[New aspects on preventive iron supplementation in normal pregnancy]

Area of Science:

• Obstetrics and Gynecology
• Nutritional Science
• Neonatal Medicine

Context:

• Increased iron demand during pregnancy often exceeds dietary intake in Western countries.
• Iron deficiency anemia is a common concern in pregnant populations.
• Understanding iron metabolism is crucial for maternal and infant health.

Purpose:

• To provide an overview of iron metabolism and supplementation during pregnancy.
• To discuss the benefits and risks associated with iron supplementation.
• To recommend guidelines for iron supplementation based on S-ferritin levels.

Summary:

• Pregnancy significantly increases iron requirements, often unmet by diet alone in regions like Norway.
• Iron supplementation may enhance neonatal cerebral function, but high doses pose risks.
• Low-dose iron (50-100 mg/day) from week 20 is advised for pregnant women with S-ferritin 20-60 µg/L.

Impact:

• Early S-ferritin measurement can guide individualized iron supplementation strategies.
• Appropriate iron supplementation can optimize maternal iron status and positively influence neonatal neurodevelopment.
• This guidance aims to prevent adverse effects while maximizing benefits of iron therapy in pregnancy.