When's the last time you really considered what a culinary marvel the smoothie is? Think about it -- you can literally put a head of kale, an entire banana, half a box of strawberries, and a cup of yogurt into a blender, and get something you can slurp down in no time at all. And unlike with fruit juices, you don't lose any fiber from the fruits and vegetables -- it's just in a more "sippable" form. (Plus, it's nice to know you could be lowering your risk of premature death as you enjoy your concoction.)