Can the supplementation of vitamin D, sun exposure, and isolation during the COVID-19 pandemic affect the seasonal concentration of 25(OH)D and selected blood parameters among young soccer players in a one-year training season?

Plain-language guide to PMID 37132382 (2023): controlled clinical trial of Vitamin D, K2, Magnesium and Zinc.

Key Facts

PMID: 37132382
Journal: Journal of the International Society of Sports Nutrition
Year: 2023
Study type: Controlled Clinical Trial
Authors: Jastrzębska J et al. (7 authors)
DOI: 10.1080/15502783.2023.2206802

What This Study Did, in Plain Language

What Was Tested

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

This study examined the effect of vitamin D supplementation, sunlight radiationradiation, and home isolation during the COVID-19 pandemic on the seasonal changes in 25(OH)D concentration and selected biomarkers in young soccer players along a one-year training cycle.

Who Took Part

By PubMed's age tags, the people studied were teenagers.

Only 24 players completed the measurements during all four time- points (T1-: September 2019, T2-: December 2019, T3-: May 2020, and T4-: August 2020) and were divided into two subgroups: supplemented group (GS) and placebo group (GP).

How the Study Was Run

The design is described as placebo-controlled.

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

Forty elite young soccer players (age: 17.2 ± 1.16 years, body mass: 70.2 ± 5.84, and body height: 179.1 ± 4.26 cm) participated in the research.

Several biomarkers such as 25(OH)D, white blood cells (WBC), red blood cells (RBC), hemoglobin (HGB), muscle damage markersmarkers, and lipid profile were measured.

What Was Measured

The subject headings attached to it are Biomarkers, COVID-19, Dietary Supplements, Hemoglobins, Pandemics, Seasons and Soccer.

Author keywords: Supplementation, football and home-based training.

What This Means in Plain Language

The paper is a placebo-controlled study of Vitamin D, K2, Magnesium and Zinc.

Results are reported in around 4 sentences of the abstract; we leave them to the paper itself rather than summarise them.

The publication is from 2023 (Journal of the International Society of Sports Nutrition), a journal based in United States.

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

Our Notes on the Compound

Vitamin D, K2, Magnesium and Zinc: Magnesium is described as required for AMPK to function.

Vitamin D, K2, Magnesium and Zinc in the library

Source: PubMed record. This explanation is written by PeptideWhiz from the public record. For research and education only. Not medical advice; no dosing information is given.