Seaweed, such as laver, Gracilaria lemaneiformis, Undaria pinnatifida, Sargassum, kelp, etc. , rich in high-quality protein, amino acids, vitamins and minerals such as phosphorus, magnesium, sodium, potassium, calcium, iodine, iron, silicon, manganese and zinc. Some of them are not found in terrestrial vegetables. Among the effective components of seaweed, minerals are the most abundant, including calcium, iron, sodium, magnesium, phosphorus and iodine. Modern scientific research believes that regular consumption of seaweed food can effectively regulate the pH of human blood. Because seaweed is an alkaline food rich in calcium, it is beneficial to regulate the acidity of blood and avoid excessive consumption of alkaline elements such as calcium and zinc in the body due to acidic neutralization. Seaweed foods are basically foods with high protein content and little or no fat content. For example, the protein content of seaweed food per 100g is: kelp 8. 2 grams, laver 28. 2 grams, Undaria pinnatifida 14. 2 1 g, Chinese cabbage 1 1. 2 grams. The fat content of seaweed food per100g is: kelp 0. 5 grams, laver 0. 5 grams, Undaria 3. 7 grams, sea cabbage 0. 1 g. Therefore, seaweed food has a unique weight loss effect. In addition, seaweed foods are also rich in methionine and tyrosine. In hair, especially in women's hair, when the above two amino acids are greatly reduced, sulfoalanine will increase obviously, and the hair will become brittle, bifurcated and dull. Regular consumption of seaweed food rich in methionine and tyrosine can make dry hair shiny. Seaweed foods are also rich in vitamins. Vitamin A can maintain the healthy growth of epithelial tissue, vitamin B 1 can smooth the new wrinkles of the skin, and vitamin C can remove or reduce the pigmentation spots on the face and make the skin white. In addition, nutritionists also found that algae can selectively remove carcinogens of heavy metals such as mercury, cadmium and lead. At the same time, the cellulose rich in seaweed food is not easy to be digested and absorbed, which increases gastrointestinal peristalsis after eating, drains the intestine in time, keeps the stool unobstructed, prevents constipation, and is more conducive to the excretion of harmful substances in the body.