NPS has developed genetically modified purple-fleshed tomatoes, to contain the high levels of anti-oxidants and anthocyanins normally found in fruits such as blueberries and blackberries.
Many independent studies show that antioxidants and anthocyanins can reduce incidence of cancer, improve cardiovascular function and improve health and well-being. Lab studies also suggest these compounds could help alleviate irritable bowel syndrome.
Although purple-skinned tomato varieties exist, they do not accumulate useful levels of these compounds within the fruit.