Vitamin D Status and Its Association with Multiple Intelligence among Arab Adolescents.

What Was Tested

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

The present study therefore aims to determine the association of vitamin D status with the different domains of intelligence among Saudi Arabian adolescents.

Why It Was Studied

Studies investigating the association of vitamin D on intelligence is limited.

This study used relational survey method among 1864 Saudi adolescent, including 549 boys and 1315 girls (mean age 14.7 ± 1.7 years) recruited using a multistage, stratified cluster randomization of 47 public and private schools in Riyadh in Saudi Arabia.

Who Took Part

The study group was 549 boys.

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

Anthropometrics were measured and fasting blood samples collected for assessment of glucose and lipid profile.

How the Study Was Run

In design terms this was a randomized study.

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

Intelligence was assessed using multiple intelligence inventory.

What Was Measured

A general questionnaire was used to collect demographic information.

Topics PubMed links to this paper include Arabs, Intelligence, Saudi Arabia, Vitamin D and Vitamin D Deficiency.

The authors tagged it with the keywords multiple intelligence and secondary school.

What This Means in Plain Language

The paper is a randomized study of Vitamin D, K2, Magnesium and Zinc in 549 boys.

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

The publication is from 2021 (International journal of environmental research and public health), a journal based in Switzerland.

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