The humble tomato has been at the centre of a whirlwind of scientific activity for several years, mainly because of its high lycopene content. Lycopene, a carotenoid compound which is found in relatively few foods, gives tomatoes their deep red colour and is a potent antioxidant which can protect cells and DNA from free-radical damage. Significantly, cooked tomato products are even higher in lycopene than the raw fruit – 100g of canned tomato paste, for example, contains an astonishing 28,764mcg, which is more than any other food tested so far.