Dr Sam Rodgers, chief medical officer at Medichecks, said the rise in Vitamin D is steady across men and women.
He told PA: “The data is robust and shows a clear increase to vitamin D in the summer of 2020, common across males and females.
“The conclusions we can draw from this are that the shift to work from home, meaning less commuting, and furlough offered more opportunity to spend time outdoors in the sunshine than was possible in 2019.
“We should also factor in the possibility that a greater number of people were heeding NHS guidance and choosing to supplement vitamin D.
“Both of these are positive developments because maintaining good vitamin D levels is important for keeping bones, teeth and muscles healthy.”