It is rich in protein, fat, carbohydrate, dietary fiber, calcium, phosphorus, iron, carotene, vitamin B 1, vitamin B2, nicotinic acid and iodine. Moreover, according to scientific determination, every 100g kelp contains 8g of protein, 0. 1g of fat, 0.57mg of carrot, 0.09mg of vitamin B/kloc-0, 20.36mg of vitamin B, 0.6mg of nicotinic acid/kloc-0, 50mg of iron and 2/kloc of phosphorus. The contents of sugar, calcium and iron are several to dozens times higher than those of spinach and rape. Moreover, kelp also contains some special nutritional chemical components, such as trace elements, alginic acid and mannitol, which are very beneficial to human health.

In food, the iodine content of kelp is very high, with iodine content of 30-70g per 100g. Iodine is an essential trace element for human body and one of the important components of thyroid synthesis. If the human body is in a state of iodine deficiency for a long time, it will cause goiter and affect health. Eating kelp often can replenish iodine for the body in time and prevent goiter. Moreover, pregnant women should eat kelp properly and supplement iodine intake to avoid fetal dysplasia and mental retardation. At the same time, some experts believe that because people consume animal protein, lean meat and sugar every day. It is easy to lead to insufficient thyroid secretion, skin metabolism disorder and white hair. Therefore, it is recommended to eat kelp often to prevent or reduce hair whitening.

Chinese medicine believes that kelp is salty, cold and non-toxic, and has the effects of softening hard mass, resolving phlegm and relieving asthma, diuresis, lowering blood fat and blood pressure, so eating kelp often is very beneficial to the body. Kelp soup can cure hypertension and coronary heart disease in children. Kelp cooked or cold, often eaten can cure the disease; Moreover, kelp is better when mixed with different foods, such as kelp, glutinous rice, mung bean, brown sugar, etc., and porridge can cure wet, toxic and itchy skin; 500 grams of kelp, washed and cut into pieces, cooked and fished out, mixed with 250 grams of white sugar, marinated for 24 hours, 50 grams each time, twice a day, can cure chronic pharyngitis; 60g kelp silk and 150g mung bean are cooked together and seasoned with brown sugar, which can cure children's summer heat, furuncle and summer phlegm-heat cough.

laver

Seaweed is a lower marine cryptophyte in biological classification. Seaweed is rich in many bioactive substances, such as polysaccharides, highly unsaturated fatty acids, taurine, carotenoids, steroids and laminin. Whether used as daily food or extracted as medicine, seaweed is of great benefit to human beings.

Seaweed has unique flavor and nutritional value. Seaweed can be used as a diet food for obese patients, because it is low in calories and contains a lot of cellulose. If you eat a small amount, you will feel full. Seaweed can also be used as a hunger food for diabetics because it contains no sugar; In addition, seaweed, as a health food for patients with hypertension and heart disease, also has excellent health care function. Seaweed contains many trace elements such as iron, zinc, selenium and calcium, which are closely related to human physiological activities. Among them, iron is very important to human hematopoietic function, zinc is helpful to children's intellectual development, and calcium can make people's bones strong. Recent research shows that selenium can prevent cancer and enhance human immune function. Therefore, whether the elderly or young people, eating seaweed can keep fit and prevent and treat diseases.

The seaweed is Porphyra: Rhodophyta, Rhodophyta. Algae are purple or red, composed of single or double layers of cells, and are leaflike, heart-shaped and banded. The false root fixator at the lower part of laver is attached to the rock. The height can reach 20-30 cm. The process of androgyny and reproduction is complicated. 1955, scientists in China made clear the life history of laver for the first time, which consists of three stages: laver, filamentous and laver. The main components of laver are about 50% carbohydrates, about 30% crude protein, rich in vitamins A, B and C, and containing iodine, phosphorus and calcium. It is a common food in China and distributed along the coast of China.

Seaweed has been a medicinal plant since ancient times. The medicinal value of seaweed was listed in Compendium of Materia Medica compiled by Li Shizhen in Ming Dynasty. People eat laver in their daily life, which can cure beriberi and sore throat; Kelp can cure big neck disease, which is a long-standing folk method. Through modern high-tech means, extracting bioactive substances from seaweed and synthesizing drugs provide a new opportunity for the development of traditional Chinese medicine. Algae polysaccharides and polyhalogenated terpenoids in seaweed have the activities of improving human immunity, anticancer and antiviral. Algae polysaccharide can combine with HIV (human acquired immunodeficiency virus) to inactivate it, thus inhibiting virus replication and preventing AIDS; Porphyra polysaccharide can also reduce the lipid content in blood vessels that leads to atherosclerosis and treat cardiovascular and cerebrovascular diseases. β -carotene in spirulina can protect people's eyesight. Highly unsaturated fatty acids EPA (eicosapentaenoic acid) and DHA (docosahexaenoic acid) extracted from deep-sea fish oil can improve brain intelligence and enhance human immunity. These two substances can also be extracted from seaweed. Therefore, using seaweed as raw material to produce drugs can greatly reduce production costs and improve economic benefits. Seaweed can be used not only as food and medicine, but also in agricultural production and cosmetics industry. Seaweed contains organic substances such as indoleacetic acid, plant growth hormone and alginol. When used as fertilizer in planting, it can play the roles of drought resistance, salt-alkali penetration resistance, cold resistance, sterilization and growth promotion. Making seaweed into fertilizer can not only reduce the cost and improve the economic benefit, but also eliminate the harm caused by pesticide residues to human body. Adding seaweed powder to feed can improve meat quality, yield and survival rate, mainly because seaweed has a unique flavor and is rich in amino acids and protein. There is a layer of extremely moist mucus on the surface of seaweed, which is mainly used to protect the surface of seaweed after low tide and prevent it from dying from excessive sun exposure. According to this principle, people have studied this layer of mucus and found that it is a kind of polysaccharide with excellent ductility. Can be made into cosmetics, and has moisturizing and sunscreen effects. At present, the main substance in Dabao SOD honey sold in the market is SOD, whose Chinese name is superoxide dismutase, which can prevent the activation of oxidation factors on the skin surface caused by excessive sun exposure. This enzyme can also be extracted from seaweed.

In a word, seaweed contains a variety of active substances related to human daily life. Seaweed is the representative of marine primary productivity, which is rich in quantity and variety. Humans should realize the value of seaweed and make full use of it. It can not only protect human health, but also protect the biological resources on the earth, so as to make human production and life sustainable. Life originates from the ocean, and only by making full use of the ocean can life move forward.

seaweed

Alginate has antihypertensive effect;

Algae polysaccharide has the function of reducing blood lipid.

In addition, eating seaweed has the effect of losing weight.