Like many studies over the last few years that have looked at blueberries, blackberries, curcumin (tumeric spice), and others, there is little question that in high doses of phytochemicals in these thing have positive impact in a petri dish or in small mammals. Please note that while a diet rich in these things MAY be somewhat chemo-protective, in most of these studies it is micro nutrients in high extracted doses that has the big effect reported. This certainly gives us avenues of exploration as we look to a future of less toxic treatments. Just remember no matter which of these things you read about, that you could not consume enough of any one of these foods everyday to have the same impact. But it does no harm to eat a balanced diet containing more of these things than the junk that makes up the normal American diet. Besides any minimal anti-cancer benefits you might gain, you will have positive collateral benefits in many other part of your body and life.