Can anthocyanins improve memory? Original paper

In this meta-analysis of 14 randomized controlled trials with 733 participants (ages 40–92), supplementation with anthocyanins did not improve memory.

This Study Summary was published on April 22, 2025.

The study

Participants with and without cognitive impairment were included. They took anthocyanins (33–425 mg/day) from sources such as blueberries, cherries, grape juice, or supplements, typically for durations of 8 to 24 weeks. The control groups received a placebo.

The meta-analysis found that anthocyanins had no effects on working memory, verbal memory, immediate memory, or delayed memory.

The included studies showed mostly a low to moderate risk of bias, and there was substantial heterogeneity among studies.

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The results

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    This Study Summary was published on April 22, 2025.