Low dietary magnesium increases supraventricular ectopy.

What Was Tested

Researchers studied Magnesium in this randomized controlled trial publication.

The researchers tested the hypothesis that an intake of magnesium considerably below the recommended dietary allowance can produce chemical and physiologic evidence of depletion.

Who Took Part

The age groups tagged for this paper are middle-aged adults and older adults, women only.

Dietary assignments were random and double blind in a crossover design.

How the Study Was Run

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

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

Neither the participants nor the staff measuring them knew who was on Magnesium, so expectations could not easily colour the readings.

In the crossover set-up each of the participants took both Magnesium and the comparison in turn, acting as their own control.

Magnesium concentrations were measured by spectroscopy and ion-specific electrolyte analysis, and Holter electrocardiograms lasting approximate 21 h were recorded.

What Was Measured

Topics PubMed links to this paper include Electrocardiography, Electrocardiography, Ambulatory, Magnesium, Magnesium Deficiency, Nutrition Policy, Nutritional Requirements and Postmenopause.

What This Means in Plain Language

The paper is a randomized, double-blind and crossover study of Magnesium.

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 2002 (The American journal of clinical nutrition), a journal based in United States.

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