Konjac or more commonly known as Shirataki Noodles are made from Konjac root powder. Konjac is an Asian root vegetable similar to potato in texture but doesn't have starchy carbs. Since it has twice as much fiber as regular pasta and is also Gluten-Free, it is preferred by people who follows healthy diets. It comes in all varieties of pastas. Konjac Penne are a favorite food item among Vegans.