Vitamin D-fortified foods improve wintertime vitamin D status in women of Danish and Pakistani origin living in Denmark: a randomized controlled trial.

What Was Tested

The paper reports a study of Vitamin D, K2, Magnesium and Zinc, published as a randomized controlled trial.

Low vitamin D status is prevalent worldwide.

The researchers aim to investigate the effect of vitamin D fortification on serum 25-hydroxyvitamin D (25(OH)D) concentration in women of Danish and Pakistani origin at risk of vitamin D deficiency.

Who Took Part

According to the abstract, 143 women were involved.

The age groups tagged for this paper are adults, women only.

Participants were 143 women of Danish and Pakistani origin, living in Denmark, randomized into four groups, stratified by ethnicity.

How the Study Was Run

The design is described as randomized, double-blind and placebo-controlled.

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

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

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

What Was Measured

The subject headings attached to it are Denmark, Food, Fortified, Pakistan, Seasons, Vitamin D, Vitamin D Deficiency and Vitamins.

The authors tagged it with the keywords Food-based RCT, Fortified foods, ODIN, Women of Danish origin and Women of Pakistani origin.

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 143 women.

The abstract goes on to report its results in about 6 sentences; this page does not restate them, so read the paper for the findings and their limits.

The publication is from 2020 (European journal of nutrition), a journal based in Germany.

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