Kelp is rich in carbohydrates and less in protein and fat.

2. Compared with green leafy vegetables, kelp is rich in vitamin C, and its content of crude protein, sugar, calcium and iron is several times or even ten times higher.

Kelp is a kind of seaweed with high iodine content. Generally, cultured kelp contains 3%~5% iodine, and as much as 7%~ 10%.

Fresh kelp is 95% water and 3% dietary fiber, and its calorie is very low.

Kelp also contains a lot of mannitol. Efficacy and function of kelp 1. Treat hypothyroidism. Because kelp contains a lot of iodine, which is the main substance of thyroid synthesis, if the human body lacks iodine, it will suffer from "coarse neck disease", that is, hypothyroidism, so kelp is the best food for hypothyroidism patients.

Diuretic and detumescence. Kelp also contains a lot of mannitol, which has diuretic and detumescence effects and can prevent and treat renal failure, senile edema and drug poisoning.

. 3. Prevention and treatment of wealth diseases. Mannitol in kelp, together with iodine, potassium and nicotinic acid, has a good preventive and therapeutic effect on arteriosclerosis, hypertension, chronic bronchitis, chronic hepatitis, anemia and edema. The high-quality protein and unsaturated fatty acids in kelp have certain preventive and therapeutic effects on heart disease, diabetes and hypertension.

Reduce radioactive diseases. Kelp colloid can promote the excretion of radioactive substances in the body with stool, thus reducing the accumulation of radioactive substances in the human body and reducing the incidence of radioactive diseases. Eating kelp regularly can make your hair moist and black.

Keep out the cold. Kelp also has the function of keeping out the cold. People who are afraid of cold in winter often eat it, which can effectively improve their ability to keep out the cold.

Fight cancer. In recent years, it has been found that seaweed foods such as kelp, laver and seaweed have anti-cancer effects. Among them, the prevention and treatment of colorectal cancer and breast cancer have been affirmed. According to the statistics of the United Nations Health Organization, Japanese women rarely get breast cancer, mainly because they eat more kelp. The main reasons why American women suffer from breast cancer are eating less kelp, eating more meat and drinking more milk. According to the statistics of relevant experts, the average prevalence rate of elderly people who eat kelp for many years is 5% ~ 8%, and their life expectancy is increased by 4-8 years.