![Risk/caution of vitamin D insufficiency for quarantined athletes returning to play after COVID-19 | BMJ Open Sport & Exercise Medicine Risk/caution of vitamin D insufficiency for quarantined athletes returning to play after COVID-19 | BMJ Open Sport & Exercise Medicine](https://bmjopensem.bmj.com/content/bmjosem/6/1/e000882/F1.large.jpg)
Risk/caution of vitamin D insufficiency for quarantined athletes returning to play after COVID-19 | BMJ Open Sport & Exercise Medicine
![Vitamin D deficiency is associated with COVID‐19 positivity and severity of the disease - Demir - 2021 - Journal of Medical Virology - Wiley Online Library Vitamin D deficiency is associated with COVID‐19 positivity and severity of the disease - Demir - 2021 - Journal of Medical Virology - Wiley Online Library](https://onlinelibrary.wiley.com/cms/asset/577c20ff-31d0-47ee-8fcd-af42952cc314/jmv26832-fig-0001-m.jpg)
Vitamin D deficiency is associated with COVID‐19 positivity and severity of the disease - Demir - 2021 - Journal of Medical Virology - Wiley Online Library
![Vitamin D deficiency in association with endothelial dysfunction: Implications for patients withCOVID-19 Vitamin D deficiency in association with endothelial dysfunction: Implications for patients withCOVID-19](https://article.imrpress.com/journal/RCM/21/3/10.31083/j.rcm.2020.03.131/2153-8174-21-3-339/fig1.png)
Vitamin D deficiency in association with endothelial dysfunction: Implications for patients withCOVID-19
![Vitamin D and COVID 19: The Evidence for Prevention and Treatment of Coronavirus (SARS CoV 2) - YouTube Vitamin D and COVID 19: The Evidence for Prevention and Treatment of Coronavirus (SARS CoV 2) - YouTube](https://i.ytimg.com/vi/ha2mLz-Xdpg/maxresdefault.jpg)
Vitamin D and COVID 19: The Evidence for Prevention and Treatment of Coronavirus (SARS CoV 2) - YouTube
![Vitamin D, Immune System & SARS-CoV-2 (COVID-19) | Mechanism of Vit D Immune Regulation & Overview - YouTube Vitamin D, Immune System & SARS-CoV-2 (COVID-19) | Mechanism of Vit D Immune Regulation & Overview - YouTube](https://i.ytimg.com/vi/zd_oGkGJr04/maxresdefault.jpg)
Vitamin D, Immune System & SARS-CoV-2 (COVID-19) | Mechanism of Vit D Immune Regulation & Overview - YouTube
![Low vitamin D levels do not aggravate COVID-19 risk or death, and vitamin D supplementation does not improve outcomes in hospitalized patients with COVID-19: a meta-analysis and GRADE assessment of cohort studies Low vitamin D levels do not aggravate COVID-19 risk or death, and vitamin D supplementation does not improve outcomes in hospitalized patients with COVID-19: a meta-analysis and GRADE assessment of cohort studies](https://media.springernature.com/lw685/springer-static/image/art%3A10.1186%2Fs12937-021-00744-y/MediaObjects/12937_2021_744_Fig1_HTML.png)
Low vitamin D levels do not aggravate COVID-19 risk or death, and vitamin D supplementation does not improve outcomes in hospitalized patients with COVID-19: a meta-analysis and GRADE assessment of cohort studies
![Medicina | Free Full-Text | Evidence for the Efficacy of a High Dose of Vitamin D on the Hyperinflammation State in Moderate-to-Severe COVID-19 Patients: A Randomized Clinical Trial Medicina | Free Full-Text | Evidence for the Efficacy of a High Dose of Vitamin D on the Hyperinflammation State in Moderate-to-Severe COVID-19 Patients: A Randomized Clinical Trial](https://www.mdpi.com/medicina/medicina-58-01358/article_deploy/html/images/medicina-58-01358-g001.png)
Medicina | Free Full-Text | Evidence for the Efficacy of a High Dose of Vitamin D on the Hyperinflammation State in Moderate-to-Severe COVID-19 Patients: A Randomized Clinical Trial
![Exploring the link between vitamin D and clinical outcomes in COVID-19 | American Journal of Physiology-Endocrinology and Metabolism Exploring the link between vitamin D and clinical outcomes in COVID-19 | American Journal of Physiology-Endocrinology and Metabolism](https://journals.physiology.org/cms/10.1152/ajpendo.00517.2020/asset/images/medium/e-00517-2020r01.png)
Exploring the link between vitamin D and clinical outcomes in COVID-19 | American Journal of Physiology-Endocrinology and Metabolism
![Vitamin D deficiency predicts 30-day hospital mortality of adults with COVID -19 - Clinical Nutrition ESPEN Vitamin D deficiency predicts 30-day hospital mortality of adults with COVID -19 - Clinical Nutrition ESPEN](https://clinicalnutritionespen.com/cms/attachment/e2eadbc2-8597-4dd7-a90c-027e876f7c71/gr1_lrg.jpg)
Vitamin D deficiency predicts 30-day hospital mortality of adults with COVID -19 - Clinical Nutrition ESPEN
![Vitamin D Deficiency and Covid-19: Its Central Role in a World Pandemic: Anderson, Dr David C, Grimes, Dr David S: 9780956213273: Amazon.com: Books Vitamin D Deficiency and Covid-19: Its Central Role in a World Pandemic: Anderson, Dr David C, Grimes, Dr David S: 9780956213273: Amazon.com: Books](https://m.media-amazon.com/images/I/51CQztlV+FL._AC_UF1000,1000_QL80_.jpg)
Vitamin D Deficiency and Covid-19: Its Central Role in a World Pandemic: Anderson, Dr David C, Grimes, Dr David S: 9780956213273: Amazon.com: Books
![Preventing vitamin D deficiency during the COVID-19 pandemic: UK definitions of vitamin D sufficiency and recommended supplement dose are set too low | RCP Journals Preventing vitamin D deficiency during the COVID-19 pandemic: UK definitions of vitamin D sufficiency and recommended supplement dose are set too low | RCP Journals](https://www.rcpjournals.org/content/clinmedicine/21/1/e48/F1.large.jpg)
Preventing vitamin D deficiency during the COVID-19 pandemic: UK definitions of vitamin D sufficiency and recommended supplement dose are set too low | RCP Journals
![Vitamin D supplementation as a rational pharmacological approach in the COVID-19 pandemic | American Journal of Physiology-Lung Cellular and Molecular Physiology Vitamin D supplementation as a rational pharmacological approach in the COVID-19 pandemic | American Journal of Physiology-Lung Cellular and Molecular Physiology](https://journals.physiology.org/cms/10.1152/ajplung.00186.2020/asset/images/medium/aj-alun200028f002.gif)