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Can Vitamin D Protect You Against Covid-19? A Myth or a Fact? 

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From the beginning of the COVID-19 pandemic, researchers have been investigating why some people were better protected from infection than others. After a while, many of them began to think that vitamin D has a possible role to play in it. You might have heard about it a lot too. In today’s blog, let’s explore how much truth it holds. 

Vitamin D is an essential nutrient that your body requires to build and maintain strong bones, among other things. The main source is sunlight; your skin absorbs the sun’s ultraviolet rays and converts them into vitamin D.

Many people, however, are deficient or do not get enough. This is especially true if you’re older, don’t eat healthily, or have darker skin. And if infected, those low levels may increase your risk of severe COVID-19. Here’s what you should know.

The Link Between Covid 19 and Vitamin D 

While vitamin D improves your immune system and reduces inflammation, experts say more research on its antiviral properties is needed.

However, three different scenarios need your attention right now:

  • According to one study, people with low vitamin D levels had a 7.2% chance of testing positive for COVID-19. Another study discovered that high levels of vitamin D may reduce your risk of severe COVID-19 infection.
  • However, another study found that higher vitamin D levels do not reduce the risk of viral infection, hospitalization, or the severity of COVID-19. The study included over a million people of European ancestry from 11 different countries. They also included people who have a gene mutation that allows them to have naturally high vitamin D levels.
  • A third study discovered that giving vitamin D to hospitalized patients with moderate to severe COVID-19 did not improve their condition or shorten their stay.

There is insufficient evidence to recommend vitamin D supplementation to prevent or treat COVID-19 infection. Vitamin D, on the other hand, has a direct impact on increased immunity.

How Does Vitamin D Influence Immune Function?

  • Vitamin D boosts antiviral defenses against other respiratory viruses, such as influenza A virus and rhinovirus, on a mechanistic level.
  • Vitamin D is required for proper immune system function, which is your body’s first line of defense against infection and disease.
  • This vitamin is essential for promoting immune response. It has anti-inflammatory and immunoregulatory properties and is essential for immune system defense activation.
  • Vitamin D has been shown to improve the function of immune cells such as T cells and macrophages, which protect your body from pathogens.
  • Low vitamin D levels have been linked to an increased susceptibility to infection, disease, and immune-related disorders.
  • Furthermore, a lack of vitamin D has been linked to decreased lung function, which may impair your body’s ability to fight respiratory infections.

Can Vitamin D Supplementation Protect Against Covid-19?

There is currently no cure or treatment for COVID-19, and few studies have looked into the effect of vitamin D supplements or deficiency on the risk of contracting the new coronavirus, SARS-CoV-2.

A recent study found that a blood level of 25-hydroxyvitamin D of at least 30 ng/mL seemed to help reduce the likelihood of adverse clinical outcomes and death in COVID-19 hospitalized patients.

The hospital records of 235 COVID-19 patients were examined.

When compared to vitamin D-deficient patients, patients over the age of 40 who had adequate levels of vitamin D were 51.5% less likely to have adverse outcomes such as becoming unconscious, hypoxia, and death. 

The Bottom Line

Vitamin D has many important functions in your body, including promoting the health of your immune system.

According to scientific evidence, supplementing with vitamin D may protect against respiratory infections, especially in those who are vitamin D deficient.

According to new research, adequate vitamin D levels may help people with COVID-19 avoid negative outcomes.

So, there’s no single answer whether taking vitamin D supplements lowers your risk of developing COVID-19 as a result of contracting the coronavirus. Consult your doctor about taking vitamin D supplements to boost your immune system.

Looking for a rapid COVID-19 test to check whether you are infected or not? Please contact the healthcare provider at Affordable Rapid Testing. Make an online appointment or simply stop by any day during regular business hours for a safe, contactless check-in and payment experience. To learn more, call 480-923-5232.

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