Public health officials are urgently reviewing the potential ability of vitamin D to reduce the risk of coronavirus.
It comes amid growing concern over the disproportionate number of black, Asian and minority ethnic people contracting and dying from the disease, including a reported 94% of all doctors killed by the virus.
A delayed Public Health England review into the reasons why BAME people are disproportionately affected, which pointed to historical racism, did not review the role of diet and vitamin D.
The Scientific Advisory Committee on Nutrition (SACN) began this work last month and is considering recent evidence on vitamin D and acute respiratory tract infection in the general population. Evidence will be considered on specific population groups, including those of different ages and BAME groups.