The U.S. Department of Health and Human Services (HHS) released findings from its Final Review for Healthy People 2010 on October 6, 2011.
Download the Healthy People 2010 Final Review
In this interesting report we can find interesting statistical data regarding health of U.S. population, what's happened in the last 10 years and how much health target have been achieved or not.
Of course these data can not be extended to European population but can be used as indicators of trends in western populations.
I recommend the section regarding nutrition where we can find (for example) data on
calcium intake and iron deficiency in population.
For example we see that iron deficiency is about 9% in general population up to 36% in low income pregnant women.