Kelp is a kind of large practical seaweed with extremely rich nutrition. It contains protein, fat, carotene, vitamins, calcium, iron, phosphorus and so on. Its sugar, calcium and iron contents are several to dozens times higher than those of spinach and rape.

Kelp is not only an excellent food for people to supplement nutrition, but also has many medical functions. It is rich in iodine, and regular consumption is of great benefit to prevent goiter and maintain its normal function. Sodium alginate in kelp can prevent leukemia, myelopathy and arterial bleeding and stop bleeding. In addition, kelp has many medical values.