From what I’ve always read, they say 20 minutes exposure to the sun a day is what’s needed for Vitamin D production. Who knows? Maybe I’ll ask them to check it next time.
From my estimate, right now, I’m getting about 800-1000 a day, so it probably wouldn’t hurt to add a separate D supplement.
.....they say 20 minutes exposure to the sun a day is what’s needed for Vitamin D production.....
That is getting to the heart of the matter. There are varying degrees of sunlight and clothing that effect the exposure time but the principle holds.
The problem is that we no longer live out doors. Some women are outdoors only to go from car to the house or place of work or store. Then there is winter and dreary sunless days for weeks on end. That is when there is a problem.