Scientists have found that about 80% of Israelis are generally deficient in vitamin D, so they often take vitamin D supplements.

epidemic, many experts have suggested that vitamin D supplementation is helpful in fighting the new crown epidemic. Especially, a new study published in Israel in February found that it is called the strongest evidence that vitamin d has anti-new crown disease.

Comparison chart

One of the main data conveyed by the Israeli study is the comparison of the level of vitamin D in the body before COVID-19 infection with the severity after infection with COVID-19.

The function of vitamin D in the traditional sense is to promote the absorption of intestinal calcium, maintain the normal development of bones, ensure the normal deposition and calcification of calcium in bones, prevent the occurrence of rickets in children, and prevent osteoporosis, osteomalacia, etc. in the elderly. This is the most familiar function to everyone, so many people pay more attention to supplementing vitamin d.

But vitamin d also has some lesser-known functions, such as enhancing human immunity.

The latest Israeli research found that relevant supporting evidence can be obtained.

Israel They have a general crowd survey. Scientists have found that about 80% of Israelis are generally deficient in vitamin D, so they often take vitamin D supplements.

With the support of the Medical Research Center, they collected data on the vitamin D serum levels of a group of people infected with the new coronavirus for a total of two years before being infected with the virus . Through retrospective analysis, a correlation between the pre-infection vitamin D levels and the severity of their new coronavirus disease can be obtained.

After being infected with the new coronavirus, there are mild and severe symptoms. The vitamin D deficiency of people with severe symptoms is significantly higher than that of people with mild or moderate symptoms. Before severe COVID-19 infection occurs, the vitamin D level is insufficient and deficient. For people with mild or moderate COVID-19 infection, their vitamin D deficiency level before infection only accounted for 34%. This is a very big difference.

comparison chart

We can look at this picture. It is divided into four types according to the level of vitamin d. One is insufficient or less than 20 nanograms per milliliter, 20 to 30 is generally mild deficiency, more than 30 is a normal level, and more than 40 is normal and ideal. You can see the abscissa of the picture, which divides patients into four groups, light, moderately severe or micro-severe. The

coordinate is the level of vitamin D before infection with the new coronavirus. We can see a corresponding relationship with the previous category. It can be seen that the pre-infection vitamin D levels of people with mild COVID-19 are significantly higher than those of patients with moderate or severe symptoms. As the disease progressed, his pre-infectious vitamin d levels fell. Therefore, the correlation analysis shows that there is a significant correlation between the pre-infection vitamin d level and the severity of the disease.

has a consistent trend in different age groups, whether it is 50-65 years old or under 50 years old, there is a consistent trend.

This picture provides further instructions. If the vitamin D level in the body was normal before being infected with COVID-19, for example, greater than 30 or higher, the mortality rate from COVID-19 would be an average level.

This is a very convincing study because he did a very detailed correlation analysis and compared various factors.

So how much vitamin D supplement is needed to be effective?

Before we supplement vitamin d, we all must first check whether our body is deficient in vitamin d. Not everyone needs to supplement vitamin d. If we are not lacking, we don’t need to supplement it. Don’t supplement it blindly.

So we also have to look at who is prone to missing. One is a growing child whose bones develop very quickly, so they are easily missing and usually need to be replaced. In addition, older people and women, especially during menopause, need to supplement.

People often work indoors and seldom bask in the sun, because vitamin D relies on our skin to absorb ultraviolet rays and synthesize natural vitamin D in our body. People who seldom bask in the sun are likely to be deficient.In addition, people with dark skin are also prone to deficiency, because dark skin blocks the UVB component of ultraviolet rays, resulting in insufficient synthesis of vitamin D.

is actually the most natural supplementary method and the best supplementary method. Just get enough sun. When we bask in the sun, we don't just have to bask in it through glass, because windows can block ultraviolet rays. So we have to go outdoors to bask in the sun, for about half an hour at a time, which is enough to supply vitamin D throughout our body. And there is another benefit of naturally sunbathing to supplement vitamin D, it will not exceed the dosage. Because research has found that after spending more than 20 hours in the sun, the vitamin D level in the body will rise to a certain value and it will no longer rise. It has a natural regulating effect.

Nature gives us sunshine and a normal lifestyle. If we have enough outdoor time and enjoy the process of sunshine, our natural vitamin D is enough.