber, in prevention of body-weight and waist circumference gain.

Original publication

DOI

10.3945/ajcn.2009.28191

Type

Journal article

Journal

The American journal of clinical nutrition

Publication Date

02/2010

Volume

91

Pages

329 - 336

Addresses

National Institute for Public Health and the Environment (RIVM), Bilthoven, Netherlands.

Keywords

Humans, Fruit, Vegetables, Obesity, Body Weight, Linear Models, Cohort Studies, Prospective Studies, Dietary Fiber, Adult, Aged, Middle Aged, Europe, Female, Male, Waist Circumference, Young Adult, Surveys and Questionnaires, Edible Grain