Many take vitamin D as a dietary supplement during cold and darker times of the year. In the event of an overdose, however, the artificial supply can be harmful.

the essentials in brief

  • Vitamin D deficiency occasionally occurs in winter.
  • However, one should be careful to counteract this with food supplements.
  • The body creates its own store of vitamin D for the winter.

Vitamin D is often referred to as the “sun vitamin”. The vitamin is absorbed by the human body through sunlight. For some people, vitamin D deficiency can occur during cold and gloomy seasons.

But you can counteract this by taking food supplements. This is what the German Nutrition Society (DGE) writes on its website.

The question arises, can this artificial intake be harmful to health? The answer is yes. An overdose of vitamin D supplements can lead to serious health consequences.

An overdose of vitamin D is life threatening

The consequences are excessive calcium levels, which can lead to acute nausea and vomiting. In the worst case scenario, it can lead to severe kidney damage, cardiac arrhythmias, loss of consciousness and ultimately death.

What is frightening here is that overdosing can happen quickly, as the DGE explains. The body can naturally store a store of vitamin D for the winter.

Experts therefore advise, if possible, not to interfere with the body’s own vitamin D balance. The reserves often last until spring and from then on the sun usually shines longer again.

More on the subject:

Nature death vitamin


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