Iron deficiency is a relatively common phenomenon in children, for children with iron deficiency to eat what iron supplementation effect is the best according to the degree of iron deficiency and other judgment, such as iron deficiency caused by anemia need oral iron treatment. Iron deficiency is more common in children, mostly due to insufficient iron intake caused by some of the iron loss and other factors, iron deficiency can cause severe anemia, severe cases can affect the growth and development of the baby. For children with iron deficiency what to eat iron effect, according to the degree of iron deficiency to decide, such as for the baby has not yet caused anemia, can be through the eating iron-rich foods, such as iron fortification of rice flour, egg yolks, spinach and other iron supplementation. For babies with anemia caused by iron deficiency, they should be treated with iron supplements under the guidance of a physician. Oral divalent iron salt preparations, such as ferrous sulfate and iron pyrophosphate, are usually used for treatment. The above medications should be used under the guidance of a physician, and if the baby’s blood routine, serum iron, etc. suggests iron deficiency anemia, it is recommended that the intervention of a specialist physician guide the treatment.