The difference between sea cabbage and kelp is: 1, the name is different, sea cabbage is also called sea spinach, sea lettuce. Kelp also known as spandex cloth, kombu, river cabbage. 2, respectively, different regions, sea cabbage is distributed in China's Bohai Sea, Yellow Sea, East China Sea, South China Sea. Kelp is distributed in the North Pacific Ocean and the Atlantic Ocean coastal areas. 3, the appearance of different, kelp: spore body large, brown, flattened band, the longest up to 20 m. Cabbage: algae body turquoise, alone or clustered, the shape of the body is often varying sizes of holes.

Sea cabbage for the algal plants Ulva schreberi algal body, also known as sea spinach, sea lettuce, sea strips, moss cabbage. Scientific name "Brasenia schreberi". Green algae, Ulva family. Algae body turquoise, alone or clustered, the form often has a hole of varying sizes. Sea cabbage, algae body turquoise, cells polygonal, mononuclear, chloroplast sheet, a starch nucleus. For two layers of cells composed of membranous body, leaf blade ovoid, edge wavy, 10~30CM high.

Kelp is rich in kelp polysaccharides, so far has been found to have three kinds of polysaccharides: fucoidan, fucoidan, fucoidan starch. It also contains acidic polysaccharides, fucoidan galactopolysaccharide sulfate, macroalginin, galacturonic acid, kombuchine, taurine, bifidogenic factor and many other active ingredients. Kelp is a nutritious edible brown algae, containing more than 60 kinds of nutrients.

It has been determined that every 100g of kelp contains 8g of protein, 0.1g of fat, 0.57mg of carotene, 0.09mg of VB, 0.36mg of VB1, 1.6mg of nicotinic acid, 1.177mg of calcium, 1.50mg of iron, 2.16mg of phosphorus, and is also rich in fucolic acid, cellulose, mannitol, and a variety of trace elements. Kelp is low in calories, moderate in protein and rich in minerals, making it an ideal natural marine food.