Vitamin D can protect us from serious forms of Covid-19 ? According to a us study, in any case, people deficient are two times more likely than others to develop an inflammatory reaction which is important if they are infected by the new coronavirus.
The research around the novel coronavirus multiply and their results begin to fall off. According to a study conducted by researchers from the university of Northwester (United States), the vitamin D may have a protective effect against forms of serious Covid-19. Patients who have contracted the disease by being in deficit of this vitamin were in fact two times more likely than others to develop a substantial inflammatory response.
Following this study, the national Academy of medicine has issued its opinion, in a communiqué issued on 23 may. She explains that vitamin D modulates the functioning of the immune system by stimulating macrophages and dendritic cells. It also plays a role in the regulation and suppression of the inflammatory response cytokinique to the origin of the acute respiratory distress syndrome, which characterizes the severe and often lethal Covid-19.
However, grade the Academy of medicine, vitamin D may not ” be considered as a treatment, preventive or cure of the infection due to the novel coronavirus.
In its publication, it recommends, however, to quickly determine the levels of vitamin D in serum (that is to say, the 25 OHD) in individuals older than 60 years with Covid-19, and to administer, in cases of deficiency, a loading dose of 50,000 to 100,000 IU, which could help limit respiratory complications ” and, to make a vitamin D supplementation of 800 to 1000 IU/day in people aged less than 60 years from the confirmation of the diagnosis “.
How to avoid vitamin D deficiency ?
Vitamin D can be synthesized by the body by exposure to the sun of the arms, hands and face to sunlight for at least 15 minutes per day. Intakes of vitamin D are also through food : fatty fish (herring, trout, mackerel), dark chocolate, whole cow’s milk, eggs are some of the foods richest in vitamin D.
People whose diet is not sufficiently varied, and who cannot expose themselves enough to the sun, but also people over the age of 60 may have an interest to supplement vitamin D, but they must first discuss this with their doctor who will prescribe the dose and the product best suited to their needs. An overdose of vitamin D can cause hypercalcemia which would weaken the bones and have consequences for cardiac and renal. ANSES pointed out in a press release published on 17 April.