Dark tea consumption is associated with a reduced risk of dysglycaemia and increased urinary glucose and sodium excretion in Chinese adults

Li, Tingting, Sang, Miaomiao, Wang, Jinbang, Sun, Zilin, Wang, Duolao ORCID: https://orcid.org/0000-0003-2788-2464, Xie, Cong, Huang, Weikun, Rayner, Christopher K., Horowitz, Michael, Qiu, Shanhu and Wu, Tongzhi (2024) 'Dark tea consumption is associated with a reduced risk of dysglycaemia and increased urinary glucose and sodium excretion in Chinese adults'. Diabetes, Obesity and Metabolism, Vol 26, Issue 10, pp. 4705-4712.

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Abstract

Aim: To examine the associations of tea consumption (both frequency and type) with (1) prediabetes and diabetes and (2) urinary glucose and sodium excretion in Chinese community‐dwelling adults. Materials and Methods: In 1923 participants (457 with diabetes, 720 with prediabetes, and 746 with normoglycaemia), the frequency (occasional, frequent, daily, or nil) and type (green, black, dark, or other) of tea consumption were assessed using a standardized questionnaire. Morning spot urinary glucose and urine glucose‐to‐creatinine ratios (UGCRs) were assessed as markers of urinary glucose excretion. Tanaka's equation was used to estimate 24‐h urinary sodium excretion. Logistic and multivariate linear regression analyses were performed.
Results: Compared with non‐tea drinkers, the corresponding multivariable‐adjusted odds ratios (ORs) for prediabetes and diabetes were 0.63 (95% confidence interval [CI] 0.48, 0.83) and 0.58 (95% CI 0.41, 0.82) in participants drinking tea daily. However, only drinking dark tea was associated with reduced ORs for prediabetes (0.49, 95% CI 0.36, 0.66) and diabetes (0.41, 95% CI 0.28, 0.62). Dark tea consumption was associated with increased morning spot urinary glucose (0.22 mmol/L, 95% CI 0.11, 0.34 mmol/L), UGCR (0.15 mmol/mmol, 95% CI 0.05, 0.25 mmol/L) and estimated 24‐h urinary sodium (7.78 mEq/day, 95% CI 2.27, 13.28 mEq/day).
Conclusions: Regular tea consumption, especially dark tea, is associated with a reduced risk of dysglycaemia and increased urinary glucose and sodium excretion in Chinese community‐dwelling adults.

Item Type:	Article
Subjects:	WK Endocrine System > WK 20 Research (General)
Faculty: Department:	Clinical Sciences & International Health > Clinical Sciences Department
Digital Object Identifer (DOI):	https://doi.org/10.1111/dom.15839
SWORD Depositor:	JISC Pubrouter
Depositing User:	JISC Pubrouter
Date Deposited:	29 Aug 2024 12:59
Last Modified:	11 Sep 2024 12:23
URI:	https://archive.lstmed.ac.uk/id/eprint/25087

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