Scientists have developed purple tomatoes which they hope may be able to keep cancer at bay.
The fruit are rich in an antioxidant pigment called anthocyanin which is thought to have anti-cancer properties.
A team from the John Innes Centre, Norwich, created the tomatoes by incorporating genes from the snapdragon flower, which is high in anthocyanin.
The study, published in Nature Biotechnology, found mice who ate the tomatoes lived longer.
