Prospective Study of Zinc Intake and Risk of Type 2 Diabetes in Women

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Prospective Study of Zinc Intake and Risk of Type 2 Diabetes in Women

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Title: Prospective Study of Zinc Intake and Risk of Type 2 Diabetes in Women
Author: Sun, Qi; van Dam, Rob M.; Willett, Walter C.; Hu, Frank B.

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Citation: Sun, Qi, Rob M. van Dam, Walter C. Willett, and Frank B. Hu. 2009. Prospective Study of Zinc Intake and Risk of Type 2 Diabetes in Women. Diabetes Care 32(4): 629-634.
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Abstract: OBJECTIVE: The aim of this study is to investigate the intake of zinc in relation to risk of type 2 diabetes in U.S. women. RESEARCH DESIGN AND METHODS: Dietary intakes of zinc and other nutrients were assessed and updated using a validated food frequency questionnaire from 1980 to 2002 among 82,297 women who were aged 33–60 years at baseline in 1980 and followed up to 2004 in the Nurses' Health Study. RESULTS: During the 24 years of follow-up, 6,030 incident cases of type 2 diabetes were ascertained. After adjustment of lifestyle and dietary risk factors, the relative risks (RRs) (95% CI) of type 2 diabetes comparing the highest with the lowest quintiles were 0.90 (0.82–0.99) (Ptrend = 0.04) for total zinc intake and 0.92 (0.84–1.00) (Ptrend = 0.009) for dietary zinc intake from food sources, respectively. We further found an inverse association for dietary zinc to heme iron ratio. After multivariate adjustment of covariates, the RRs (95% CI) across quintiles of this ratio were 1.0 (reference), 0.93 (0.86–1.01), 0.86 (0.79–0.94), 0.82 (0.75–0.90), and 0.72 (0.66–0.80), respectively (Ptrend < 0.0001). CONCLUSIONS: Higher zinc intake may be associated with a slightly lower risk of type 2 diabetes in women. More studies are warranted to confirm this association and to explore potential mechanisms.
Published Version: doi:10.2337/dc08-1913
Other Sources: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2660459/pdf/
Terms of Use: This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:4891660

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