A cancer charity has hailed a study which suggests a commercially-available blueberry and grape fruit punch could combat the disease.
Blueberry Punch, which is made in Australia, contains blueberry, red grape, elderberry and raspberry fruit concentrates, as well as extracts from a range of plants including green tea and olive leaves.
Dr Jas Singh, who conducted the research at the University of Sydney in Australia, found the drink can reduce prostate cancer tumours by 25%. He is now planning further tests to see if the positive results continue.
Debbie Clayton, information manager at The Prostate Cancer Charity, said: "The researchers are planning a small study of 150 men with prostate cancer who will drink three glasses of the juice every day.
"This is a large quantity for men to consume on a regular basis and further studies will be needed to establish the most effective 'dose'.
"These studies will need to involve much larger numbers of men and it may be several years before we are able to offer men clear guidance on how the drink may help them. In the meantime, we would recommend that men include a variety of fresh fruit and vegetables in their diet, ensuring they get a 'rainbow' of colours."