Being fair skinned means you need only a few minutes of sun exposure to get adequate D. That is what I’ve read. Of course this is when the sun is high enough in the he sky to generate D in your skin. In AZ you should get it most months of the year.Why not sit in the sun for a few minutes and get it naturally for free?I've been taking 3K of Vit 3D since 2014.
I haven't been sick with flu or this virus
I live in AZ. but right now it's too cold and in summer it's too hot for very fair skin, but I do have a lite tan on my arms all year round.
I also am allergic to sun screens they make me breakout in hives .
My doc told me to take them.
Well I'm going with what my Doctor says and I have been taking them since 2014 with no colds,flu or covid so far