Blueberries contain high levels of naturally occurring antioxidants that protect the body against cell damaging free radicals. Previous animal studies have shown that blueberry juice improves memory and even reduces high blood sugar in animals. Researchers are now reporting that blueberry juice improves memory in humans.
The study was conducted with elderly adults who were experiencing early memory decline. The results showed that drinking 2-2 1/2 cups of store bought blueberry juice a day improves memory. Participants who consumed blueberry juice not only showed improvement on memory tests, but their overall learning ability was enhanced as well.