Useful for bone health, vitamin D is in fact a hormone synthesized by the body thanks to sunlight. It is also found in certain foods such as eggs or oily fish. It is used to ensure the proper functioning of the immune system.

Certain populations (such as people in nursing homes) are at risk of deficiency, as is a good part of the French population in winter, hence the interest in prescribing “supplements” in vitamin D in medicinal form, for example. example for babies or for the elderly.

Preventive treatment for Covid-19

Often promoted for its real or supposed benefits, vitamin D has been regularly talked about since the start of the pandemic. Already prescribed to many patients and often perceived as harmless, vitamin D could, according to some experts, help prevent Covid-19 infections.

At the end of January, a forum of doctors called “to supplement the entire French population with vitamin D”, because that “could help reduce infection with Sars-CoV-2 as well as the risk of severe forms of Covid-19, intensive care and death”.

Be careful with food supplements

But these announcements had an unexpected effect: cases of vitamin D overdose have recently been reported in young children, following the intake of food supplements enriched with vitamin D. The Lille University Hospital has reported several cases requiring hospitalization in infants who were healthy before taking these supplements.

Vitamin C overdose is manifested by an excessive level of calcium in the blood, which can have serious consequences, including kidney failure. To prevent this risk, the health authority recommends that health professionals and parents favor drugs such as Adrigyl, Deltius or ZymaD rather than food supplements. Another precaution: do not multiply the supplements and limit the quantities administered.

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