Seaweed is used in more than just sushi. It can be found in almond milk, baby food and lotion. Kelp is used in medicine, animal feed, fertilizer and even as a biofuel. That’s why the commercial seaweed market size could surpass $85 billion by 2026, according to Global Market Insights. Seaweed farmer Bren Smith says all one needs to start in the business is $20,000, twenty acres and a boat, and that investment in a single seaweed farm can net up to $90,000 to $120,000 per year. Here’s why the global demand in seaweed is expected to boom in the coming years.