Effect of Berry Polyphenols on Glucose Metabolism: A Systematic Review and Meta-Analysis of Randomized Controlled Trials.

Curr Dev Nutr · 2020 · PMC7326477 · PMID 32666033

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borderline significanceno p-value reported

Similarly, 3 previous meta-analyses reported that berry supplements, anthocyanins, or polyphenols (the latter 2 not limited to berry origin) reduced HbA1c by 0.20–0.53% ( 16 – 18 ), although with borderline significance in 1 of the meta-analyses ( 16 ).

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