Chart of Vitamin D levels vs disease - Grassroots Health Created June 2013 On this page Graphed by VitaminDWiki from Grassroots Data Shown at Vitamin D Workshop PDF is attached at the bottom of this page Here is a previous version See also VitaminDWiki More than 30 ng of vitamin D probably needed for long-latency diseases – Aug 2012 Grassroots Health participants Vitamin D vs age, intake, and resulting level – Sept 2013 Vitamin D charts from GrassrootsHealth - May 2016 Short URL = https://is.gd/GRH2013 Tags: Health Problem Optimum