I do, with good reason. When I had my road accident I was in a bad way for some months, in fact 2 years, and I was tested for all and sundry. Some 18 months in I had a full blood test at the hospital endocrinology dept to find out why things weren't right. All the numbers came back OK apart from Vit D, which was just below the acceptable level. Not enough to be a problem, but a marker. Now at that time I was taking a multivit most days with 100% RDA Vit D, and I had a decent diet, lots of exposure to the sun (it was spring) and I have pale skin. So I have since carried on. The supermarket ones cost next to nothing anyway, literally a penny or two a day.
There are peer reviewed medical papers that suggest that Vit D supplements are a good idea for dark skinned people living in northern latitudes such as the UK. A number of British Asians have low levels of Vit D, this is a function of diet, lifestyle and genetics and it is severe enough to be (AIUI) one of the targets for the NHS in places like Bradford.