A ten-year study has concluded that drinking fruit and vegetable juice regularly may help to delay the onset of Alzheimer's disease.
The research studied Japanese people aged 65-years-old and above, who were living in America.
It was found that those who drank juice three or more times a week were 76 per cent less likely to develop the disease.
Those who drank juice once or twice weekly also showed a reduction in risk – by 16 per cent.
However, nutritionists have been keen to interpret the results as evidence for a healthy overall lifestyle rather than a recommendation to see juice, or even vitamin supplements, as an easy solution.
"People who consciously adopt a health diet are generally health conscious," said Dr Phillip Yap, a consultant in geriatric medicine at Singapore's Alexandra Hospital.
"They are likely to be more active physically, mentally and socially, and pay attention to maintaining their health."
He added that the best response to the study's findings was to adopt an overall healthy diet which is rich in fruit and vegetables.