The effects of micronutrient interventions on other domains were inconsistent .
Improvement in fluid intelligence among micronutrient-deficient children was consistently reported .
BACKGROUND & AIMS Micronutrients are essential for brain development with deficiencies in specific nutrients linked to impaired cognitive function .
Interventions are shown to be beneficial to children 's mental development , particularly in subjects who were micronutrient-deficient at baseline but results on healthy subjects remain inconsistent .
This systematic review evaluated the effect of micronutrient inventions on different cognitive domains .
Effect of micronutrient supplement on health and nutritional status of schoolchildren: mental function.
OBJECTIVE We evaluated the effect of a micronutrient-fortified beverage on mental function in schoolchildren . METHODS This double-blind , placebo-controlled , matched-pair , cluster , r and omized feeding trial assessed baseline before supplementation and after 14 mo in a cohort of 608 children aged 6 to 15 y who received a micronutrient-fortified beverage or placebo .  Children in two classes ( clusters ) in each of nine grade s were assessed for intelligence , attention and concentration , memory , and school achievement . RESULTS Mean intelligence quotient scores of the micronutrient-fortified beverage group and the placebo group at baseline and final follow-up were not significantly different . Mean verbal and performance scores and increments were also not different . After supplementation , attention-concentration increment scores of the micronutrient group were significantly higher ( P < 0.05 ) than those of the placebo group . Mean and incremental scores of the supplemented group on the memory scale were not significantly different from those of the placebo group . CONCLUSIONS Supplementation with a beverage fortified with a range of micronutrients significantly improved attention-concentration over 14 mo , but not intelligence quotient , memory , or school achievement among middle-income schoolchildren
The effects of micronutrient interventions on other domains were inconsistent .
Improvement in fluid intelligence among micronutrient-deficient children was consistently reported .
BACKGROUND & AIMS Micronutrients are essential for brain development with deficiencies in specific nutrients linked to impaired cognitive function .
Interventions are shown to be beneficial to children 's mental development , particularly in subjects who were micronutrient-deficient at baseline but results on healthy subjects remain inconsistent .
This systematic review evaluated the effect of micronutrient inventions on different cognitive domains .