- "Did you know that there’s no seasonal difference in elderly deaths from influenza in the winter compared to summer in Norway? Did you also know that Norway has the highest Vitamin D levels in Europe – attributed to their high consumption of Cod Liver Oil? And that Great Britain has a low Vitamin D level and has TWICE as many elderly deaths due to influenza? I think I want my kids to take some cod liver"
Reference Epidemic influenza and vitamin D 2007
J. J. CANNELL,1,* R. VIETH,2 J. C. UMHAU,3 M. F. HOLICK,4 W. B. GRANT,5 S. MADRONICH,6 C. F. GARLAND,7 and E. GIOVANNUCCI8