I have hashimoto disease and thus chronic deficiency of vitamin D.

So some of my medics recommended me to take supplements until the deficiency goes away. The amount needed is quite high and into territory some medics consider unsafe.

Crazy thing is: whenever I switch medic they ask about it and then get confused.

Medics often have very strong opinions, sometimes utterly wrong ones. But whenever the subject is vitamin D they are just... confused.

I feel like vitamin D is utterly alien and mysterious. It is as if everyone knows it is there but nobody understands it very well.