Increasing Vitamin D levels could possibly improve clinical outcomes of those who become infected with COVID-19, or prevent infection.
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First Data to be Published on COVID-19 Severity and Vitamin D Levels

In several posts over recent months, we have discussed the many ways that optimal vitamin D levels are necessary to initiate and maintain a healthy immune response, especially within the respiratory system.  Our paper, Evidence that Vitamin D Supplementation Could Reduce Risk of Influenza  and COVID-19 Infections and Deaths, was published last month, detailing the current research in support of higher vitamin D serum levels and decreased incidence of viral-induced respiratory diseases.  

In a preprint letter (not yet peer reviewed), data is presented from 212 COVID-19 patients who had been hospitalized in three separate hospitals in Southern Asia. This is the first published data comparing the severity of symptoms to vitamin D serum levels.  

Cases were all confirmed for COVID-19 and were grouped as follows:
  1. Mild - presenting with mild clinical symptoms and no diagnosis of pneumonia
  2. Ordinary - presenting with fever, respiratory symptoms, and a confirmed diagnosis of pneumonia
  3. Severe - cases with hypoxia and respiratory distress
  4. Critical - cases with respiratory failure requiring intensive care
Vitamin D levels were grouped as follows:
  1. Normal - vitamin D level of 30 ng/ml (75 nmol/L) or above
  2. Insufficient - vitamin D level between 21-29 ng/ml (51-74 nmol/L)
  3. Deficient - vitamin D level below 20 ng/ml (50 nmol/L)
What were the findings of this study?

The average vitamin D level of all 212 cases was 24 ng/ml (59 nmol/L).   
Of all COVID-19 cases 
  • 49 (23%) cases were categorized as mild, with an average vitamin D level of 31 ng/ml (78 nmol/L)
  • 59 (28%) were categorized as ordinary, with an average vitamin D level of 27 ng/ml (68 nmol/L)
  • 56 (26%) were categorized as severe, with an average vitamin D level of 21 ng/ml (53 nmol/L)
  • 48 (23%) were critical, with an average vitamin D level of 17 ng/ml (43 nmol/L)
  • 86% of all cases among patients with normal vitamin D levels were mild, while 73% of cases among patients with vitamin D deficiency were severe or critical
  • For each standard deviation increase in vitamin D level, the odds of having a mild case compared to a severe case were 7.94 times more, and the odds of having a mild case compared to a critical case were 19.61 times more
  • All outcomes were statistically significant
The author concludes, "This means that serum (OH)D level in the body could account for the clinical outcomes of the patients infected with Covid-2019.  An increase in serum (OH)D level in the body could either improve clinical outcomes or mitigate worst (severe to critical) outcomes.  On the other hand, a decrease in serum (OH)D level in the body could worsen clinical outcomes of Covid-2019."
GrassrootsHealth is prepared to move forward by using science to drive global action, with using either clinical trials with our key researchers or by doing community Field Trials with individuals or other organizations. Please let us know if you are interested and how we can quickly setup your projects. 
Could You or Someone You Know Need More
Vitamin D?
We're in a time of great crisis that could be greatly affected by making sure you and everyone you know has a serum level of at least 40 ng/ml.  Help us help you.

Do you know what your vitamin D level is? Be sure to test today to find out, and take steps to keep it within a target of 40-60 ng/ml or 100-150 nmol/L! Give your immune system the nutrients it needs to support a healthy you and protect yourself from unnecessary diseases.

Please don't wait! Your health depends on it.

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Link to our page here for a detailed explanation of the importance of vitamin D:


Nutrient Deficiencies Are a 
Major Health Concern with Most... However

is 44 ng/ml!

IN SAN DIEGO (where GrassrootsHealth is based) 
is 54 ng/ml!
Compared to the average level of 28 ng/ml in the US, this is FANTASTIC!

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April Immune System Boost

Is your immune system strong enough to help you stay healthy?  Look at the chart below -- what is your level? 

Make sure you know your vitamin D level, and take steps to keep it within a target of 40-60 ng/ml or 100-150 nmol/L!  Through GrassrootsHealth Nutrient Research Institute, you can also test your essential elements magnesium, copper, zinc and selenium, toxins such as lead, mercury and cadmium, as well as your omega-3 levels, inflammation levels and thyroid stimulating hormone (TSH) level.  Find out your levels today !  Log on to the test selection page ( click the link below ) to get your tests and see for yourself if your levels can be improved.
Make sure you track your results before and after, about every 6 months!

How can I track my nutrient intake and levels over time?
To help you track your supplement use and nutrient levels, GrassrootsHealth has created the Personal Health Nutrient Decision System called 
For each specific supplement, you can track what days you take it, how much, and many other details. 

This will help you know your true supplemental intake and what patterns of use work for you to reach and maintain optimum nutrient levels.
Check it out today!   Follow these simple steps after logging in to your account  to view the different charts available to you :

Please share this information and link with your friends, family who could be at risk.  Getting all your loved ones up to the healthy levels of 40-60 ng/ml (100-150 nmol/L) of vitamin D and to an Omega-3 Index level of at least 8% could lead to a decreased risk of depression anytime, AND, more happiness!

Have a beautiful day.

Carole Baggerly
Director, GrassrootsHealth
A Public Health Promotion & Research Organization
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