- Posted on Sunday, 01 September 2013
Got a cold? Flu season approaching? Typically you're likely to reach for some extra vitamin C, zinc or echinacea. What you may not realise, however is that you may be overlooking a vital immune-enhancing nutrient - vitamin D3.
D3 or Cholecalciferol is produced in the skin on exposure to sunlight, but as we get precious few glimpses of sun during the cold, winter months, we are unlikely to be meeting our needs. In fact, some researchers suggest that one reason that we are more prone to colds, flu and infection in winter is due to lack of vitamin D production as a result of darker days.