A new study indicates that the vitamin D has a protective effect against covid-19, a disease caused by the new coronavirus.
Researchers at the Boston University School of Medicine, in the United States, analyzed blood samples from 235 patients who were admitted to a hospital with covid-19.
The research indicated that patients who had at least 30 ng / mL of calcidiol (or 25-hydroxy-vitamin D) had a significant reduction in the risk of becoming unconscious, having difficulty breathing or dying.
According to the researchers, blood samples from patients also indicated fewer inflammatory markers and higher levels of lymphocytes, cells of the immune system.
Covid-19 has more severely affected black people than white people, and new studies on vitamin D may indicate the reason – in addition to socioeconomic reasons. People with black skin need more time of exposure to sunlight for vitamin D to be created by the human body.
The study also found that patients over 40 who had enough vitamin D had 51.5% less risk of death from covid-19. The study was published in the scientific journal PLOS ONE.
In addition to being found in supplements, vitamin D is also found in foods such as fish, red meat and eggs.
In another study, published in the scientific network JAMA Open Network, 21.6% of people who had vitamin D deficiency had covid-19, while 12.2% of people with healthy levels of vitamin D were diagnosed with the disease. The analyzed data were from 489 patients and were collected in 2019.
There are still more studies of higher scientific quality to prove, once and for all, the correlation between vitamin D and covid-19. But the data already indicate that it exists, yes.
It is worth noting that there is no evidence that levels above average have any efficacy against the new coronavirus. Therefore, those who already have healthy levels of the vitamin do not need to take supplements to protect themselves. Taking blood tests ordered by a doctor is still the best way to know whether or not you have the right amount of vitamin D in your body.