Consuming Concord grape juice daily was shown to help working mothers with certain aspects of memory and everyday tasks, according to research from the University of Leeds in the United Kingdom.
The paper was presented at the recent biennial International Conference on Polyphenols & Health.
In the study, 25 healthy, 40- to 50-year-old working women with preteen children participated in a 12-week randomized, double-blind, cross-over trial in which they drank 12 fl oz of either Concord grape juice or a grape-flavored placebo. Participants underwent a series of tests to measure their cognitive performance, including a driving simulation. The group who drank the juice showed statistically significant improvements in a memory measure (immediate spatial memory) and driving performance.
In addition, another paper presented at the conference showed that polyphenols present in Concord and Niagara grape juices may aid in slowing down the body’s absorption of naturally occurring sugars in juice, suggesting that drinking grape juice instead of a sugar-sweetened beverage may result in a modestly lower glycemic response.