Pu-erh tea has a significant anti-hyperglycaemic effect, with its efficacy increasing over time and with higher dosages.
The research team systematically searched five English databases and three Chinese ones up to July 31, 2018 for studies related to the term 'Pu-erh' and the concepts of 'blood sugar', 'blood glucose', and 'hyperglycaemia'. The team used the software RevMan 5 and Stata to carry out a meta-analysis, which ultimately included two studies on mice, with sixteen records total.
The results from the meta-analysis reveal that Pu-erh tea has a strong anti-hyperglycaemic effect on mice. More noteworthy were the observations that, over longer periods of intervention, the tea can reduce fasting blood glucose levels. Additionally, a higher dose of Pu-erh tea was found to lower fasting blood glucose significantly more, suggesting dosage is crucial for achieving the best outcome.
