Japanese yam noodles, also known as shirataki noodles or konjac noodles, are a type of noodle made from the root of the konjac yam. They are translucent and have a gelatinous texture, similar to jelly or a firm jellyfish, and are very low in calories and carbohydrates. Japanese yam noodles are high in fiber and contain a type of soluble fiber called glucomannan, which has been shown to have health benefits such as reducing cholesterol and promoting weight loss. Japanese yam noodles can be found in many Japanese and Asian grocery stores, as well as some health food stores. They are a popular ingredient in Japanese cuisine and are often used in soups, stir-fries, and salads. Japanese yam noodles are a great alternative for those who are looking for a low-carb or gluten-free option for their meals.