ORGANIC varieties of tomato ketchup contain three times as much of a cancer-fighting chemical called lycopene as non-organic brands.
In the US, tomato ketchup comes in purple and green varieties as well as the traditional red. Betty Ishida and Mary Chapman at the Agricultural Research Service in Albany, California, wondered if the colouring might be indicative of low levels of lycopene, the pigment that makes tomatoes red. The chemical has been shown to help protect against breast, pancreatic, prostate and intestinal cancer, especially when eaten with fatty foods. There is also evidence that lycopene can reduce the risk of heart…
