Is vitamin D the answer to Covid?

Vitamin D has been a popular topic in the Covid-obsessed media lately, thanks to D’s role in immune function. Covid infections have been much more severe in countries where vitamin D levels are low. What are the possible explanations? Vitamin D can be made in skin that’s exposed to specific UV rays from sunshine. That […]

In winter our thoughts turn to vitamin D

True facts: Winter = dark Sunshine = vitamin D Therefore Winter ≠ vitamin D. Strictly speaking, “vitamin” D is not a vitamin at all.  It can be manufactured by your body when specific UVB rays (290 to 315 nanometers) of sunlight hit your skin.  Those rays cause a biochemical reaction that transforms a molecule in skin […]

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