A 14-mo zinc-supplementation trial in apparently healthy Chilean preschool children.

What Was Tested

Researchers studied Vitamin D, K2, Magnesium and Zinc in this randomized controlled trial publication.

Apparently healthy preschool children (46 boys, 52 girls) aged 27-50 mo from low socioeconomic conditions who attended daycare centers in Santiago participated in a 14-mo long double-blind zinc supplementation trial.

Unlike most previous studies, no additional inclusion criteria such as short stature or slow growth rate were considered.

Who Took Part

The abstract describes 46 boys taking part.

The age groups tagged for this paper are young children, both men and women.

How the Study Was Run

The researchers set it up as a randomized, double-blind and placebo-controlled study.

Because people in this Vitamin D, K2, Magnesium and Zinc study were split into groups at random, differences between the groups are less likely to reflect who happened to join each one.

As a double-blind Vitamin D, K2, Magnesium and Zinc study, the assignments were hidden from both participants and investigators until the end.

A placebo (an inactive look-alike) gave the Vitamin D, K2, Magnesium and Zinc group a baseline to be compared against.

What Was Measured

Topics PubMed links to this paper include Analysis of Variance, Body Height, Chile, Dietary Supplements, Growth, Hair and Social Class.

The authors tagged it with the keywords Age Factors, Americas, Anthropometry, Biology, Child and Child Development.

What This Means in Plain Language

The paper is a randomized, double-blind and placebo-controlled study of Vitamin D, K2, Magnesium and Zinc in 46 boys.

The publication is from 1997 (The American journal of clinical nutrition), a journal based in United States.

More context: the Vitamin D, K2, Magnesium and Zinc compound page, all human trials.