One of the difficult areas in nutrition is
sometimes giving precise answers. We have, for a longtime, had strong epidemiology
data saying that consumption of diets that are rich in fruits and vegetables are associated
with reduced risks for a number of chronic diseases; vascular disease – the data are
very strong. And we have data that also says consumption
of high plant foods diets reduces the risk for certain cancers; either of their development
or their progression. One of the really hard questions right now
in nutrition, as a science, is, what are the factors that are responsible for this?
And this is an important question because, ultimately, maybe we can change agricultural
practices or food industry practices, and we’ll increase those.
But even before we have the firm identity of these, what we have is very good data saying
that if you want to reduce your risk for vascular disease, as a population, or if you want to
reduce your risk for cancer, increase that fruit and vegetable intake.