“How is that even possible? I just got back from 3 months at the South coast of Spain?”
At that time I was living in the Netherlands and had been travelling to the sun in wintertime. I was in the GP’s office to get the results of my general medical test and just didn’t understand how I could have a Vitamin D deficiency despite a lot of sun I had been in.
The doctor explained to me that ageing skin does not absorb as much Vitamin D as younger skin and suggested taking supplements. Until then, I was very reluctant to take any supplement at all. I thought that a healthy diet should be sufficient.