Blueberry anthocyanin supplementation shows favorable trends in glycemic control and alters the gut microbiota in type 2 diabetes patients: a pilot study

< 0.05) and elevated SCFA levels, though the latter change was not statistically significant. Correlation analysis further revealed associations between specific bacterial genera, glucose metabolism indicators, and SCFAs. These findings suggest that BAE may modulate the gut microbiota and improve glucose metabolism in T2DM, supporting its potential as a dietary adjunct for glycemic management, although larger trials are needed for confirmation.