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