Pu-erh tea has considerable inhibitory effects on alpha-amylase and alpha-glucosidase, indicating potential anti-hyperglycemic benefits.
Systematic Review Blood Sugar Type 2 Diabetes
The study employed a systematic review method to investigate the inhibitory effects of Pu-erh tea on alpha-amylase and alpha-glucosidase. English and Chinese databases, specifically PubMed, EBSCO, SCOPUS, Cochrane Library, Web of Science, Airti Library, CNKI Library, and Google Scholar, were thoroughly searched up to March 22, 2018 for eligible studies. Search terms included Pu-erh, Pu'er, alpha-amylase, and alpha-glucosidase, aiming to collect an integrative body of literature demonstrating the link between Pu-erh tea and its presumed anti-hyperglycemic effects.
Concerning the discussion of the results, the systematic review incorporated six studies that had examined inhibitory effects on alpha-glucosidase and seven that had investigated alpha-amylase. The analysis revealed that Pu-erh tea does indeed demonstrate inhibitory effects on both alpha-amylase and alpha-glucosidase. However, high heterogeneity was identified across the various studies, which could be attributed to the complex changes in chemical composition resulting from varying extents of fermentation. The significant findings suggest the tea's potential as a natural remedy for hyperglycemia.
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