Scientists at the University of California have discovered that eating a handful of grapes twice a day could fight against dementia and protect the brain from cognitive decline.
After a six-month analysis on patients with dementia, they found that a substance specific to grapes was able to boost attention and memory performance.
Dr Daniel Silverman, lead author of the study, said: “The study examines the impact of grapes as a whole fruit versus isolated compounds and the results suggest that regular intake of grapes may provide a protective effect against early decline associated with Alzheimer’s disease.”
The scientists compared the effects of patients given whole grape powder – equivalent to two cups of grapes per day – or a placebo.
Tests were taken on the first day of the trial and again six months later. The results indicated that the brains of the group eating grapes were healthier relative to the group who did not.
The researchers concluded that grapes may promote brain health by reducing oxidative stress, promoting healthy blood flow, maintaining levels of a key brain chemical that promotes memory and exerting anti-inflammatory effects.
Dr Silverman added: “This pilot study contributes to the growing evidence that supports a beneficial role for grapes in neurologic and cardiovascular health, however more clinical studies with larger groups of subjects are needed to confirm the effects observed here.”