nutraceuticals
| An observational and Mendelian randomisation study on vitamin D and COVID-19 risk in UK Biobank |
| An overview of the MATH+, I-MASK+ and I-RECOVER Protocols — A Guide to the Management of COVID-19 |
| Analysis of vitamin D level among asymptomatic and critically ill COVID?19 patients and its correlation with infammatory markers |
| COVID-19 Mortality Risk Correlates Inversely with Vitamin D3 Status, and a Mortality Rate Close to Zero Could Theoretically Be Achieved at 50 ng/mL 25(OH)D3: Results of a Systematic Review and Meta-Analysis |
| Critical appraisal of multidrug therapy in the ambulatory management of patients with COVID-19 and hypoxemia |
| Effect of calcifediol treatment and best available therapy versus best available therapy on intensive care unit admission and mortality among patients hospitalized for COVID-19: A pilot randomized clinical study |
| Endogenous Deficiency of Glutathione as the Most Likely Cause of Serious Manifestations and Death in COVID-19 Patients |
| Evidence Regarding Vitamin D and Risk of COVID-19 and Its Severity |
| High-Dose Cholecalciferol Booster Therapy is Associated with a Reduced Risk of Mortality in Patients with COVID-19: A Cross-Sectional Multi-Centre Observational Study |
| Impact of Serum 25(OH) Vitamin D Level on Mortality in Patients with COVID-19 in Turkey |
| Oral Co-Supplementation of Curcumin, Quercetin, and Vitamin D3 as an Adjuvant Therapy for Mild to Moderate Symptoms of COVID-19—Results From a Pilot Open-Label, Randomized Controlled Trial |
| Pre-infection 25-hydroxyvitamin D3 levels and association with severity of COVID-19 illness |
| Preventive Vitamin D Supplementation and Risk for COVID-19 Infection: A Systematic Review and Meta-Analysis |
| Rapid and Effective Vitamin D Supplementation May Present Better Clinical Outcomes in COVID-19 (SARS-CoV-2) Patients by Altering Serum INOS1, IL1B, IFNg, Cathelicidin-LL37, and ICAM1 |
| SARS-CoV-2 positivity rates associated with circulating 25-hydroxyvitamin D levels |
| Seasonal UV exposure and vitamin D: Association with the dynamics of COVID-19 transmission in Europe |
| Short term, high-dose vitamin D supplementation for COVID-19 disease: a randomised, placebo-controlled, study (SHADE study) |
| Strong Correlation Between Prevalence of Severe Vitamin D Deficiency and Population Mortality Rate from COVID-19 in Europe |
| The Impact of Vitamin D Supplementation on Mortality Rate and Clinical Outcomes of COVID-19 Patients: A Systematic Review and Meta-Analysis |
| The link between vitamin D deficiency and Covid-19 in a large population |
| The role of Vitamin D in the prevention of Coronavirus Disease 2019 infection and mortality |
| The sufficient vitamin D and albumin level have a protective effect on COVID-19 infection |
| Vitamin D and survival in COVID-19 patients: A quasi-experimental study |
| Vitamin D deficiency as a predictor of poor prognosis in patients with acute respiratory failure due to COVID-19 |
| Vitamin D Insufficiency May Account for Almost Nine of Ten COVID-19 Deaths: Time to Act. Comment on: “Vitamin D Deficiency and Outcome of COVID-19 Patients” |
| Vitamin D Status in Hospitalized Patients with SARS-CoV-2 Infection |
| Vitamin D supplementation to prevent acute respiratory tract infections: systematic review and meta-analysis of individual participant data |
| Vitamin D: A key player in COVID‑19 immunity and lessons from the pandemic to combat immune‑evasive variants |
| Vitamin D: A Role Also in Long COVID-19? |
