You can eat nori in early pregnancy. The content of iodine, calcium, phosphorus, protein, riboflavin and carotene in nori tops all kinds of vegetables and is a treasure trove of nutrients that pregnant women should take in. Nori contains selenium, which is an important mineral that can enhance the body’s immune function and protect human health. Regular consumption of nori can also be anti-radiation, anti-mutation and antioxidant. It is prone to memory loss and anemia during pregnancy. Nori contains choline and iron, etc. Properly these can enhance memory, prevent anemia and promote the growth of fetal bones and teeth. Nori is cold in nature and should not be consumed in excess by pregnant women with a cold spleen and stomach. Nori should be placed in a dry environment, moisture deterioration of the nori can not be eaten. Nori and persimmon should not be eaten together because nori is a food rich in calcium ions. Eating it with persimmons, which contain too much tannic acid, will produce insoluble bonds that will affect the absorption of calcium.