Silver fungus is rich in calcium, iron, potassium, magnesium and other minerals, as well as sugars, fiber, adenine and other nutrients, with the effect of heat detoxification, beauty and skin care. However, there are some taboos when eating silver fungus, such as silver fungus cannot be eaten with iron-rich food and tetracycline drugs, etc.: I. Selection of silver fungus: 1. Avoid deteriorating silver fungus: those with yellow-green surface, corrupt texture, odor and sticky feeling when touched are highly suspected to have the possibility of deterioration, so they need to be avoided to prevent food poisoning; 2. Avoid fresh silver fungus and overnight silver fungus: fresh raw silver fungus When consumed in excess, it is easy to cause food poisoning, while overnight silver fungus is rich in nitrates due to its long storage time, which can be converted into nitrites, and excessive human intake may cause nausea, vomiting, and even coma. Therefore, it is recommended that silver fungus be avoided with spinach, egg yolk, pig liver and other iron-rich foods. 2. tetracycline drugs: silver fungus is rich in calcium, which can react with tetracycline drugs and may have a negative effect on the efficacy of the drugs and the recovery of some people. This may have a negative impact on the efficacy of the medicine and the degree of recovery of some people. Contraindicated groups: 1. People with wind-cold cough and phlegm: Silver fungus is moist and greasy, which will increase the secretion of phlegm in the body, thus aggravating the coughing symptoms and delaying the cure of the disease; 2. People with bleeding: such as hemophilia, leukemia, gastrointestinal bleeding, etc. Because adenine nucleoside in silver fungus has the effect of anti-platelet agglutination, it is not suitable for people with coagulation disorders to eat large amounts of silver fungus; 3. Because of the rich fiber content in silver fungus, patients with diarrhea or gastrointestinal dysfunction should avoid eating large amounts of it to avoid indigestion.