It is not kelp.

Sea fungus is rich in a variety of nutrients needed by the human body of marine algae, which contains all the nutrients of land edible plants (protein, vitamins, fiber and calcium, iron, zinc, selenium, iodine, magnesium, phosphorus and other trace elements; but also contains more than 20 kinds of nutrients unique to the sea (alginate, phycocyanin, unsaturated fatty acids, super-oxidizing enzyme, etc.), and therefore the Japanese as a "longevity vegetable", by Europe and America as "the first marine vegetables". "Longevity vegetables", by Europe and the United States and other countries called "the first marine vegetables". Sea fungus in the effective components can dissolve cholesterol in the body, with softening blood vessels, lowering blood lipids, blood purification, prevention of hypertension, myocardial infarction, atherosclerosis, thrombosis of the special effects of the sodium fucoidan and dietary fiber contained in the effective inhibition of blood glucose, prevention and treatment of diabetes, and the algal filtrate and algal polyglucosan contained in the prevention and treatment of cancer has a significant role. Sea fungus is one of the promising species of farmed seaweeds, and is also a favorite food for local residents.