Since this weekend, night falls an hour earlier, the days are less and less sunny.

At the microphone of Europe 1, Doctor Jimmy Mohamed advises to take a vitamin D cure to resist the onset of winter and strengthen his immune system. 

The days are getting shorter, the sunshine time is getting shorter.

Since the change of time this weekend, winter is here and the depression that goes with it too.

This is the perfect time to take a vitamin D cure according to the doctor and health columnist of Europe 1, Jimmy Mohamed. 

Why do I need to take vitamins?

They are quite simply essential for our body.

"Vita" translates to "life" and "amine" means "organic substance".

It is a substance that is necessary for life, which the body needs to function, but which the body cannot produce in sufficient quantities. 

All our vitamins are found in our food except vitamin D. Certainly, there is a little in salmon, in cod liver oil, in eggs, in milk, but to synthesize it, we need rays of the sun.

And so, with winter, the days are shorter and the risk of deficiency increases.

What is vitamin D used for?

Vitamin D is important for the bones, especially it helps to absorb calcium.

It is also used for the proper functioning of muscles, protects neurons and acts against certain cardiovascular diseases.

There is also a role in certain cancers.

Especially, people who are deficient in vitamin D have an immune system that is less efficient.

And we also realized that covid-19 patients, who are in intensive care, are deficient in vitamin D. Obviously, taking vitamin D does not mean curing the coronavirus or protecting yourself from it.

However, a little supplementation could not hurt.

Do some people need it more than others?

Deficiencies are extremely common and some people need it more than others, especially children.

They are in full growth and therefore, for the bones, they need vitamins D. Moreover, they often have a supplementation but which one tends to forget when they grow up.

We give them small drops when they are very small, but then we forget, even if we have to keep giving them.

The elderly are also prone to deficiencies since absorption is poorer.

Of course, they have vitamin D in their diet and in the sun's rays.

However, they will be in deficit and this will weaken their bones.

The same goes for people who are obese.

The need for vitamin D is two to three times greater in an obese person because vitamin D will be sequestered in fatty tissues.

Blocked by fat, it will be less available.

Vitamin D is taken in the form of an ampoule and is not very expensive in pharmacies.