Researchers looked at the effects of eating blueberries in overweight, pre-diabetic adults (ages 50-65) who were also experiencing mild memory decline associated with aging.
For 12 weeks, half the participants received powdered blueberry extract (equivalent to eating ½ cup of whole blueberries) or a placebo.
Participants were also given tests of their working memory, mental flexibility, and blood sugar/insulin levels.
Results: Participants receiving blueberry had a 70% improvement in daily memory problems, 12% improvement in word retrieval (determined through standardized testing) versus a decline in the placebo group, and 20% reduction in fasting insulin levels, versus an increase in the placebo group.
[Connect on Social Media and sign up for my E-Newsletter]
[Choose from topics below to personalize articles fed to your home page]