I think it's an attempt to link the observed poor outcomes in black communities in some countries to a lack of vitamin D. I'm not sure I've seen evidence to support this however.Can someone please tell me wtf this is all about?!?!
The most common possible explanation I've seen is the higher incidence of risky comorbidities like diabetes, hypertension and heart disease in those black communities, linked in turn to socio-economic factors.
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