Ryotei No Aji is the most popular Marukome line in Japan. The name means “premium, restaurant-quality taste,” which is exactly what you’ll get from our Nori Instant Miso Soup—without the restaurant wait. Nori is the most commonly used edible seaweed. It is the seaweed usually used in sushi and other Japanese dishes. Though nori has less iodine than other types of seaweeds, it is still an excellent source of iodine, as well as vitamin B12.