Iron Deficiency Anemia Management in Children

Diagnostic Approach and Treatment

The American Academy of Pediatrics recommends confirming anemia with repeat hemoglobin/hematocrit before initiating treatment, and in non-acutely ill children with positive screening, making a presumptive diagnosis and beginning treatment immediately 1, 2
Serum ferritin ≤15 μg/L confirms iron deficiency, and the World Health Organization suggests this as a diagnostic criterion 1, 2
Prescribe 3 mg/kg per day of elemental iron (ferrous sulfate preferred) administered between meals for optimal absorption, as recommended by the Centers for Disease Control and Prevention 1, 2
Ferrous sulfate is preferred over other iron salts because it is most cost-effective and provides known amounts of elemental iron, according to the National Institutes of Health 2
Avoid administering iron with meals or milk, as food reduces absorption by up to 50%, as stated by the American College of Nutrition 1, 2
Continue treatment for 2-3 months after hemoglobin normalizes to replenish iron stores, as advised by the European Society for Pediatric Gastroenterology 1, 2

For infants <12 months, 1 mg/kg/day iron drops are recommended for breastfed infants with insufficient dietary iron, by the Academy of Breastfeeding Medicine 2
For preterm/low birthweight infants, 2-4 mg/kg/day iron drops (maximum 15 mg/day) from 1 month until 12 months are suggested, by the American Academy of Pediatrics 2
Repeat hemoglobin/hematocrit at 4 weeks to assess treatment response, and an increase of ≥1 g/dL in hemoglobin or ≥3% in hematocrit confirms diagnosis and adequate response, as recommended by the World Health Organization 1, 2

Limit cow's milk intake to maximum 24 ounces daily, as excessive milk consumption is a major contributor to iron deficiency, according to the American Academy of Pediatrics 1, 2, 3
Introduce iron-fortified cereals (two or more servings daily starting at 4-6 months) and add vitamin C-rich foods with meals to enhance iron absorption, as suggested by the National Institutes of Health 1, 2
Do not administer iron with meals or milk, do not discontinue iron treatment prematurely, and do not overlook dietary counseling, as emphasized by the Centers for Disease Control and Prevention 1, 2, 3

Iron deficiency anemia in infants causes neurodevelopmental delays, decreased motor activity, impaired social interaction, and reduced attention span that may persist beyond school age if not fully reversed, as stated by the World Health Organization 1
Anemia management in children with chronic kidney disease is understudied, with no RCTs examining effects of ESA and iron on hard clinical outcomes in pediatric patients, according to the American Journal of Kidney Diseases 4, 5
Newer iron agents (ferric pyrophosphate, ferric citrate) may be efficacious in children, but more data needed, as reported by Kidney International 6

Co‑administering vitamin C‑rich foods (e.g., citrus fruits, tomatoes, bell peppers) with elemental iron improves intestinal absorption, supporting more effective treatment of iron‑deficiency anemia in children. 7

Consuming calcium‑containing foods or supplements at the same time as iron therapy interferes with iron uptake, potentially diminishing the therapeutic benefit of iron supplementation in pediatric patients. 7