One more fact. If you are a OG (old gomer) like me ( 71) you may only absorb 20% of the vitamin D that you would have a couple of decades ago. The skin is just not as good doing the vitamin D thing as you age. So you can not count on the sun to get your requirement of vitamin D from the sun. Supplement too!
Where people get into trouble is they are not in the sun at all then they get a big dose in a hour or two, with consequential skin damage. Not a good idea! So follow your dermatologist, doctors advice and put on a sun screen to protect your skin. Maybe not such a good idea, but maybe a better choice than getting sun burned. Maybe. Here is why. Sun screen rubbed into the skin goes below the skin and into the circulation. It ends up in the same place as if you were to drink the stuff. So get out your sunscreen. Look at the ingredient. Get on the computer and look up each of the individual ingredients. Still want to use the stuff all the time, at all? Decide for yourself.....
Aristotle talked of the Golden Mean in life. The golden mean is the desirable middle between two extremes, one of excess and the other of deficiency. A lot of things in life are like that.....