According to Hanna Augustin, docent in clinical nutrition at the University of Gothenburg, it is not common for the average Swede to be vitamin D deficient, but it is important to review what you take in during this part of the year.
- The sun contributes during the summer, but during the winter it is through the diet or supplements that we get vitamin D, she says.
Diets rich in vitamin D include fatty fish, dairy products and herbal drinks.
"Don't know enough"
However, feeling hungover during the darker time of the year does not have to be due to the vitamin D content.
- We don't know enough to be able to say that vitamin D deficiency makes you tired.
You can take a supplement and feel energetic, but possibly it's a bit of a placebo, she says.
Supplements are suitable for some, but not necessarily for all, and overdoses can be harmful, according to Hanna Augustin.
In the video, Ola Nordqvist, pharmacist and doctor of biomedicine, explains, among other things, how one can be harmed by overdoses.