In a recent study, researchers found that that green tea drinking was linked to increased risk of type 2 diabetes in Chinese adults, for whom tea is one of the most popular beverages.
The study included 119,373 participants from the Shanghai Women’s Health Study and Shanghai Men’s Health Study.
Participants did not have diabetes at the time they enrolled in the study.
The team found a positive and dose-response association between green tea consumption and risk of type 2 diabetes in both women and men.
This link did not vary by obesity or smoking status. Plasma level of caffeine metabolite was also associated with increased diabetes risk.
The researchers suggest a possible role of pesticide contamination in tea leaves and call for further studies to understand the mechanisms underlying the association.
The study was led by Xiao-Ou Shu, MD, PhD.
This study is published in the International Journal of Epidemiology.
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Source: International Journal of Epidemiology.