Purine content of nori is high, each 100g of nori contains about 500mg purine. Patients with hyperuricemia and gout are not suitable to consume large amounts of nori for a long time, because such diseases are related to abnormal purine metabolism, and patients should try to avoid a high purine diet in their daily life. If they consume large amounts of nori for a long time, it may aggravate hyperuricemia and even induce an acute attack of gout, or increase the risk of cardiovascular disease. If patients with hyperuricemia and gout aggravate their condition after consuming large amounts of nori, they should actively go to the hospital and apply medication under the guidance of a doctor, such as colchicine and non-steroidal anti-inflammatory drugs in the acute stage. It is also advisable to avoid foods with high purine content such as crabs, sea fish, animal offal and beer, and it is recommended to reduce the intake of stimulating drinks such as strong tea and coffee. In addition to patients with hyperuricemia and gout, patients with cardiovascular disease and hyperthyroidism are also not recommended to consume large amounts of nori to avoid aggravating their condition. Healthy people can consume nori appropriately, as there is generally less long-term and large consumption of nori in life, which usually does not cause a large accumulation of purines. In addition to purines, nori is also rich in iodine, which helps promote the synthesis of thyroxine and is beneficial to the body when consumed properly. It should be noted that when eating nori, cooking methods high in oil and salt should be minimized, and patients are advised to make a light diet such as nori and egg soup.