Qualigen got their FastPack tester approved by the FDA for Vitamin D
A chart from their specifications - with red markup by VitaminDWiki
PDF is attached at the bottom of this page
Note: many vitamin D testers are not very accurate
See also VitaminDWiki
- Low cost vitamin D Blood Tests
- Vitamin D tester falsely said half of hemodialysis patients had less than 30 ng – Jan 2013
- Vitamin D testing continues to have lots of varition between systems – Nov 2012
- 80 X increase in Vitamin D testing in Australia in a decade - June 2013 which has the following extrapolated chart