This book is all about green smoothies. The author researched the diet of chimpanzees, our nearest wild relatives, and found that they grow big and strong on a diet of leaves and fruit. They have all day to chew their greens, breaking down the cell walls and releasing the bountiful nutrients within. We can get the same effect in moments by spinning greens and fruit together in a blender. Boutenko conducted a study with a group of people in southern Oregon who agreed to drink daily green smoothies for a month and claimed many health benefits.