Vitamin D production efficiency decreases a lot as you get older. Not a simple matter of getting some sun or taking a Vitamin D supplement.
I’m a believer in getting tested twice a year - people overestimate what they get from the sun. It’s not as if you can go boating in the Midwest for 4 hours a weekend and be sufficient in it.
Vitamins wouldn’t help if you were older?
Not only that, but depending on how far north you live, i.e., northern states, there isn’t enough UVA rays reaching you if you stay outside all day long.
Couple that with lower Vit D decreasing as age increases, most are D deficient. Why do you think they started putting D in milk and other foods.
Yeah, supplements are worthless. Except that our foods are severely lacking in basic nutrients and minerals, for the past 80 or so years, so you have to get them somewhere.
Some doctor called taking supplements as “expensive urine” and I’d MUCH rather piss if away than pay for being sick all the time, like a lot of people are.
It’s “anecdotal”, but since I started taking supplements, I don’t get sick anymore. No flus, colds, etc. Course I quit shaking hands years ago. And up til this media hyped virus panic came along, people made fun of me for that. LOL Guess who’s laughing now.