Vitamin D, best known for its role in skeletal health, has emerged as a key regulator of innate
immune responses to microbial threat. In immune cells such as macrophages, expression of …

Background: Open Access Editor's Choice Systematic Review COVID-19 Mortality Risk
Correlates Inversely with Vitamin D3 Status, and a Mortality Rate Close to Zero Could …

Objective: Vitamin D deficiency has been associated with an increased risk of COVID-19
severity. This multi-center randomized clinical trial aims to determine the effects of 5000 IU …

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 …

To assess the evidence on SARS-CoV2 infection and Covid-19 in relation to deficiency and
supplementation of vitamin D, we conducted a systematic review up to April 2021. We …

Insufficient blood levels of the neurohormone vitamin D are associated with increased risk of
COVID-19 severity and mortality. Despite the global rollout of vaccinations and promising …

Introduction Vitamin D levels have been reported to be associated with COVID-19
susceptibility, severity, and mortality events. We performed a meta-analysis of randomized …

African Americans have higher incidence of, and mortality from, many health-related
problems than European Americans. They also have a 15 to 20-fold higher prevalence of …

Although observational studies of health outcomes generally suggest beneficial effects with,
or following, higher serum 25-hydroxyvitamin D [25 (OH) D] concentrations, randomized …

Background The evidence regarding the efficacy of vitamin D supplementation in reducing
severity of COVID-19 is still insufficient. This is partially due to the lack of primary robust trial …