Red Submitted by Red on Sun, 2009-04-12 13:11 Below are some demographic trends and statistics on Vitamin D3 levels in the general population: Demographic differences and trends of vitamin D insufficiency in the US population, 1988-2004 Book traversal links for Vitamin D3, Demographic Trends & Statistics ‹ Some Great Video and Audio files on the Importance of Vitamin D3 Up Printer-friendly version
