One book I checked out the library has 50 detailed recipes, with the calorie count and nutrition information for each. A few of the smoothies pack a lot of calories! They seem more like a meal replacement. The smoothies use a variety of ingredients. Some of the more interesting are silken tofu, almond milk, rice milk, soy milk, yogurt (plain or flavored), and tahini or peanut butter. So any of you use any of these? I'm not sure about tofu, as I've never done anything with it. I've tried almond milk, but not rice milk. And I'm not interested in anything soy. Yogurt's cool, and I love peanut butter.