Scientists have found that chemicals in the fruit can reverse age-releated decline in memory.
The team at Reading University found the equivalent of a punnet of blueberries a day, between 120g and 150g, significantly improved the memory of rats. The effect began after just three weeks of starting the blueberry diet an the improvement meant the older rats on the diet performed as well as young rats. They were put through a maze with food at the end and the accuracy and time taken were measured.
Blueberries are a major source of flavonoids, which are historically believed to act as antioxidants in our bodies by counteracting the damage done to DNA.