Blueberries are rich in flavonoid antioxidants including anthocyanins and flavonols. Previous studies suggest that flavonoids cross the blood brain barrier and may promote brain health. Now research reports that blueberries can improve memory in seniors at risk for dementia and Alzheimer’s.
The study, published in the Journal of Agricultural and Food Chemistry, investigated the effects of blueberry supplementation on cognitive performance. Researchers at the University of Cincinnati Academic Health Center administered wild blueberry juice daily to 9 older adults (average age 76) with memory problems for 12 weeks. Blood tests, depression symptoms and cognitive function tests including memory, associate learning, and word list recall were obtained from the participants
The researchers found that the participants had improvements in learning and word list recall. Findings also revealed reduced blood glucose levels and depressive symptoms.
“The findings of this preliminary study suggest that moderate-term blueberry supplementation can confer neurocognitive benefit and establish a basis for more comprehensive human trials to study preventive potential and neuronal mechanisms,” the study authors conclude.
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Natural nutrients can provide nutritional support for age-related cognitive decline (ARCD), memory and brain health.
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