Go to Waisays.com. There it is, all documented by studies and science. It is saying that the substances in these vegetables and grains contain inhibitors that are unfit for the human digestive system. Fruits do not contain these substances. The enzymes in your saliva may help break the food down some when you chew it to a liquid, so it my pass easier, but it still doesn't nullify the fact that the foods contain the anti-nutrients that inhibit PERFECT digestion. Fruit allows for perfect digestion.