Germans, like many other Europeans, are vitamin D insufficient - only 12 percent have more than 30 ng - 2015 | VitaminDWiki
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PDF) Evidence that Vitamin D Supplementation Could Reduce Risk of Influenza and COVID-19 Infections and Deaths
![Table 2 from Safety and Efficacy of Weekly 30,000 IU Vitamin D Supplementation as a Slower Loading Dose Administration Compared to a Daily Maintenance Schedule in Deficient Patients: A Randomized, Controlled Clinical Table 2 from Safety and Efficacy of Weekly 30,000 IU Vitamin D Supplementation as a Slower Loading Dose Administration Compared to a Daily Maintenance Schedule in Deficient Patients: A Randomized, Controlled Clinical](https://d3i71xaburhd42.cloudfront.net/036f0bcf0ada8cd263df3ef094c14e91e4e161fd/4-Table2-1.png)
Table 2 from Safety and Efficacy of Weekly 30,000 IU Vitamin D Supplementation as a Slower Loading Dose Administration Compared to a Daily Maintenance Schedule in Deficient Patients: A Randomized, Controlled Clinical
![Vitamin D and COVID-19: evidence and recommendations for supplementation | Royal Society Open Science Vitamin D and COVID-19: evidence and recommendations for supplementation | Royal Society Open Science](https://royalsocietypublishing.org/cms/asset/32973cdb-115e-4c0c-ba30-77a00aaf2d0e/rsos201912f03.jpg)
Vitamin D and COVID-19: evidence and recommendations for supplementation | Royal Society Open Science
NutritionFacts.org - An updated meta-analysis has shown that as population vitamin D levels go up, mortality appears to go down and stay down. The safe dose of vitamin D supplementation to get
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Safety and efficacy of a new supplementation protocol in patients with cystic fibrosis and vitamin D deficiency - ScienceDirect
![Frontiers | A Basic Review of the Preliminary Evidence That COVID-19 Risk and Severity Is Increased in Vitamin D Deficiency Frontiers | A Basic Review of the Preliminary Evidence That COVID-19 Risk and Severity Is Increased in Vitamin D Deficiency](https://www.frontiersin.org/files/Articles/561571/fpubh-08-00513-HTML/image_m/fpubh-08-00513-g001.jpg)
Frontiers | A Basic Review of the Preliminary Evidence That COVID-19 Risk and Severity Is Increased in Vitamin D Deficiency
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