There are two methods of iron supplementation for iron deficiency, one is oral iron supplementation, the other is intravenous iron supplementation, and you can also take dietary supplements at the same time to supplement iron. 1. Oral iron supplementation: If the anemia is caused by iron deficiency, the common iron supplements are ferrous sulfate oral solution, dextrose iron oral solution, etc., at the same time, need to be taken with vitamin C, which can promote the absorption of iron, can be under the guidance of the doctor to choose the appropriate dose and time of iron supplementation. 2. Intravenous iron supplementation: when someone can’t tolerate oral iron, accompanied by nausea, vomiting or stomach pain and other symptoms, and can’t be well absorbed, this time, please go to the hospital immediately, under the guidance of the doctor’s help for intravenous iron supplementation, to achieve the effect of iron supplementation. 3. Dietary supplements: Diet can eat some foods with high iron content such as animal offal, liver, seafood, beef, goat’s milk, etc. to supplement iron. Patients can go to the hospital to check the cause of iron deficiency, and then give targeted supplementary treatment.