Daily iron supplementation on cognitive performance in primary-school-aged children with and without anemia: a

Xiu-Min Guo1, Hui Liu1, Jing Qian2

  • 1Department of Gynaecology and Obstetrics, Liaocheng People's Hospital Shandong, Liaocheng 252000, China.

Insights

Daily iron supplementation does not appear to improve cognitive scores in primary-school-aged children. More research is needed to clarify the effects of iron on cognitive development in this age group.

Area of Science:

  • Pediatric Health
  • Nutritional Science
  • Cognitive Development

Background:

  • Anemia and iron deficiency are significant public health issues in children.
  • Previous studies suggest a link between iron deficiency anemia and impaired cognitive development.
  • The impact of iron supplementation on cognitive function in school-aged children requires further investigation.

Purpose of the Study:

  • To evaluate the efficacy of daily iron supplementation on cognitive performance in primary-school-aged children.
  • To synthesize evidence from randomized and quasi-randomized controlled trials.

Main Methods:

  • Systematic review and random effects meta-analysis of controlled trials.
  • Searched electronic databases (MEDLINE, Wangfang) and other sources up to August 2015.
  • Included studies focused on children aged 5-12 years receiving daily iron supplementation.

Main Results:

  • Five full-text papers involving 1825 children were included in the analysis.
  • Iron supplementation did not demonstrate a significant improvement in global cognitive scores (Mean difference 1.05, 95% CI -2.69 to 4.79).

Conclusions:

  • Current evidence does not support the use of daily iron supplementation to enhance global cognitive outcomes in primary-school-aged children.
  • Further research is necessary to definitively understand the role of iron supplementation in cognitive development for this population.

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