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American Diabetes Association, Diabetes Care, 10(32), p. 1823-1825, 2009

DOI: 10.2337/dc09-0477

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Associations Between Dietary Fiber and Inflammation, Hepatic Function, and Risk of Type 2 Diabetes in Older Men

Journal article published in 2009 by S. Goya Wannamethee ORCID, Peter H. Whincup, Mary C. Thomas ORCID, Naveed Sattar
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

OBJECTIVE To examine the relationship between dietary fiber and the risk of type 2 diabetes in older men and the role of hepatic and inflammatory markers. RESEARCH DESIGN AND METHODS The study was performed prospectively and included 3,428 nondiabetic men (age 60–79 years) followed up for 7 years, during which there were 162 incident cases of type 2 diabetes. RESULTS Low total dietary fiber (lowest quartile ≤20 g/day) was associated with increased risk of diabetes after adjustment for total calorie intake and potential confounders (relative risk −1.47 [95% CI 1.03–2.11]). This increased risk was seen separately for both low cereal and low vegetable fiber intake. Dietary fiber was inversely associated with inflammatory markers (C-reactive protein, interleukin-6) and with tissue plasminogen activator and γ-glutamyl transferase. Adjustment for these markers attenuated the increased risk (1.28 [0.88–1.86]). CONCLUSIONS Dietary fiber is associated with reduced diabetes risk, which may be partly explained by inflammatory markers and hepatic fat deposition.