The term phytonutrients refers to a group of sybstances produced by plants, included fruits & vegetables. Phytonutrients have been extensively studied for their beenfits in human health, as for example: longevity, cardiovasular health, protection from chronic disease, eye health, brain function & immune support. Two of the largest categories of phytonutrients are polyphenols & carotenoids, however scientists believe that up to now only a small number of phytonutrients have been discovered & studied.