Efficacy of combined iron and zinc supplementation on micronutrient status and growth in Vietnamese infants.

What Was Tested

This randomized controlled trial looks at Vitamin D, K2, Magnesium and Zinc.

To evaluate the effect of combined iron-zinc supplementation on micronutrient status, growth and morbidity.

Who Took Part

PubMed indexes the participants as infants, both men and women.

Randomized, double-masked, placebo-controlled supplementation trial.

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.

Blinding on both sides kept the participants and researchers unaware of who received Vitamin D, K2, Magnesium and Zinc.

Some participants received a placebo instead of Vitamin D, K2, Magnesium and Zinc, giving a reference point.

Rural district of Que Vo, in the Red River Delta in Vietnam.

A total of 915 breast-fed infants aged 4-7 months were included and 784 completed the study.

Hemoglobin (Hb), serum ferritin (SF) and zinc (SZn), and anthropometry were measured before and at the end of the intervention.

What Was Measured

PubMed files the paper under topics including Anthropometry, Dietary Supplements, Drug Interactions, Ferritins, Growth, Hemoglobins and Infant Nutritional Physiological Phenomena.

What This Means in Plain Language

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

Results are reported in around 6 sentences of the abstract; we leave them to the paper itself rather than summarise them.

The publication is from 2006 (European journal of clinical nutrition), a journal based in England.

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