I have just returned from a fantastic conference by the Institute for Functional Medicine in Atlanta. The conference was on Immunology so apropos for the aggressive cold and flu season we are having this year! I wore a personal air purifier and took extra doses of Vit C and D before the plane ride home!
It got me thinking how the beautiful sunny days in Colorado (like the beautiful ski day in Steamboat with my family!) still do not give us enough Vitamin D. We all should supplement with 3000 IU of vitamin D in the winter months. Remember to take with food! Vitamin D is fat soluble and needs fat to be absorbed into the bloodstream.
Vitamin D is an important player in our immune response. Some hypothesize that the reason for increase in colds and flu in the winter months is the relative lack of Vitamin D and our weakened immune system as a result.
In 2014, Delvin et al summarized the literature about the importance of Vit D and about how deficiency in this vitamin plays in the development of Immune and Autoimmune diseases. Consider getting your 25 hydroxy Vit D level checked. Levels should be between 45 and 60.
Crit Rev Clin Lab Sci. 2014 Aug;51(4):232-47. doi: 10.3109/10408363.2014.901291. Epub 2014 May 9