Growth, bone mass, and vitamin D status of Chinese adolescent girls 3 y after withdrawal of milk supplementation.

What Was Tested

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

The aim was to evaluate whether these effects were sustained 3 y after supplement withdrawal.

Why It Was Studied

Girls who received milk fortified with both calcium and vitamin D also had better vitamin D status than did girls who received nothing or girls who received milk fortified only with calcium.

Who Took Part

The abstract describes 501 girls taking part.

The age groups tagged for this paper are children and teenagers, women only.

As in the intervention phase, total-body bone mineral content and bone mineral density and serum 25-hydroxyvitamin D concentrations were measured in half of these subjects.

How the Study Was Run

The design is described as randomized.

The girls were allocated by chance, so the Vitamin D, K2, Magnesium and Zinc group and the comparison group should start out alike.

What Was Measured

PubMed files the paper under topics including Absorptiometry, Photon, Body Height, Bone Density, Bone Development, Calcium, Dietary, China and Dietary Supplements.

What This Means in Plain Language

The paper is a randomized study of Vitamin D, K2, Magnesium and Zinc in 501 girls.

With several hundred people or more, it is a fairly large study for this kind of research.

Its findings take up roughly 6 sentences of the abstract and are left out here on purpose; the source paper is the place to read them.

The publication is from 2006 (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.