TED Talk: starving blood vessels to cancer cells by eating certain things... all vegan certain things:

So why not just go vegan instead of what this guy is suggesting, which is to just add more of these foods to our diet. What effect would it have to only eat dark greens, nuts, seeds, fruits and berries? I'll tell you what effect- vegans have a much much lower risk of even developing the diseases he's talking about- cancer, diabetes, obesity, and heart disease.