Overall , the studies suggest a modest positive effect of iron supplementation on cognition and psychomotor outcomes in anemic infants and children after supplementation periods of at least 2 months of duration
A systematic review was conducted to summarize the evidence currently available from r and omized controlled trials ( RCTs ) concerning the effect of iron intake of infants , children and adolescents on measures of cognitive development and function .
Iron deficiency and educational achievement in Thailand.
This double-blind clinical trial was conducted in Thail and to assess the impact of iron treatment on the IQ and educational attainment of 1358 9 - 11-y-old children . The children were classified into one of three groups : iron replete , iron depleted , and iron-deficient anemic . The Raven Progressive Matrices was used to measure IQ . A Thai language and a math test were administered to assess school attainment . A 50-mg/d tablet of ferrous sulphate was given for 2 wk and a 100 mg/d tablet , for 14 wk . An anthelminthic drug was given on the day of the blood test before treatment and 3 mo after the intervention started . There is evidence of a positive association between iron status and IQ and a language school achievement test but there is no support for the internal validity of the hypothesis that this association is causal
Overall , the studies suggest a modest positive effect of iron supplementation on cognition and psychomotor outcomes in anemic infants and children after supplementation periods of at least 2 months of duration
A systematic review was conducted to summarize the evidence currently available from r and omized controlled trials ( RCTs ) concerning the effect of iron intake of infants , children and adolescents on measures of cognitive development and function .