Li Tingting, Rayner Christopher K, Horowitz Michael, Jones Karen, Xie Cong, Huang Weikun, Sun Zilin, Qiu Shanhu, Wu Tongzhi
Department of Endocrinology, Zhongda Hospital, Institute of Diabetes, School of Medicine, Southeast University, Nanjing 210009, China.
Centre of Research Excellence in Translating Nutritional Science to Good Health, Adelaide Medical School, The University of Adelaide, Adelaide, SA 5000, Australia.
Nutrients. 2025 Jul 19;17(14):2366. doi: 10.3390/nu17142366.
Lifestyle modifications are pivotal to preventing the progression of prediabetes and associated cardiometabolic diseases. Recent evidence from cross-sectional analysis of community-dwelling Chinese adults suggests that regular consumption of tea, particularly dark tea, is associated with a reduced risk of both prediabetes and type 2 diabetes. However, the effects of tea consumption on prediabetes progression and regression remain uncertain. This study investigated the associations of tea consumption with prediabetes progression and regression in Chinese adults with prediabetes. A cohort of 2662 Chinese adults with prediabetes was followed over ~3 years. Baseline tea consumption, including the type (green, black, dark, or other) and frequency (daily, sometimes, or nil), was assessed using standardized questionnaires. Prediabetes was defined according to the American Diabetes Association criteria. Multinomial logistic and linear regression analyses with multivariable adjustment was performed to evaluate associations. Compared to non-tea drinkers, dark tea consumers were less likely to progress to type 2 diabetes (odds ratio [OR]: 0.28, 95% confidence interval [CI]: 0.11, 0.72, = 0.01), whereas green tea consumption was associated with a reduced probability of regressing to normoglycemia (OR: 0.73, 95 CI%: 0.59, 0.90, = 0.01). These findings support further exploration of dark tea consumption as a strategy to reduce prediabetes progression, and suggest that effects of green tea consumption should also be examined more closely in this population.
生活方式的改变对于预防糖尿病前期及相关心脏代谢疾病的进展至关重要。对居住在社区的中国成年人进行横断面分析的最新证据表明，经常饮茶，尤其是黑茶，与降低糖尿病前期和2型糖尿病的风险有关。然而，饮茶对糖尿病前期进展和逆转的影响仍不确定。本研究调查了中国糖尿病前期成年人饮茶与糖尿病前期进展和逆转之间的关联。对2662名患有糖尿病前期的中国成年人进行了约3年的随访。使用标准化问卷评估基线饮茶情况，包括茶的类型（绿茶、红茶、黑茶或其他）和频率（每天、有时或从不）。糖尿病前期根据美国糖尿病协会标准定义。进行多变量调整的多项逻辑回归和线性回归分析以评估关联。与不饮茶者相比，饮用黑茶的人进展为2型糖尿病的可能性较小（优势比[OR]：0.28，95%置信区间[CI]：0.11，0.72， = 0.01），而饮用绿茶与恢复正常血糖的概率降低有关（OR：0.73，95%CI：0.59，0.90， = 0.01）。这些发现支持进一步探索饮用黑茶作为降低糖尿病前期进展的策略，并表明在该人群中也应更密切地研究饮用绿茶的影响。
