Kelp: Kelp is a large brown algae that grows in seawater. The medicinal use is called "Kun'er". It has become a healthy food on the table and is known as the "longevity dish". Kelp is rich in iodine and can be used to prevent and treat goiter.

In 100 grams of kelp, the protein content is 82 grams; carbohydrates are 5629 grams, which is beyond the reach of most land and water vegetables; calcium and iron contents are extremely rich, as high as 177 mg and 150 mg respectively; The iodine content is particularly eye-catching, reaching 240 mg, while the average adult has 150 mg per day to meet the needs; in addition, 100 grams of kelp also contains 075 mg of carotene, 1009 mg of vitamin B, 16 mg of niacin, and 261 mg of phosphorus. Cobalt 22 mg; kelp contains almost no fat and contains a large amount of cellulose, alginate, etc.