Nutrition Diva This is your brain on blueberries (Reissue)
Oct 22, 2025
Could daily blueberries boost your brain power? A recent study suggests yes, with potential cognitive improvements in older adults. However, it raises questions about the role of anthocyanins beyond just blueberries. The influence of funding from groups like the Highbush Blueberry Council on research integrity and consumer perceptions is explored. Finally, the discussion highlights the importance of consuming a variety of whole foods for optimal health, rather than relying solely on specific fruits or supplements.
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Blueberry Powder Improved Cognitive Tests
- A 12-week trial found daily blueberry powder (≈½ cup fresh) improved some cognitive test scores in 50–65-year-olds at dementia risk.
- Researchers concluded ongoing blueberry supplementation may help protect against cognitive decline when started early.
Funding Shapes Research Focus
- The study was funded and supplied by the U.S. Highbush Blueberry Council, though researchers reported no financial ties.
- Funding by commodity groups can shape study questions and public impressions of a food's unique benefits.
Anthocyanins Are Not Unique To Blueberries
- Anthocyanins, the compounds thought responsible, occur widely in berries, red cabbage, plums, grapes, eggplant, and red wine.
- The study didn't test whether blueberries are special versus other anthocyanin-rich foods, leaving that question unanswered.