Seaweed is set to become a major trend in Western markets. According to Innova Market Insights, sea vegetables such as seaweed, nori, kelp, and wakame saw 21% growth in new product launches from 2012 to 2016, and the commercial seaweed market is projected to reach $17.59 billion by 2021. ith such growth potential, it’s no wonder that companies are becoming creative with their applications for the ingredient. Seaweed is known for its many health benefits.