In addition, pregnant women and lactating mothers should not eat more kelp. This is because iodine in kelp can enter the fetus and baby with blood circulation, causing thyroid dysfunction. People with spleen and stomach deficiency and cold should eat carefully, and those with hyperthyroidism and iodine excess should not eat.
In addition, the arsenic content in kelp is also very high, reaching 35-50 mg/kg, which is caused by seawater pollution. Arsenic and arsenic compounds are toxic, and trivalent arsenic (such as arsenic) is the most toxic. Although pentavalent arsenic is less toxic, it can still be converted into trivalent arsenic in human body.
However, kelp also has a high health care function, and it is no problem for normal people to eat it 2 ~ 3 times a week.
Health care function of kelp;
Kelp is a kind of vegetable with high nutritional value and has certain medicinal value. It is rich in mineral elements such as iodine. Kelp is low in calories, moderate in protein content and rich in minerals. It is found that kelp has many biological functions, such as lowering blood fat, lowering blood sugar, regulating immunity, anticoagulation, anti-tumor, lead excretion, detoxification, anti-oxidation and so on.