Vitamin D Deficiency Increases COVID-19 Risk? A disturbing study

Scientists have found another link between vitamin D and COVID-19. Scientists have found that a sufficient amount of it in the body reduces the risk of severe disease and death. Recent findings suggest that vitamin D deficiency may increase the risk of coronavirus infection. This is the conclusion of a study by British scientists at the University of Birmingham.

1. University of Birmingham researchers: Lower vitamin D levels may increase COVID-19 susceptibility
2. A link between vitamin D levels and COVID-19 risk has already been suggested by previous studies
3. Belgian scholars: Vitamin D supplementation could be an “inexpensive mitigation strategy” for coronavirus
4. Up to a billion people worldwide may have a vitamin D deficiency. In Poland, 90 percent. of us may have this problem
5. For more up-to-date information on the coronavirus epidemic, visit the TvoiLokony home page

Vitamin D affects the entire body, including the state of our immunity. Scientists are finding more and more evidence that it may protect against the SARS-CoV-2 coronavirus. However, this also suggests that a deficiency in the “sun vitamin” increases the risk of infection. The conclusion is worrying – according to statistics, vitamin D deficiency may have up to a billion people around the world. In Poland, 90 percent. of us may have this problem.

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Vitamin D deficiency can increase the risk of coronavirus infection

A study of the link between vitamin D and coronavirus infection, published in October, exacerbated anxiety.

It was carried out by researchers from the University of Birmingham among employees of the National Health Service (NHS – the British equivalent of the National Health Fund) working at University Hospitals Birmingham NHS Foundation Trust. It is one of the UK hospitals where the most COVID-19 patients have been admitted.

The researchers analyzed blood samples from 392 employees of the facility, including doctors, nurses, physiotherapists, laboratory staff, secretaries and radiologists. They were collected in May, at the end of the first “outbreak” of the epidemic.

The blood was tested for the presence of SARS-CoV-2 antibodies – proteins that indicate that the person had built up an immune response during a previous infection. Vitamin D levels were also checked. What turned out?

Vitamin D deficiency was more common in BAME people (black, Asian and other ethnic minority people) and among physicians holding “junior assistant” positions. Additionally, a lower level of this relationship was observed in men, younger people and those with a higher BMI index.

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Among people with a deficiency of the “vitamin of the sun”, 72 percent. tested positive for the presence of coronavirus antibodies, which indicates a previous infection. Among people who lacked vitamin D, such a result was confirmed in 51 percent.

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The study also found that hospital workers diagnosed with vitamin D deficiency reported pain symptoms more frequently. Lower vitamin D levels were also observed among people reporting fever (not those who complained of coughing or shortness of breath).

— Our study found that healthcare workers who are deficient in vitamin D have an increased risk of becoming infected with COVID-19 – summarizes prof. David Thickett from the University of Birmingham. The analyzes complement the worldwide evidence that people with severe COVID-19 are more vitamin D deficient than people who are mildly infected.

Vitamin D and COVID-19 Risk – Previous Studies Confirm

Previous studies have already suggested a link between vitamin D levels and the risk of COVID-19.

One of them was a study by specialists from the University of Chicago Medicine (USA) announced in early September. They were conducted with the participation of almost 500 people. It allowed to establish that low vitamin D levels are conducive to coronavirus infection. – Vitamin D is important for the functioning of the immune system and it has already been shown that supplements containing it reduce the risk of viral respiratory infections. Our statistical analysis suggests that this may also be true for COVID-19, explained Prof. David Meltzer, co-author of the publication.

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Another study was conducted by researchers at the Boston University School of Medicine. Researchers measured the blood levels of vitamin D in the blood of 235 patients hospitalized due to coronavirus infection. They found that patients who had at least 30 ng / mL of 25-hydroxyvitamin D (this substance is measured to check for vitamin D levels in the blood) experienced much less severe disease, including loss of consciousness and hypoxia. They also died less frequently.

“We have direct evidence that providing adequate vitamin D levels can reduce complications, including cytokine storms (too much protein being released into the blood too quickly) and lower the risk of death from COVID-19,” emphasized author of the finding, Dr. Michael F. Holick. What’s more, in his opinion, the vitamin protects against serious consequences not only in the case of coronavirus infection, but also other viruses that cause diseases of the upper respiratory tract, including the flu.

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Supplements with Vitamin D for Coronavirus?

In connection with the findings of scientists, there were voices in the UK about the need for cheap and safe supplementation with vitamin D. According to estimates, every fifth Briton may have too little vitamin D in the body (among the BAME community, the percentage may be as high as 90%, and these people are known to be at greater risk of COVID-19, although it has not been established whether this is related to the “vitamin of the sun”).

1. Vitamin D excess or deficiency can negatively affect the body’s immunity

– Our research, in conjunction with the existing evidence, shows that vitamin D supplementation in people at risk of deficiency of this compound or in whom deficiency has already been demonstrated, may be a way to potentially mitigate the impact of COVID-19 – emphasizes Prof. Thickett.

Researchers at Vrije Universiteit Brussel (a Belgian Dutch-speaking university in Brussels) believe the same. Giving vitamin D supplements could, in their opinion, be an “inexpensive mitigation strategy” for the coronavirus. According to a study in June, more men were admitted to hospital because of COVID-19 who were deficient in the ‘sun vitamin’.

However, there are no WHO guidelines that say that vitamin D supplementation is a way to reduce the risk of SARS-CoV-2 infection.

How to make up for vitamin D deficiency? This compound is synthesized in our skin under the influence of solar radiation (therefore it is said that the best source of vitamin D is the sun). Unfortunately, it is difficult to obtain this ingredient in this way in Poland. What about your diet? Yes, some products contain vitamin D, but in too small amounts to be able to provide the required daily dose with food. The best solution is supplementation, but it’s better not to do it on your own. It is best to contact your family doctor, who will tell you which preparation to choose. Before that, you may need to do blood tests to determine if you are suffering from a vitamin D deficiency.

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