{"id":23381,"date":"2021-04-07T08:42:26","date_gmt":"2021-04-07T12:42:26","guid":{"rendered":"https:\/\/smarttan.com\/news\/?p=23381"},"modified":"2021-04-07T08:42:26","modified_gmt":"2021-04-07T12:42:26","slug":"demonstrated-effectiveness-of-vitamin-d-for-covid-19","status":"publish","type":"post","link":"https:\/\/news.smarttan.com\/index.php\/demonstrated-effectiveness-of-vitamin-d-for-covid-19\/","title":{"rendered":"Demonstrated Effectiveness of Vitamin D for COVID-19"},"content":{"rendered":"<p><em>From GrassrootsHealth<\/em><\/p>\n<h4>Meta-analysis of 43 studies supports therapeutic and prognostic role of vitamin D for COVID-19 infections<\/h4>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"alignright size-medium wp-image-6095\" src=\"https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2021\/04\/man-taking-vitamin-d-300x225.jpg\" sizes=\"(max-width: 300px) 100vw, 300px\" srcset=\"https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2021\/04\/man-taking-vitamin-d-300x225.jpg 300w, https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2021\/04\/man-taking-vitamin-d-768x576.jpg 768w, https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2021\/04\/man-taking-vitamin-d-1024x768.jpg 1024w, https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2021\/04\/man-taking-vitamin-d-260x195.jpg 260w\" alt=\"\" width=\"300\" height=\"225\" \/>An extensive amount of research has now been published on the relationship between\u00a0<a href=\"https:\/\/www.grassrootshealth.net\/blog\/review-vitamin-d-immune-health\/#immune\/\">vitamin D and immune health<\/a>, from demonstrating the physiological roles of vitamin D within the immune cells, tissues, and organs, to the observed relationship between vitamin D levels and disease outcomes. It is factual knowledge that the body needs a supply of vitamin D in order to effectively fight off certain infections and diseases. A new meta-analysis shows that this seems to be especially true in the case of COVID-19.<\/p>\n<h3>Meta-analysis of Vitamin D\u2019s Association with COVID-19 Disease and Outcomes<\/h3>\n<p>A\u00a0<a href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0960076021000765?via%3Dihub\" target=\"_blank\" rel=\"noopener\">review by Petrelli et al.<\/a>\u00a0included 43 studies with data from a total of 612,601 COVID-19 patients that had been published from the beginning of the COVID-19 pandemic through January 31, 2021. All papers included data on vitamin D and COVID-19 disease risk, severity, and\/or mortality. The primary outcome of the review was to see if there was a difference between COVID-19 infection risk among individuals with or without vitamin D deficiency (defined as vitamin D levels below 20 ng\/ml or 50 nmol\/L). Secondary outcomes of the review were severity and death due to COVID-19, as well as the therapeutic effect of vitamin D supplementation.<\/p>\n<h3>COVID-19 Infection Risk<\/h3>\n<p>Risk of COVID-19 infection was 50% higher among those whose vitamin D levels were below 20 ng\/ml (50 nmol\/L) compared to those whose levels were at least 20 ng\/ml (P=.02).<\/p>\n<p><a href=\"https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2021\/04\/Petrelli-COVID-Infection-Risk.pdf\"><img decoding=\"async\" class=\"aligncenter wp-image-6087\" src=\"https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2021\/04\/Petrelli-COVID-Infection-Risk.png\" sizes=\"(max-width: 600px) 100vw, 600px\" srcset=\"https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2021\/04\/Petrelli-COVID-Infection-Risk.png 1642w, https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2021\/04\/Petrelli-COVID-Infection-Risk-300x253.png 300w, https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2021\/04\/Petrelli-COVID-Infection-Risk-768x647.png 768w, https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2021\/04\/Petrelli-COVID-Infection-Risk-1024x862.png 1024w, https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2021\/04\/Petrelli-COVID-Infection-Risk-260x219.png 260w\" alt=\"\" width=\"600\" height=\"505\" \/><\/a><\/p>\n<p><a href=\"https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2021\/04\/Petrelli-COVID-Infection-Risk.pdf\">Click to Enlarge &amp; Print<\/a><\/p>\n<h3>COVID-19 Severity Risk<\/h3>\n<p>Risk of severe COVID-19, defined as the need for intensive care and\/or mechanical ventilation, was 160% higher among those with vitamin D levels below 20 ng\/ml (50 nmol\/L) compared to those whose levels were 20 ng\/ml or higher (P&lt;.01).<\/p>\n<p><a href=\"https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2021\/04\/Petrelli-COVID-Infection-Severity.pdf\"><img decoding=\"async\" class=\"aligncenter wp-image-6089\" src=\"https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2021\/04\/Petrelli-COVID-Infection-Severity.png\" sizes=\"(max-width: 600px) 100vw, 600px\" srcset=\"https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2021\/04\/Petrelli-COVID-Infection-Severity.png 1644w, https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2021\/04\/Petrelli-COVID-Infection-Severity-300x252.png 300w, https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2021\/04\/Petrelli-COVID-Infection-Severity-768x646.png 768w, https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2021\/04\/Petrelli-COVID-Infection-Severity-1024x861.png 1024w, https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2021\/04\/Petrelli-COVID-Infection-Severity-260x219.png 260w\" alt=\"\" width=\"600\" height=\"505\" \/><\/a><\/p>\n<p><a href=\"https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2021\/04\/Petrelli-COVID-Infection-Severity.pdf\">Click to Enlarge &amp; Print<\/a><\/p>\n<h3>COVID-19 Death Risk<\/h3>\n<p>Risk of death due to COVID-19 was 22% higher among those with vitamin D levels below 20 ng\/ml (50 nmol\/L) compared to those whose levels were 20 ng\/ml or higher (P&lt;.01).<\/p>\n<p><a href=\"https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2021\/04\/Petrelli-COVID-Infection-Death.pdf\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-6091\" src=\"https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2021\/04\/Petrelli-COVID-Infection-Death.png\" sizes=\"(max-width: 600px) 100vw, 600px\" srcset=\"https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2021\/04\/Petrelli-COVID-Infection-Death.png 1642w, https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2021\/04\/Petrelli-COVID-Infection-Death-300x253.png 300w, https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2021\/04\/Petrelli-COVID-Infection-Death-768x647.png 768w, https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2021\/04\/Petrelli-COVID-Infection-Death-1024x862.png 1024w, https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2021\/04\/Petrelli-COVID-Infection-Death-260x219.png 260w\" alt=\"\" width=\"600\" height=\"505\" \/><\/a><\/p>\n<p><a href=\"https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2021\/04\/Petrelli-COVID-Infection-Death.pdf\">Click to Enlarge &amp; Print<\/a><\/p>\n<h3>Vitamin D Supplementation and Risk<\/h3>\n<p>Vitamin D supplementation of various doses reduced the risk of severe COVID-19 disease by 73% (P&lt;.01) and death by 59% (P=.01).<\/p>\n<h3>Overall Risk of Severe COVID-19 Very Strongly Associated with Vitamin D<\/h3>\n<p>The combined set of studies that evaluated COVID-19 severity and vitamin D levels can be seen on the forest plot below.<\/p>\n<p><a href=\"https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2021\/04\/Petrelli-Forest-Plot.pdf\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-6093\" src=\"https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2021\/04\/Petrelli-Forest-Plot.png\" sizes=\"(max-width: 600px) 100vw, 600px\" srcset=\"https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2021\/04\/Petrelli-Forest-Plot.png 1874w, https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2021\/04\/Petrelli-Forest-Plot-300x190.png 300w, https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2021\/04\/Petrelli-Forest-Plot-768x486.png 768w, https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2021\/04\/Petrelli-Forest-Plot-1024x648.png 1024w, https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2021\/04\/Petrelli-Forest-Plot-260x164.png 260w\" alt=\"\" width=\"600\" height=\"379\" \/><\/a><\/p>\n<p><a href=\"https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2021\/04\/Petrelli-Forest-Plot.pdf\">Click to Enlarge &amp; Print<\/a><\/p>\n<p>The purpose of a\u00a0<a href=\"http:\/\/tantalusmedical.com\/quick-guide-interpreting-forest-plots\/\" target=\"_blank\" rel=\"noopener\">forest plot<\/a>\u00a0is to help you \u201csee the forest among the trees.\u201d They are used often in a meta-analysis, such as this paper, to summarize the results from individual studies. The idea is to compare two categories for one outcome, in this case, highest vs. lowest vitamin D levels for risk of severe COVID-19 disease. The vertical line, labeled as 1, indicates that the risk of severe COVID-19 is the same for both categories. A relative risk less than 1.0 indicates lower risk with higher vitamin D levels and a relative risk above 1.0 indicates higher risk with lower vitamin D levels. In this plot, almost all of the points are to the right, showing a higher risk of severe COVID-19 disease with lower vitamin D levels. Each point also has an associated bar with it \u2013 this represents the 95% confidence interval used in statistics. In reality it means the point could be anywhere along that line. Finally the big diamond at the bottom is the aggregate risk for all of the studies, and represents the 160% increased risk of severe COVID-19 disease among those with lower vitamin D levels demonstrated by this review.<\/p>\n<h3>In Conclusion<\/h3>\n<p>Vitamin D plays essential anti-inflammatory and antiviral roles within the body, and a deficiency can lead to decreased immunity and a lacking immune response. This review solidifies the already demonstrated importance of maintaining healthy vitamin D levels, especially for immune response against COVID-19. The\u00a0<a href=\"http:\/\/grassrootshealth.net\/project\/our-scientists\/\">GrassrootsHealth panel of international vitamin D scientists<\/a>\u00a0recommends a vitamin D level between 40-60 ng\/ml (100-150 nmol\/L) \u2013\u00a0<a href=\"https:\/\/daction.grassrootshealth.net\/tests\/\">what is your vitamin D level<\/a>?<\/p>\n<p><a href=\"https:\/\/www.grassrootshealth.net\/blog\/demonstrated-effectiveness-vitamin-d-covid-19\/\" target=\"_blank\" rel=\"noopener\">Click here for more from GrassrootsHealth.<\/a><\/p>\n<p>&nbsp;<\/p>\n<p><i>SmartTan.com news articles regularly report medical and scientific information to keep you abreast of current events related to UV light. This information is not intended to be used by any party to make unwarranted health claims to promote sunbed usage. Indoor tanning businesses are obligated to communicate a fair and balanced message to all clients about your products and services including the potential risks associated with indoor tanning. Contact your Smart Tan representative to find out more about what you can and can\u2019t say in your tanning salon business.<\/i><\/p>\n<p><i>\u00a9 2021 International Smart Tan Network. All rights reserved.<\/i><\/p>\n","protected":false},"excerpt":{"rendered":"<p>From GrassrootsHealth Meta-analysis of 43 studies supports therapeutic and prognostic role of vitamin D for COVID-19 infections An extensive amount of research has now been published on the relationship between\u00a0vitamin D and immune health, from demonstrating the physiological roles of vitamin D within the immune cells, tissues, and organs, to the observed relationship between vitamin [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":23383,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-23381","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Demonstrated Effectiveness of Vitamin D for COVID-19 - Smart Tan News<\/title>\n<meta name=\"description\" content=\"From GrassrootsHealth Meta-analysis of 43 studies supports therapeutic and prognostic role of vitamin D for COVID-19 infections An extensive amount of research has now been published on the relationship between\u00a0vitamin D and immune health, from demonstrating the physiological roles of vitamin D within the immune cells, tissues, and organs, to the observed relationship between vitamin D levels and disease outcomes. It is factual knowledge that the body needs a supply of vitamin D in order to effectively fight off certain infections and diseases. A new meta-analysis shows that this seems to be especially true in the case of COVID-19. Meta-analysis of Vitamin D\u2019s Association with COVID-19 Disease and Outcomes A\u00a0review by Petrelli et al.\u00a0included 43 studies with data from a total of 612,601 COVID-19 patients that had been published from the beginning of the COVID-19 pandemic through January 31, 2021. All papers included data on vitamin D and COVID-19 disease risk, severity, and\/or mortality. The primary outcome of the review was to see if there was a difference between COVID-19 infection risk among individuals with or without vitamin D deficiency (defined as vitamin D levels below 20 ng\/ml or 50 nmol\/L). Secondary outcomes of the review were severity and death due to COVID-19, as well as the therapeutic effect of vitamin D supplementation. COVID-19 Infection Risk Risk of COVID-19 infection was 50% higher among those whose vitamin D levels were below 20 ng\/ml (50 nmol\/L) compared to those whose levels were at least 20 ng\/ml (P=.02).    Click to Enlarge &amp; Print COVID-19 Severity Risk Risk of severe COVID-19, defined as the need for intensive care and\/or mechanical ventilation, was 160% higher among those with vitamin D levels below 20 ng\/ml (50 nmol\/L) compared to those whose levels were 20 ng\/ml or higher (P&lt;.01).    Click to Enlarge &amp; Print COVID-19 Death Risk Risk of death due to COVID-19 was 22% higher among those with vitamin D levels below 20 ng\/ml (50 nmol\/L) compared to those whose levels were 20 ng\/ml or higher (P&lt;.01).    Click to Enlarge &amp; Print Vitamin D Supplementation and Risk Vitamin D supplementation of various doses reduced the risk of severe COVID-19 disease by 73% (P&lt;.01) and death by 59% (P=.01). Overall Risk of Severe COVID-19 Very Strongly Associated with Vitamin D The combined set of studies that evaluated COVID-19 severity and vitamin D levels can be seen on the forest plot below.    Click to Enlarge &amp; Print  The purpose of a\u00a0forest plot\u00a0is to help you \u201csee the forest among the trees.\u201d They are used often in a meta-analysis, such as this paper, to summarize the results from individual studies. The idea is to compare two categories for one outcome, in this case, highest vs. lowest vitamin D levels for risk of severe COVID-19 disease. The vertical line, labeled as 1, indicates that the risk of severe COVID-19 is the same for both categories. A relative risk less than 1.0 indicates lower risk with higher vitamin D levels and a relative risk above 1.0 indicates higher risk with lower vitamin D levels. In this plot, almost all of the points are to the right, showing a higher risk of severe COVID-19 disease with lower vitamin D levels. Each point also has an associated bar with it \u2013 this represents the 95% confidence interval used in statistics. In reality it means the point could be anywhere along that line. Finally the big diamond at the bottom is the aggregate risk for all of the studies, and represents the 160% increased risk of severe COVID-19 disease among those with lower vitamin D levels demonstrated by this review. In Conclusion Vitamin D plays essential anti-inflammatory and antiviral roles within the body, and a deficiency can lead to decreased immunity and a lacking immune response. This review solidifies the already demonstrated importance of maintaining healthy vitamin D levels, especially for immune response against COVID-19. The\u00a0GrassrootsHealth panel of international vitamin D scientists\u00a0recommends a vitamin D level between 40-60 ng\/ml (100-150 nmol\/L) \u2013\u00a0what is your vitamin D level?  Click here for more from GrassrootsHealth.  &nbsp;  SmartTan.com news articles regularly report medical and scientific information to keep you abreast of current events related to UV light. This information is not intended to be used by any party to make unwarranted health claims to promote sunbed usage. Indoor tanning businesses are obligated to communicate a fair and balanced message to all clients about your products and services including the potential risks associated with indoor tanning. Contact your Smart Tan representative to find out more about what you can and can\u2019t say in your tanning salon business.  \u00a9 2021 International Smart Tan Network. All rights reserved.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/news.smarttan.com\/index.php\/demonstrated-effectiveness-of-vitamin-d-for-covid-19\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Demonstrated Effectiveness of Vitamin D for COVID-19 - Smart Tan News\" \/>\n<meta property=\"og:description\" content=\"From GrassrootsHealth Meta-analysis of 43 studies supports therapeutic and prognostic role of vitamin D for COVID-19 infections An extensive amount of research has now been published on the relationship between\u00a0vitamin D and immune health, from demonstrating the physiological roles of vitamin D within the immune cells, tissues, and organs, to the observed relationship between vitamin D levels and disease outcomes. It is factual knowledge that the body needs a supply of vitamin D in order to effectively fight off certain infections and diseases. A new meta-analysis shows that this seems to be especially true in the case of COVID-19. Meta-analysis of Vitamin D\u2019s Association with COVID-19 Disease and Outcomes A\u00a0review by Petrelli et al.\u00a0included 43 studies with data from a total of 612,601 COVID-19 patients that had been published from the beginning of the COVID-19 pandemic through January 31, 2021. All papers included data on vitamin D and COVID-19 disease risk, severity, and\/or mortality. The primary outcome of the review was to see if there was a difference between COVID-19 infection risk among individuals with or without vitamin D deficiency (defined as vitamin D levels below 20 ng\/ml or 50 nmol\/L). Secondary outcomes of the review were severity and death due to COVID-19, as well as the therapeutic effect of vitamin D supplementation. COVID-19 Infection Risk Risk of COVID-19 infection was 50% higher among those whose vitamin D levels were below 20 ng\/ml (50 nmol\/L) compared to those whose levels were at least 20 ng\/ml (P=.02).    Click to Enlarge &amp; Print COVID-19 Severity Risk Risk of severe COVID-19, defined as the need for intensive care and\/or mechanical ventilation, was 160% higher among those with vitamin D levels below 20 ng\/ml (50 nmol\/L) compared to those whose levels were 20 ng\/ml or higher (P&lt;.01).    Click to Enlarge &amp; Print COVID-19 Death Risk Risk of death due to COVID-19 was 22% higher among those with vitamin D levels below 20 ng\/ml (50 nmol\/L) compared to those whose levels were 20 ng\/ml or higher (P&lt;.01).    Click to Enlarge &amp; Print Vitamin D Supplementation and Risk Vitamin D supplementation of various doses reduced the risk of severe COVID-19 disease by 73% (P&lt;.01) and death by 59% (P=.01). Overall Risk of Severe COVID-19 Very Strongly Associated with Vitamin D The combined set of studies that evaluated COVID-19 severity and vitamin D levels can be seen on the forest plot below.    Click to Enlarge &amp; Print  The purpose of a\u00a0forest plot\u00a0is to help you \u201csee the forest among the trees.\u201d They are used often in a meta-analysis, such as this paper, to summarize the results from individual studies. The idea is to compare two categories for one outcome, in this case, highest vs. lowest vitamin D levels for risk of severe COVID-19 disease. The vertical line, labeled as 1, indicates that the risk of severe COVID-19 is the same for both categories. A relative risk less than 1.0 indicates lower risk with higher vitamin D levels and a relative risk above 1.0 indicates higher risk with lower vitamin D levels. In this plot, almost all of the points are to the right, showing a higher risk of severe COVID-19 disease with lower vitamin D levels. Each point also has an associated bar with it \u2013 this represents the 95% confidence interval used in statistics. In reality it means the point could be anywhere along that line. Finally the big diamond at the bottom is the aggregate risk for all of the studies, and represents the 160% increased risk of severe COVID-19 disease among those with lower vitamin D levels demonstrated by this review. In Conclusion Vitamin D plays essential anti-inflammatory and antiviral roles within the body, and a deficiency can lead to decreased immunity and a lacking immune response. This review solidifies the already demonstrated importance of maintaining healthy vitamin D levels, especially for immune response against COVID-19. The\u00a0GrassrootsHealth panel of international vitamin D scientists\u00a0recommends a vitamin D level between 40-60 ng\/ml (100-150 nmol\/L) \u2013\u00a0what is your vitamin D level?  Click here for more from GrassrootsHealth.  &nbsp;  SmartTan.com news articles regularly report medical and scientific information to keep you abreast of current events related to UV light. This information is not intended to be used by any party to make unwarranted health claims to promote sunbed usage. Indoor tanning businesses are obligated to communicate a fair and balanced message to all clients about your products and services including the potential risks associated with indoor tanning. Contact your Smart Tan representative to find out more about what you can and can\u2019t say in your tanning salon business.  \u00a9 2021 International Smart Tan Network. All rights reserved.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/news.smarttan.com\/index.php\/demonstrated-effectiveness-of-vitamin-d-for-covid-19\/\" \/>\n<meta property=\"og:site_name\" content=\"Smart Tan News\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/SmartTan\" \/>\n<meta property=\"article:published_time\" content=\"2021-04-07T12:42:26+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/news.smarttan.com\/wp-content\/uploads\/2021\/04\/Sun-Covid-4-7-21.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1360\" \/>\n\t<meta property=\"og:image:height\" content=\"1000\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"smarttannews\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@SmartTan\" \/>\n<meta name=\"twitter:site\" content=\"@SmartTan\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"smarttannews\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/news.smarttan.com\/index.php\/demonstrated-effectiveness-of-vitamin-d-for-covid-19\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/news.smarttan.com\/index.php\/demonstrated-effectiveness-of-vitamin-d-for-covid-19\/\"},\"author\":{\"name\":\"smarttannews\",\"@id\":\"https:\/\/news.smarttan.com\/#\/schema\/person\/722dc7049af55e0ed743d67ce9ed4819\"},\"headline\":\"Demonstrated Effectiveness of Vitamin D for COVID-19\",\"datePublished\":\"2021-04-07T12:42:26+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/news.smarttan.com\/index.php\/demonstrated-effectiveness-of-vitamin-d-for-covid-19\/\"},\"wordCount\":775,\"publisher\":{\"@id\":\"https:\/\/news.smarttan.com\/#organization\"},\"image\":{\"@id\":\"https:\/\/news.smarttan.com\/index.php\/demonstrated-effectiveness-of-vitamin-d-for-covid-19\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/news.smarttan.com\/wp-content\/uploads\/2021\/04\/Sun-Covid-4-7-21.jpg\",\"articleSection\":[\"News\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/news.smarttan.com\/index.php\/demonstrated-effectiveness-of-vitamin-d-for-covid-19\/\",\"url\":\"https:\/\/news.smarttan.com\/index.php\/demonstrated-effectiveness-of-vitamin-d-for-covid-19\/\",\"name\":\"Demonstrated Effectiveness of Vitamin D for COVID-19 - Smart Tan News\",\"isPartOf\":{\"@id\":\"https:\/\/news.smarttan.com\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/news.smarttan.com\/index.php\/demonstrated-effectiveness-of-vitamin-d-for-covid-19\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/news.smarttan.com\/index.php\/demonstrated-effectiveness-of-vitamin-d-for-covid-19\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/news.smarttan.com\/wp-content\/uploads\/2021\/04\/Sun-Covid-4-7-21.jpg\",\"datePublished\":\"2021-04-07T12:42:26+00:00\",\"description\":\"From GrassrootsHealth Meta-analysis of 43 studies supports therapeutic and prognostic role of vitamin D for COVID-19 infections An extensive amount of research has now been published on the relationship between\u00a0vitamin D and immune health, from demonstrating the physiological roles of vitamin D within the immune cells, tissues, and organs, to the observed relationship between vitamin D levels and disease outcomes. It is factual knowledge that the body needs a supply of vitamin D in order to effectively fight off certain infections and diseases. A new meta-analysis shows that this seems to be especially true in the case of COVID-19. Meta-analysis of Vitamin D\u2019s Association with COVID-19 Disease and Outcomes A\u00a0review by Petrelli et al.\u00a0included 43 studies with data from a total of 612,601 COVID-19 patients that had been published from the beginning of the COVID-19 pandemic through January 31, 2021. All papers included data on vitamin D and COVID-19 disease risk, severity, and\/or mortality. The primary outcome of the review was to see if there was a difference between COVID-19 infection risk among individuals with or without vitamin D deficiency (defined as vitamin D levels below 20 ng\/ml or 50 nmol\/L). Secondary outcomes of the review were severity and death due to COVID-19, as well as the therapeutic effect of vitamin D supplementation. COVID-19 Infection Risk Risk of COVID-19 infection was 50% higher among those whose vitamin D levels were below 20 ng\/ml (50 nmol\/L) compared to those whose levels were at least 20 ng\/ml (P=.02). Click to Enlarge &amp; Print COVID-19 Severity Risk Risk of severe COVID-19, defined as the need for intensive care and\/or mechanical ventilation, was 160% higher among those with vitamin D levels below 20 ng\/ml (50 nmol\/L) compared to those whose levels were 20 ng\/ml or higher (P&lt;.01). Click to Enlarge &amp; Print COVID-19 Death Risk Risk of death due to COVID-19 was 22% higher among those with vitamin D levels below 20 ng\/ml (50 nmol\/L) compared to those whose levels were 20 ng\/ml or higher (P&lt;.01). Click to Enlarge &amp; Print Vitamin D Supplementation and Risk Vitamin D supplementation of various doses reduced the risk of severe COVID-19 disease by 73% (P&lt;.01) and death by 59% (P=.01). Overall Risk of Severe COVID-19 Very Strongly Associated with Vitamin D The combined set of studies that evaluated COVID-19 severity and vitamin D levels can be seen on the forest plot below. Click to Enlarge &amp; Print The purpose of a\u00a0forest plot\u00a0is to help you \u201csee the forest among the trees.\u201d They are used often in a meta-analysis, such as this paper, to summarize the results from individual studies. The idea is to compare two categories for one outcome, in this case, highest vs. lowest vitamin D levels for risk of severe COVID-19 disease. The vertical line, labeled as 1, indicates that the risk of severe COVID-19 is the same for both categories. A relative risk less than 1.0 indicates lower risk with higher vitamin D levels and a relative risk above 1.0 indicates higher risk with lower vitamin D levels. In this plot, almost all of the points are to the right, showing a higher risk of severe COVID-19 disease with lower vitamin D levels. Each point also has an associated bar with it \u2013 this represents the 95% confidence interval used in statistics. In reality it means the point could be anywhere along that line. Finally the big diamond at the bottom is the aggregate risk for all of the studies, and represents the 160% increased risk of severe COVID-19 disease among those with lower vitamin D levels demonstrated by this review. In Conclusion Vitamin D plays essential anti-inflammatory and antiviral roles within the body, and a deficiency can lead to decreased immunity and a lacking immune response. This review solidifies the already demonstrated importance of maintaining healthy vitamin D levels, especially for immune response against COVID-19. The\u00a0GrassrootsHealth panel of international vitamin D scientists\u00a0recommends a vitamin D level between 40-60 ng\/ml (100-150 nmol\/L) \u2013\u00a0what is your vitamin D level? Click here for more from GrassrootsHealth. &nbsp; SmartTan.com news articles regularly report medical and scientific information to keep you abreast of current events related to UV light. This information is not intended to be used by any party to make unwarranted health claims to promote sunbed usage. Indoor tanning businesses are obligated to communicate a fair and balanced message to all clients about your products and services including the potential risks associated with indoor tanning. Contact your Smart Tan representative to find out more about what you can and can\u2019t say in your tanning salon business. \u00a9 2021 International Smart Tan Network. All rights reserved.\",\"breadcrumb\":{\"@id\":\"https:\/\/news.smarttan.com\/index.php\/demonstrated-effectiveness-of-vitamin-d-for-covid-19\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/news.smarttan.com\/index.php\/demonstrated-effectiveness-of-vitamin-d-for-covid-19\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/news.smarttan.com\/index.php\/demonstrated-effectiveness-of-vitamin-d-for-covid-19\/#primaryimage\",\"url\":\"https:\/\/news.smarttan.com\/wp-content\/uploads\/2021\/04\/Sun-Covid-4-7-21.jpg\",\"contentUrl\":\"https:\/\/news.smarttan.com\/wp-content\/uploads\/2021\/04\/Sun-Covid-4-7-21.jpg\",\"width\":1360,\"height\":1000,\"caption\":\"Happy fun man open hand arms take off face mask, put back. Covid 19 sick stop, lockdown end after ill. New normal safe life escape step, sun sky city fresh air breath joy, god love faith pray concept.\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/news.smarttan.com\/index.php\/demonstrated-effectiveness-of-vitamin-d-for-covid-19\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/news.smarttan.com\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Demonstrated Effectiveness of Vitamin D for COVID-19\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/news.smarttan.com\/#website\",\"url\":\"https:\/\/news.smarttan.com\/\",\"name\":\"Smart Tan News\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\/\/news.smarttan.com\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/news.smarttan.com\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/news.smarttan.com\/#organization\",\"name\":\"Smart Tan\",\"url\":\"https:\/\/news.smarttan.com\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/news.smarttan.com\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/smarttan.com\/news\/wp-content\/uploads\/2022\/08\/Smart-Tan.png\",\"contentUrl\":\"https:\/\/smarttan.com\/news\/wp-content\/uploads\/2022\/08\/Smart-Tan.png\",\"width\":500,\"height\":164,\"caption\":\"Smart Tan\"},\"image\":{\"@id\":\"https:\/\/news.smarttan.com\/#\/schema\/logo\/image\/\"},\"sameAs\":[\"https:\/\/www.facebook.com\/SmartTan\",\"https:\/\/x.com\/SmartTan\"]},{\"@type\":\"Person\",\"@id\":\"https:\/\/news.smarttan.com\/#\/schema\/person\/722dc7049af55e0ed743d67ce9ed4819\",\"name\":\"smarttannews\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/secure.gravatar.com\/avatar\/c0189f76465f47ce293287354f8076bfdb83130e65538eb34fcd2cd44e9f0e53?s=96&d=mm&r=g\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/c0189f76465f47ce293287354f8076bfdb83130e65538eb34fcd2cd44e9f0e53?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/c0189f76465f47ce293287354f8076bfdb83130e65538eb34fcd2cd44e9f0e53?s=96&d=mm&r=g\",\"caption\":\"smarttannews\"},\"url\":\"https:\/\/news.smarttan.com\/index.php\/author\/smarttannews\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Demonstrated Effectiveness of Vitamin D for COVID-19 - Smart Tan News","description":"From GrassrootsHealth Meta-analysis of 43 studies supports therapeutic and prognostic role of vitamin D for COVID-19 infections An extensive amount of research has now been published on the relationship between\u00a0vitamin D and immune health, from demonstrating the physiological roles of vitamin D within the immune cells, tissues, and organs, to the observed relationship between vitamin D levels and disease outcomes. It is factual knowledge that the body needs a supply of vitamin D in order to effectively fight off certain infections and diseases. A new meta-analysis shows that this seems to be especially true in the case of COVID-19. Meta-analysis of Vitamin D\u2019s Association with COVID-19 Disease and Outcomes A\u00a0review by Petrelli et al.\u00a0included 43 studies with data from a total of 612,601 COVID-19 patients that had been published from the beginning of the COVID-19 pandemic through January 31, 2021. All papers included data on vitamin D and COVID-19 disease risk, severity, and\/or mortality. The primary outcome of the review was to see if there was a difference between COVID-19 infection risk among individuals with or without vitamin D deficiency (defined as vitamin D levels below 20 ng\/ml or 50 nmol\/L). Secondary outcomes of the review were severity and death due to COVID-19, as well as the therapeutic effect of vitamin D supplementation. COVID-19 Infection Risk Risk of COVID-19 infection was 50% higher among those whose vitamin D levels were below 20 ng\/ml (50 nmol\/L) compared to those whose levels were at least 20 ng\/ml (P=.02).    Click to Enlarge &amp; Print COVID-19 Severity Risk Risk of severe COVID-19, defined as the need for intensive care and\/or mechanical ventilation, was 160% higher among those with vitamin D levels below 20 ng\/ml (50 nmol\/L) compared to those whose levels were 20 ng\/ml or higher (P&lt;.01).    Click to Enlarge &amp; Print COVID-19 Death Risk Risk of death due to COVID-19 was 22% higher among those with vitamin D levels below 20 ng\/ml (50 nmol\/L) compared to those whose levels were 20 ng\/ml or higher (P&lt;.01).    Click to Enlarge &amp; Print Vitamin D Supplementation and Risk Vitamin D supplementation of various doses reduced the risk of severe COVID-19 disease by 73% (P&lt;.01) and death by 59% (P=.01). Overall Risk of Severe COVID-19 Very Strongly Associated with Vitamin D The combined set of studies that evaluated COVID-19 severity and vitamin D levels can be seen on the forest plot below.    Click to Enlarge &amp; Print  The purpose of a\u00a0forest plot\u00a0is to help you \u201csee the forest among the trees.\u201d They are used often in a meta-analysis, such as this paper, to summarize the results from individual studies. The idea is to compare two categories for one outcome, in this case, highest vs. lowest vitamin D levels for risk of severe COVID-19 disease. The vertical line, labeled as 1, indicates that the risk of severe COVID-19 is the same for both categories. A relative risk less than 1.0 indicates lower risk with higher vitamin D levels and a relative risk above 1.0 indicates higher risk with lower vitamin D levels. In this plot, almost all of the points are to the right, showing a higher risk of severe COVID-19 disease with lower vitamin D levels. Each point also has an associated bar with it \u2013 this represents the 95% confidence interval used in statistics. In reality it means the point could be anywhere along that line. Finally the big diamond at the bottom is the aggregate risk for all of the studies, and represents the 160% increased risk of severe COVID-19 disease among those with lower vitamin D levels demonstrated by this review. In Conclusion Vitamin D plays essential anti-inflammatory and antiviral roles within the body, and a deficiency can lead to decreased immunity and a lacking immune response. This review solidifies the already demonstrated importance of maintaining healthy vitamin D levels, especially for immune response against COVID-19. The\u00a0GrassrootsHealth panel of international vitamin D scientists\u00a0recommends a vitamin D level between 40-60 ng\/ml (100-150 nmol\/L) \u2013\u00a0what is your vitamin D level?  Click here for more from GrassrootsHealth.  &nbsp;  SmartTan.com news articles regularly report medical and scientific information to keep you abreast of current events related to UV light. This information is not intended to be used by any party to make unwarranted health claims to promote sunbed usage. Indoor tanning businesses are obligated to communicate a fair and balanced message to all clients about your products and services including the potential risks associated with indoor tanning. Contact your Smart Tan representative to find out more about what you can and can\u2019t say in your tanning salon business.  \u00a9 2021 International Smart Tan Network. All rights reserved.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/news.smarttan.com\/index.php\/demonstrated-effectiveness-of-vitamin-d-for-covid-19\/","og_locale":"en_US","og_type":"article","og_title":"Demonstrated Effectiveness of Vitamin D for COVID-19 - Smart Tan News","og_description":"From GrassrootsHealth Meta-analysis of 43 studies supports therapeutic and prognostic role of vitamin D for COVID-19 infections An extensive amount of research has now been published on the relationship between\u00a0vitamin D and immune health, from demonstrating the physiological roles of vitamin D within the immune cells, tissues, and organs, to the observed relationship between vitamin D levels and disease outcomes. It is factual knowledge that the body needs a supply of vitamin D in order to effectively fight off certain infections and diseases. A new meta-analysis shows that this seems to be especially true in the case of COVID-19. Meta-analysis of Vitamin D\u2019s Association with COVID-19 Disease and Outcomes A\u00a0review by Petrelli et al.\u00a0included 43 studies with data from a total of 612,601 COVID-19 patients that had been published from the beginning of the COVID-19 pandemic through January 31, 2021. All papers included data on vitamin D and COVID-19 disease risk, severity, and\/or mortality. The primary outcome of the review was to see if there was a difference between COVID-19 infection risk among individuals with or without vitamin D deficiency (defined as vitamin D levels below 20 ng\/ml or 50 nmol\/L). Secondary outcomes of the review were severity and death due to COVID-19, as well as the therapeutic effect of vitamin D supplementation. COVID-19 Infection Risk Risk of COVID-19 infection was 50% higher among those whose vitamin D levels were below 20 ng\/ml (50 nmol\/L) compared to those whose levels were at least 20 ng\/ml (P=.02).    Click to Enlarge &amp; Print COVID-19 Severity Risk Risk of severe COVID-19, defined as the need for intensive care and\/or mechanical ventilation, was 160% higher among those with vitamin D levels below 20 ng\/ml (50 nmol\/L) compared to those whose levels were 20 ng\/ml or higher (P&lt;.01).    Click to Enlarge &amp; Print COVID-19 Death Risk Risk of death due to COVID-19 was 22% higher among those with vitamin D levels below 20 ng\/ml (50 nmol\/L) compared to those whose levels were 20 ng\/ml or higher (P&lt;.01).    Click to Enlarge &amp; Print Vitamin D Supplementation and Risk Vitamin D supplementation of various doses reduced the risk of severe COVID-19 disease by 73% (P&lt;.01) and death by 59% (P=.01). Overall Risk of Severe COVID-19 Very Strongly Associated with Vitamin D The combined set of studies that evaluated COVID-19 severity and vitamin D levels can be seen on the forest plot below.    Click to Enlarge &amp; Print  The purpose of a\u00a0forest plot\u00a0is to help you \u201csee the forest among the trees.\u201d They are used often in a meta-analysis, such as this paper, to summarize the results from individual studies. The idea is to compare two categories for one outcome, in this case, highest vs. lowest vitamin D levels for risk of severe COVID-19 disease. The vertical line, labeled as 1, indicates that the risk of severe COVID-19 is the same for both categories. A relative risk less than 1.0 indicates lower risk with higher vitamin D levels and a relative risk above 1.0 indicates higher risk with lower vitamin D levels. In this plot, almost all of the points are to the right, showing a higher risk of severe COVID-19 disease with lower vitamin D levels. Each point also has an associated bar with it \u2013 this represents the 95% confidence interval used in statistics. In reality it means the point could be anywhere along that line. Finally the big diamond at the bottom is the aggregate risk for all of the studies, and represents the 160% increased risk of severe COVID-19 disease among those with lower vitamin D levels demonstrated by this review. In Conclusion Vitamin D plays essential anti-inflammatory and antiviral roles within the body, and a deficiency can lead to decreased immunity and a lacking immune response. This review solidifies the already demonstrated importance of maintaining healthy vitamin D levels, especially for immune response against COVID-19. The\u00a0GrassrootsHealth panel of international vitamin D scientists\u00a0recommends a vitamin D level between 40-60 ng\/ml (100-150 nmol\/L) \u2013\u00a0what is your vitamin D level?  Click here for more from GrassrootsHealth.  &nbsp;  SmartTan.com news articles regularly report medical and scientific information to keep you abreast of current events related to UV light. This information is not intended to be used by any party to make unwarranted health claims to promote sunbed usage. Indoor tanning businesses are obligated to communicate a fair and balanced message to all clients about your products and services including the potential risks associated with indoor tanning. Contact your Smart Tan representative to find out more about what you can and can\u2019t say in your tanning salon business.  \u00a9 2021 International Smart Tan Network. All rights reserved.","og_url":"https:\/\/news.smarttan.com\/index.php\/demonstrated-effectiveness-of-vitamin-d-for-covid-19\/","og_site_name":"Smart Tan News","article_publisher":"https:\/\/www.facebook.com\/SmartTan","article_published_time":"2021-04-07T12:42:26+00:00","og_image":[{"width":1360,"height":1000,"url":"https:\/\/news.smarttan.com\/wp-content\/uploads\/2021\/04\/Sun-Covid-4-7-21.jpg","type":"image\/jpeg"}],"author":"smarttannews","twitter_card":"summary_large_image","twitter_creator":"@SmartTan","twitter_site":"@SmartTan","twitter_misc":{"Written by":"smarttannews","Est. reading time":"4 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/news.smarttan.com\/index.php\/demonstrated-effectiveness-of-vitamin-d-for-covid-19\/#article","isPartOf":{"@id":"https:\/\/news.smarttan.com\/index.php\/demonstrated-effectiveness-of-vitamin-d-for-covid-19\/"},"author":{"name":"smarttannews","@id":"https:\/\/news.smarttan.com\/#\/schema\/person\/722dc7049af55e0ed743d67ce9ed4819"},"headline":"Demonstrated Effectiveness of Vitamin D for COVID-19","datePublished":"2021-04-07T12:42:26+00:00","mainEntityOfPage":{"@id":"https:\/\/news.smarttan.com\/index.php\/demonstrated-effectiveness-of-vitamin-d-for-covid-19\/"},"wordCount":775,"publisher":{"@id":"https:\/\/news.smarttan.com\/#organization"},"image":{"@id":"https:\/\/news.smarttan.com\/index.php\/demonstrated-effectiveness-of-vitamin-d-for-covid-19\/#primaryimage"},"thumbnailUrl":"https:\/\/news.smarttan.com\/wp-content\/uploads\/2021\/04\/Sun-Covid-4-7-21.jpg","articleSection":["News"],"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/news.smarttan.com\/index.php\/demonstrated-effectiveness-of-vitamin-d-for-covid-19\/","url":"https:\/\/news.smarttan.com\/index.php\/demonstrated-effectiveness-of-vitamin-d-for-covid-19\/","name":"Demonstrated Effectiveness of Vitamin D for COVID-19 - Smart Tan News","isPartOf":{"@id":"https:\/\/news.smarttan.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/news.smarttan.com\/index.php\/demonstrated-effectiveness-of-vitamin-d-for-covid-19\/#primaryimage"},"image":{"@id":"https:\/\/news.smarttan.com\/index.php\/demonstrated-effectiveness-of-vitamin-d-for-covid-19\/#primaryimage"},"thumbnailUrl":"https:\/\/news.smarttan.com\/wp-content\/uploads\/2021\/04\/Sun-Covid-4-7-21.jpg","datePublished":"2021-04-07T12:42:26+00:00","description":"From GrassrootsHealth Meta-analysis of 43 studies supports therapeutic and prognostic role of vitamin D for COVID-19 infections An extensive amount of research has now been published on the relationship between\u00a0vitamin D and immune health, from demonstrating the physiological roles of vitamin D within the immune cells, tissues, and organs, to the observed relationship between vitamin D levels and disease outcomes. It is factual knowledge that the body needs a supply of vitamin D in order to effectively fight off certain infections and diseases. A new meta-analysis shows that this seems to be especially true in the case of COVID-19. Meta-analysis of Vitamin D\u2019s Association with COVID-19 Disease and Outcomes A\u00a0review by Petrelli et al.\u00a0included 43 studies with data from a total of 612,601 COVID-19 patients that had been published from the beginning of the COVID-19 pandemic through January 31, 2021. All papers included data on vitamin D and COVID-19 disease risk, severity, and\/or mortality. The primary outcome of the review was to see if there was a difference between COVID-19 infection risk among individuals with or without vitamin D deficiency (defined as vitamin D levels below 20 ng\/ml or 50 nmol\/L). Secondary outcomes of the review were severity and death due to COVID-19, as well as the therapeutic effect of vitamin D supplementation. COVID-19 Infection Risk Risk of COVID-19 infection was 50% higher among those whose vitamin D levels were below 20 ng\/ml (50 nmol\/L) compared to those whose levels were at least 20 ng\/ml (P=.02). Click to Enlarge &amp; Print COVID-19 Severity Risk Risk of severe COVID-19, defined as the need for intensive care and\/or mechanical ventilation, was 160% higher among those with vitamin D levels below 20 ng\/ml (50 nmol\/L) compared to those whose levels were 20 ng\/ml or higher (P&lt;.01). Click to Enlarge &amp; Print COVID-19 Death Risk Risk of death due to COVID-19 was 22% higher among those with vitamin D levels below 20 ng\/ml (50 nmol\/L) compared to those whose levels were 20 ng\/ml or higher (P&lt;.01). Click to Enlarge &amp; Print Vitamin D Supplementation and Risk Vitamin D supplementation of various doses reduced the risk of severe COVID-19 disease by 73% (P&lt;.01) and death by 59% (P=.01). Overall Risk of Severe COVID-19 Very Strongly Associated with Vitamin D The combined set of studies that evaluated COVID-19 severity and vitamin D levels can be seen on the forest plot below. Click to Enlarge &amp; Print The purpose of a\u00a0forest plot\u00a0is to help you \u201csee the forest among the trees.\u201d They are used often in a meta-analysis, such as this paper, to summarize the results from individual studies. The idea is to compare two categories for one outcome, in this case, highest vs. lowest vitamin D levels for risk of severe COVID-19 disease. The vertical line, labeled as 1, indicates that the risk of severe COVID-19 is the same for both categories. A relative risk less than 1.0 indicates lower risk with higher vitamin D levels and a relative risk above 1.0 indicates higher risk with lower vitamin D levels. In this plot, almost all of the points are to the right, showing a higher risk of severe COVID-19 disease with lower vitamin D levels. Each point also has an associated bar with it \u2013 this represents the 95% confidence interval used in statistics. In reality it means the point could be anywhere along that line. Finally the big diamond at the bottom is the aggregate risk for all of the studies, and represents the 160% increased risk of severe COVID-19 disease among those with lower vitamin D levels demonstrated by this review. In Conclusion Vitamin D plays essential anti-inflammatory and antiviral roles within the body, and a deficiency can lead to decreased immunity and a lacking immune response. This review solidifies the already demonstrated importance of maintaining healthy vitamin D levels, especially for immune response against COVID-19. The\u00a0GrassrootsHealth panel of international vitamin D scientists\u00a0recommends a vitamin D level between 40-60 ng\/ml (100-150 nmol\/L) \u2013\u00a0what is your vitamin D level? Click here for more from GrassrootsHealth. &nbsp; SmartTan.com news articles regularly report medical and scientific information to keep you abreast of current events related to UV light. This information is not intended to be used by any party to make unwarranted health claims to promote sunbed usage. Indoor tanning businesses are obligated to communicate a fair and balanced message to all clients about your products and services including the potential risks associated with indoor tanning. Contact your Smart Tan representative to find out more about what you can and can\u2019t say in your tanning salon business. \u00a9 2021 International Smart Tan Network. All rights reserved.","breadcrumb":{"@id":"https:\/\/news.smarttan.com\/index.php\/demonstrated-effectiveness-of-vitamin-d-for-covid-19\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/news.smarttan.com\/index.php\/demonstrated-effectiveness-of-vitamin-d-for-covid-19\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/news.smarttan.com\/index.php\/demonstrated-effectiveness-of-vitamin-d-for-covid-19\/#primaryimage","url":"https:\/\/news.smarttan.com\/wp-content\/uploads\/2021\/04\/Sun-Covid-4-7-21.jpg","contentUrl":"https:\/\/news.smarttan.com\/wp-content\/uploads\/2021\/04\/Sun-Covid-4-7-21.jpg","width":1360,"height":1000,"caption":"Happy fun man open hand arms take off face mask, put back. Covid 19 sick stop, lockdown end after ill. 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