In the study, healthy people aged 65-77 who drank concentrated blueberry juice every day showed improvements in cognitive function, blood flow to the brain, activation of the brain while carrying out cognitive tests and improvements in working memory.
Dr Joanna Bowtell, head of Sport and Health Sciences at the University of Exeter, said: “Our cognitive function tends to decline as we get older. In this study we have shown that with just 12 weeks of consuming 30ml of a concentrated blueberry juice every day, brain blood flow, brain activation and some aspects of working memory were improved in this group of healthy older adults.”
Flavonoids and anthocyanins, which are abundant in blueberries, possess antioxidant and anti-inflammatory properties and are likely to be an important component in causing these effects. The study used BlueberryActive, a concentrated blueberry juice manufactured avoiding excessive heat and chemical preservatives, to optimise its nutrient content.
Blueberries are rich in flavonoids, which possess antioxidant and anti-inflammatory properties.
Drinking blueberry juice helps to improve brain power in older people, new research suggests.
The prevalence of dementia is increasing with expansion of the older adult population.
Preclinical studies have shown that blueberry supplementation can improve cognitive performance and neural function in aged animals and have identified associations between anthocyanins and such benefits.
The effect of flavonoid-rich food, such as blueberries, on cognitive function has been subject to a growing amount of research interest in recent years.