Acute Vitamin D₃ Supplementation in Severe Obesity: Evaluation of Multimeric Adiponectin.

What Was Tested

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

Obesity predisposes to vitamin D deficiency (VDD) and glucose abnormalities.

During the 4-week study, dieting promoted a similar magnitude of weight loss in VD and PL groups.

Who Took Part

The abstract describes 12 subjects taking part.

By PubMed's age tags, the people studied were adults, both men and women.

How the Study Was Run

In design terms this was a randomized, single-blind, placebo-controlled and parallel-group study.

Random assignment meant chance, not the researchers, decided who got Vitamin D, K2, Magnesium and Zinc and who got the comparison, which limits bias.

In this single-blind Vitamin D, K2, Magnesium and Zinc study one party knew the assignments and the other did not.

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

The Vitamin D, K2, Magnesium and Zinc group and the comparison group ran side by side rather than switching.

What Was Measured

The subject headings attached to it are Adiponectin, Body Mass Index, Caloric Restriction, Cholecalciferol, Exercise, Insulin Resistance and Leptin.

The authors tagged it with the keywords multimeric adiponectin, obesity, vitamin D and weight loss.

What This Means in Plain Language

The paper is a randomized, single-blind and placebo-controlled study of Vitamin D, K2, Magnesium and Zinc in 12 subjects.

With fewer than 40 people, it is a small study, so it is better read as an early signal for further research than as a settled answer.

The publication is from 2017 (Nutrients), a journal based in Switzerland.

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