NORI Japanese dried seaweed is farmed in coastal regions, particularly in Setouchi and Kyushu regions of Japan. Nori is available throughout the year, but the harvesting period is between November to March. Seaweed is low in fat with soluble fiber, which helps control blood sugar levels. The fiber can help you feel full on very few calories. It is a great source of vitamins A, C, E, K, and B vitamins.