• Am. J. Clin. Nutr. · Jun 2008

    Randomized Controlled Trial Multicenter Study

    A micronutrient-fortified seasoning powder reduces morbidity and improves short-term cognitive function, but has no effect on anthropometric measures in primary school children in northeast Thailand: a randomized controlled trial.

    • Mari Skar Manger, Joanne E McKenzie, Pattanee Winichagoon, Andrew Gray, Visith Chavasit, Tippawan Pongcharoen, Sueppong Gowachirapant, Bruce Ryan, Emorn Wasantwisut, and Rosalind S Gibson.
    • Institute of Nutrition, Mahidol University, Salaya, Thailand.
    • Am. J. Clin. Nutr. 2008 Jun 1;87(6):1715-22.

    BackgroundReductions in iodine and zinc deficiencies and improvements in hemoglobin were achieved from a micronutrient-fortified seasoning powder consumed in school lunches by children in northeast Thailand.ObjectiveThe objective was to determine whether fortification with 4 micronutrients in a school lunch results in changes in children's growth, morbidity, and cognitive function compared with no fortification.DesignIn a randomized controlled trial of 569 children aged 5.5-13.4 y from 10 schools, we compared the efficacy of a seasoning powder fortified with or without 5 mg Fe, 5 mg Zn, 50 mug I, and 270 mug vitamin A per serving consumed with a school lunch 5 d/wk. Here we report on results of the secondary functional outcomes.ResultsThe groups were comparable concerning compliance and loss to follow-up. The intervention had no statistically significant effect on anthropometric measures over 31 wk, but reduced the incidence of respiratory-related illnesses [rate ratio (RR): 0.83; 95% CI: 0.73, 0.94], symptoms of runny nose (RR: 0.80; 95% CI: 0.70, 0.92), cough (RR: 0.80; 95% CI: 0.66, 0.96), and diarrhea (RR: 0.38; 95% CI: 0.16, 0.90). For the visual recall test, those in the fortified group recalled 0.5 more items (95% CI: 0.1, 0.9) than did the controls. There were no statistically significant differences between groups in the results of the digits forward and backward tests or in school grades at the conclusion of the 2 semesters.ConclusionThe beneficial effects on morbidity and visual recall over a short period, in addition to some biochemical improvements, highlight the potential of this micronutrient-fortified seasoning powder supplied in a school lunch. This trial was registered at clinical trials.gov as ACTRN12605000341628.

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