Earlier studies found blueberries improved memory, but the large dose- amount of fruit in them was impractical. In this study, 37 men and women aged 60 to 75 took 24 grams of freeze-dried blueberry—equal to one cup of fresh blueberries—per day, or a placebo. After 90 days, while the placebo group had not changed, those taking blueberry had far fewer errors in a verbal learning test, and increased mental flexibility in a test of executive function—the processes that guide thought and behavior—compared to the start of the study.

Reference: European Journal of Nutrition; 2018, Vol. 57, No. 3, 1169-80
Natural Insights for Well Being July 2018
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