Background Disease severity and mortality rates due to COVID-19 infection are greater in
the elderly and chronically ill patients, populations at high risk for vitamin D deficiency …

Purpose To provide a precise summary and collate the hitherto available clinical evidence
on the effect of vitamin D supplementation on clinical outcomes in COVID-19 patients …

Background: The Olympic preparation of athletes has been highly influenced by COVID and
post-COVID syndrome. As the complex screening of athletes is essential for safe and …

The Coronaviridae family comprises large enveloped single-stranded RNA viruses. The
known human-infecting coronaviruses; severe acute respiratory syndrome coronavirus …

The main purpose of this research was to demonstrate the changes in 25 (OH) D
concentration, bone resorption markers, and physical fitness along the one-year training …

Vitamin D deficiency is highly prevalent in athletes. Increased utilisation and storage
depletion may be key contributing factor. We found a higher prevalence of vitamin D …

Most athletes use dietary supplements (DS) to improve health and performance beyond
what can be achieved through diet. Improvements in health and exercise performance …

Respiratory infections of viral origin have become the leading cause of infectious diseases
in the world. In 2020, the World Health Organization (WHO) declared a pandemic due to …

Methods: PubMed/MEDLINE database was searched from inception till September 30, 2023
using appropriate MeSH terms. The initial search revealed 900 results. Thereafter, titles and …

Objective This study examined the effect of vitamin D supplementation, sunlight
radiationradiation, and home isolation during the COVID-19 pandemic on the seasonal …