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Effects of mode of oral iron administration on serum ferritin and haemoglobin in infants
Magnus Domellöf1, Torbjörn Lind, Bo Lönnerdal
1Department of Clinical Sciences, Paediatrics, Umeå University, Umeå, Sweden. magnus.domellof@pediatri.umu.se
Insights
Iron-fortified foods (FFs) improved hemoglobin (Hb) levels in infants, while medicinal iron drops (MD) primarily boosted iron stores. Both interventions were compared for infant iron status.
Area of Science:
- Pediatric Nutrition
- Hematology
- Public Health
Background:
- Iron deficiency is a global health concern in infants.
- Optimal iron supplementation strategies are crucial for infant development.
- Understanding the differential effects of iron sources is important.
Purpose of the Study:
- To compare the effects of iron-fortified foods (FFs) and medicinal iron drops (MD) on infant iron status.
- To evaluate iron utilization for hemoglobin synthesis versus iron storage.
Main Methods:
- A comparative study analyzing data from medicinal iron drops (MD) and iron-fortified foods (FF) studies.
- Infants (6-9 months) categorized into MD, FF, and low iron (LI) groups based on iron intake and source.
- Iron intake levels and iron status markers (hemoglobin, ferritin) were assessed.
Main Results:
- The iron-fortified foods (FF) group showed significantly higher mean hemoglobin (Hb) at 9 months compared to MD and LI groups.
- The medicinal iron drops (MD) group exhibited significantly higher mean ferritin (SF) at 9 months compared to FF and LI groups.
- Mean iron intake was comparable between MD and FF groups but lower in the LI group.
Conclusions:
- Iron-fortified foods (FFs) are more effective for Hb synthesis in infants.
- Medicinal iron drops (MD) primarily contribute to iron stores.
- Findings suggest distinct roles for different iron delivery methods in infant iron status.
Aim:
To investigate effects of iron-fortified foods (FFs) and medicinal iron drops (MD) on iron status in infants.
Methods:
Data from one MD and one FF study were compared. Infants were divided into groups depending on the predominant source and amount of dietary iron during 6-9 months of age: MD: Medicinal iron drops (1 mg/kg/day). FF: iron intake >1.3 mg/kg/day, predominantly from FF and no iron supplements. Low iron (LI) group: iron intake <1.3 mg/kg/day and no iron supplements.
Results:
Mean iron intake did not differ between MD (n = 30) and FF (n = 35) groups but was lower in the LI (n = 232) group. The FF group had significantly higher mean Hb at 9 months compared to the MD and LI groups (120 vs. 115 g/L and 120 vs. 116 g/L, respectively, p < or = 0.005). The MD group had significantly higher mean SF at 9 months compared to the FF and the LI groups (46 vs. 23 microg/L and 46 vs. 26 microg/L, respectively, p < 0.001).
Conclusions:
Our results suggest that, in healthy, term, nonanaemic 6-9-month-old infants, iron given as medicinal iron drops is primarily deposited into iron stores while iron given as iron-fortified foods is primarily utilized for Hb synthesis.
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