Has the use of sunscreen depleted/contributed to our very low vitamin D levels?

We’re all usually short of vitamin D by mid-winter and the best thing to do is to use supplements as a matter of course – as they’re cheap and helpful. In the UK, the sun is only strong enough to create vitamin D in the skin between April and September, and then you have to weigh up whether you prefer to go with your face unprotected and take the damage that may cause to the skin. Using sunscreen doesn’t contribute much to low vitamin D as very few of us are scrupulous enough with our application of it to stop vitamin D synthesis altogether. I prefer to protect my face and, when it’s warm enough, expose my arms and legs to the sun, but whenever I’m tested, my vitamin D levels are always low.