Zinc's importance in ensuring normal growth and development is underlined in a 1986 study of Ecuadorian pre-schoolers with low zinc intake. The children were paired by sex, age and height: one in each pair was given a zinc supplement, the other a placebo. The resul;ts over 15 months showed a slow, steady gain in the supplemented children's height as compared with the non-supplemental group.
Source: H. Dirren et al 'Zinc supplementation and child growth in Ecuador, in Nutrient Regulation during pregnancy, lactation and infant growth.
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