Shirataki, or "white waterfall" noodles have been enjoyed as a health food in Asia for over 1000 years. Made from the root of the konjac plant (sometimes called a Konnyaku potato), shiataki is composed of soluble fiber (glucomannan) which provides a slightly firmer texture than wheat noodles and significantly less calories and carbohydrates. Dieters also tout that shirataki noodles help to keepo you feeling full longer. Try it with tomato sauce! Made with shirataki, it’s low-calorie and gluten-free.