This placebo-controlled study of 21 elderly participants consuming Concord grape juice (provided by Welch Foods Inc.) daily for 16 weeks showed a benefit for neurocognitive function in older adults with mild memory decline. Increased activation of portions of the brain was also seen on functional magnetic resonance imaging experiments in the patients consuming the grape juice.
Journal of Agricultural and Food Chemistry
April 2, 2012
Concord Grape Juice Supplementation and Neurocognitive Function in Human Aging
Polyphenol compounds found in berry fruits, in particular flavonoids, have been associated with health benefits including improvement in cognition and neuronal function with aging. Concord grape juice contains polyphenols, including anthocyanins and flavanols, and previous research has shown improvement in a number of human health conditions with grape juice supplementation. In the current study, older adult subjects with mild cognitive impairment consumed Concord grape juice or placebo for 16 weeks and were administered assessments of memory function and brain activation pre- and postintervention. Participants who consumed grape juice showed reduced semantic interference on memory tasks. Relatively greater activation in anterior and posterior regions of the right hemisphere was also observed with functional magnetic resonance imaging in the grape juice treated subjects. These findings provide further evidence that Concord grape juice can enhance neurocognitive function in older adults with mild memory decline.