Book excerpt: Green smoothies are not the sugary concoctions that come to mind when people hear the word "smoothie." They are instead highly nutritious creations that are intended to increase energy, boost metabolism, burn fat, and cleanse the body of toxins. Green smoothies utilize fresh, healthful foods, "superfoods," and a multitude of fantastic ingredients that together offer amazing health benefits. The Complete Idiot's Guide® to Green Smoothies starts with the health benefits of green smoothies and how to make them properly and fully enjoy them, while the bulk of the book is comprised of 150 fun, nutritious, and delicious recipes, supplemented with numerous variations throughout.