Iron and zinc are both very important electrolytes for the human body. Iron supplementation can be done through food, including foods rich in iron such as pork, beef, pork liver, duck blood, pork kidney or black fungus. If iron supplementation is not enough, oral medication is needed, including ferrous succinate tablets and ferrous sulfate tablets. However, iron supplements may have gastrointestinal irritation during administration, and if the adverse reactions are severe, iron supplementation by infusion, such as infusion of iron dextran, is required. Zinc supplementation can also be done through food. Foods rich in zinc include seafood such as fish and shrimp, as well as shellfish such as oysters and oysters. In addition, foods such as walnuts and egg yolks are also rich in zinc. The most common zinc supplement is zinc gluconate oral solution, which can be taken by infants and children. If you are taking iron and zinc supplements at the same time, it is best to take them at least one hour apart.