Children with iron deficiency can take oral ferrous sulfate oral solution, or dextran iron oral solution, while supplementing these two drugs, choose one that needs to be taken orally together with vitamin C, because vitamin C is a drug that helps iron absorption. In addition to drug supplementation, also through food together, iron supplementation will generally cause stimulation of the gastrointestinal tract of children, some children after oral iron supplements will affect the gastrointestinal function, may have nausea, so you can use drugs and food together to supplement. Iron-rich foods are mainly animal liver, meat, soy products, egg yolk, including dark vegetables that contain more iron; at the same time, you can eat fruits rich in vitamin C, such as oranges, which are conducive to the absorption of iron.