1. Seaweed is the general name of marine algae such as kelp, laver, Undaria pinnatifida and seaweed, which grows in seawater and belongs to special polysaccharides, protein, lipids, pigments and low molecular substances. Has the effects of supplementing nutrition and reducing weight.

2, supplementary nutrition: seaweed contains a variety of trace elements, such as iron, zinc, selenium, calcium and so on. Among them, iron is very important for human hematopoietic function, zinc is helpful for children's intellectual development and calcium can make people's bones strong. So eating seaweed can supplement nutrition.

3, weight loss: seaweed is low in calories and contains a lot of cellulose. After eating a small amount, you will feel full, which can be used as a diet food for obese people.