Covid-19: vitamin D, an ally against the Coronavirus?

By Caroline J., Rizhlaine F. Posted on November 13, 2020 at 10:28 am Updated November 13, 2020 at 10:29 am

Vitamin D is of interest to more and more researchers. Effective against certain respiratory diseases, would it also be effective against Covid-19? Would vitamin D help cure the virus and prevent the risk of contamination? Various studies are currently being carried out around the world.

With the onset of winter, many specialists recommend a vitamin D intake in order to face this harsh time of year. But the vitamin D would it also be effective against the Coronavirus? For now, no formal study has proven the usefulness of this vitamin in the face of Covid-19. But researchers are increasingly interested in it. Thus, in England, a study was recently launched to verify the effectiveness of vitamin D facing the virus. In addition, a number of studies have shown the presence of vitamin D deficiency in patients with severe forms of the Coronavirus. According to a Spanish study, published in the Journal of clinical endocrynology and metabolism, out of more than 230 hospitalized patients, nearly 80% of them presented a deficiency, against 47% of the general population.

A clinical trial on the subject was also conducted in Maine-et-Loire. This study, led by the Pr Cédric Annweiler, head of the geriatrics department at the Angers University Hospital Center, focused on observing seventy-seven patients, all positive for Covid-19 and over the age of 65. The idea? Train three groups of patients receiving treatment based on vitamin D at two distinct times: one before the diagnosis is made and the other just after confirmation of the disease. The last group received nothing. ” A posteriori, we noted that the survival rate of people who had received long-term vitamin D was much better. », Indicates the Pr Cédric Annweiler in the columns of West France.

A new study, still carried out by the Pr Cédric Annweiler, has been in progress since last April. Goal ? To assess the effectiveness of vitamin D as a treatment to help cure Covid-19. The results of this clinical trial are expected to be released in the coming weeks.

In Norway, researchers are looking for their part on the effects of cod liver oil, particularly rich in vitamin D, as a preventive remedy for covid 19 and the risks of contracting a severe form of the disease. This is one of the most important clinical studies to have been organized in the country: theOslo University Hospital is looking for no less than 70,000 volunteers for this study.

Then vitamin D is she a strong ally against the Coronavirus? One thing is certain, it helps us fix calcium in the bones. In addition, its effectiveness against respiratory infections, such as the flu, or the common cold, has already been proven.

Therefore, theConsidered, the National Food Safety Agency, recently reiterated the importance of vitamin D for our body and especially for the strengthening of our immune system.

« In the current context of the Covid-19 epidemic, the immune system can be particularly stressed »Indicates ANSES sure his website. But then, how to be sure to have his daily dose of vitamin D ?

If possible, try to get in the sun for 15 to 20 minutes From your garden, patio, balcony, or window, theConsidered affirms that an exposure of a quarter of an hour per day, even of the hands, forearms and face, ensures “ the daily intake of vitamin D necessary to meet the needs of a healthy adult ».

And if the good weather is not the game, don’t forget that several food gras are there to provide your daily dose of vitamin D to your body. So, ANSES detailed the food list rich in vitamin D :

  • Oily fish: herring, sardines, salmon and mackerel
  • Organ meats (especially liver)
  • The egg yolk
  • Dairy products fortified with vitamin D
  • Butter and margarines
  • Cheese
  • Meat

The National Food Safety Agency specifies that, ” even outside the confinement period, it is important to consume these foods regularly in order to ensure the body has a sufficient intake. »

Same opinion for theNational Academy of Medicine. In a press release published on May 22, the Academy explained: “Vitamin D cannot be considered as a preventive or curative treatment for infection due to SARS-CoV-2; but by mitigating the inflammatory storm and its consequences, it could be considered as an adjunct to any form of therapy“. Also, according to theNOTE, the vitamin D modulates the immune system “by stimulation of macrophages and dendritic cells” and so “plays a role in the regulation and suppression of the inflammatory cytokine response causing the acute respiratory distress syndrome which characterizes severe and often lethal forms of Covid-19“.

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