Nasoya Pasta Zero Plus All Natural Shirataki Fettuccine has 15 calories and four grams carbs per serving; regular pasta has 220 calories and 43 grams carbs per serving. 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), shirataki is composed of soluble fiber (glucomannan) which provides a slightly firmer texture than wheat noodles and significantly less calories and carbohydrates....