The person interviewed in the BBC article is a football player and fits the bill of 'active' and 'gets outside', none of which addressed the underlying issue.
My read on this article, which is validated by all the comments in this thread, is that it's a PSA to public health officials to have better outreach for darker skinned individuals living in the UK who seem to be getting systematically misdiagnosed because of a lack of knowledge.
> there is minimal methodologically rigorous research showing health benefits from exogenous supplementation.
In this day and age, this shouldn't be an open question tbh. There is an extensive body of research, with dozens of meta-analysis / systematic reviews aiming to settle the score on this. If you let Claude or your favorite LLM du jour loose on Pubmed I'm sure it will surface some very reliable conclusions.