A major study shows that eating an orange a day could reduce the risk of dementia.
Taking citrus fruits such as oranges, grapefruits, lemons or limes can cut the chances of developing incurable brain condition by almost a quarter..
The findings, by a team of scientists at Tohoku University in Japan, suggest that tangy fruits could be a powerful weapon against a disease that is emerging as a modern day epidemic.
Studies have suggested that citrus fruits can protect the brain against dementia. Citrus fruits contain nobiletin which reverse the impairment of memory.
The new research published in British Journal of Nutrition is the first major study to investigate the effect citrus fruit consumption might have on large numbers of those most at risk
Rates of dementia among those eating citrus fruits at least once a day are significantly lower with the scientists saying in a report that some biological studies have indicated citrus may have preventive effects against cognitive impairment.
