This time, we focus on konnyaku. This jiggly gray ingredient may have subtle flavoring, but it's an essential part of Japanese cuisine, often used in simmered and fried dishes. Konnyaku is high in fiber and low in calories, and is popular for dieting. It's even been used recently to make bread, noodles, smoothies, and more. From preparation to consumption, we learn all about konnyaku, which is gaining attention around the world as a superfood.