Deficiency, iron means: Iron deficiency: A lack of iron. This is the most widespread form of nutritional disorder known. Hemoglobin is a molecule that transports oxygen in red blood cells and requires iron. Anemia is caused by iron deficiency. Iron deficiency occurs most often in children under five years of age and pregnant women. Iron deficiency in pregnant women increases the chance of preterm births and babies born with low birthweight. Iron deficiency can cause developmental delays and behavioral problems, as well as failure to thrive and an increase in infections. Iron supplements or iron-rich foods can be used to treat iron deficiency. Iron-rich foods include poultry, eggs and vegetables. Iron supplements shouldn’t be administered to children without the approval of a doctor.
(in Medical Dictionary)