Drinking Coffee May Prevent Type 2 Diabetes in Certain Women

According to a study published in The American Journal of Clinical Nutrition, women with a history of gestational diabetes mellitus (GDM) who regularly consume coffee have a reduced risk of developing type 2 diabetes (T2D).

In this study, researchers tracked 4,522 women with a history of GDM from 1991 to 2017 and updated demographic, lifestyle, and disease outcomes every two to four years. Using validated FFQs, study participants reported their caffeine and decaffeinated coffee consumption. In 2012-2014, a subset of over 500 participants without diabetes provided fasting blood samples for analysis of the following glucose metabolism biomarkers. Using multivariable Cox regression models, the risk of T2D was analyzed.

According to the findings, 979 participants were diagnosed with T2D. Researchers discovered that consuming caffeinated coffee was associated with a reduced risk of type 2 diabetes. Moreover, the analysis showed that replacing 1 serving/d of sugar-sweetened beverage and artificially sweetened beverage with 1 cup/d of caffeinated coffee was correlated with a 17% (risk ratio [RR] = 0.83, 95% CI: 0.75, 0.93) and 9% (RR = 0.91, 95% CI: 0.84, 0.99) lower risk of T2D, respectively. In addition, the study revealed that a higher consumption of caffeinated coffee was associated with lower fasting insulin and C-peptide concentrations (all P-trend 0.05).

“Among predominantly Caucasian females with a history of GDM, a higher intake of caffeinated coffee was associated with a lower risk of T2D and a more favorable metabolic profile,” concluded the researchers.

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