Low-cost Vitamin D testers (two yes-no tests for 11 dollars) - 2024
Update 2023: Two at-home tests for $11 - Amazon UK
Even lower cost if you have a Amazon Prime account in the UK
Founder of VitaminDWiki bought a bunch of these and gave them away free at his Vitamin D presentation to a group of Icelanders March 2023

Nanospeed must buy many testers and expensive readout to get quantiative results
200 quantitive testers $2,000 ( in packs of 25)
Single readout device (in nmol or ng/mL. made by CUE) costs $600
10 minute time delay to get test results
You can run several tests concurrently
Approximately 12% accuracy (example: within 5 ng of 40 ng)
"correlation coefficient of 93.5% in comparison to LCMS assay"
Vitamin D tests costing 4X-10X as much have accuracies of about 5%
Have not been informed about FDA approval for use in the US
Less expensive and much faster (10 minute Point of care test)



📄 Download the PDF from VitaminDWiki
Nanospeed in Canada started by making Vitamin D testers with Yes/No capability
Yes/No of > 30-36 ng
Their original device can be used at home – no readout device necessary
They have sold > 1,000,000 of those testers as of 2018

For more information, contact Seema Gupta at [seema@nanospeed.ca]
See also VitaminDWiki
Tests for Vitamin D category listing has items which includes the following
Vitamin D deficiency of a group - 15 pcnt to 48 pcnt (depends on tester used) - Nov 2017
Vitamin D testing in Spain increased 3X in 2 years (considering 28,000,000 people) – Oct 2017
France restricts Vitamin D testing to 4 health problems, paper proposes 5 more – Nov 2016
Vitamin D test costs Obamacare pregnant woman 214 dollars (vs 6 dollars for a bottle) – Oct 2015
- Often $214 is out-of-pocket money
50,000 IU monthly safe to take without any vitamin D testing – RCT Dec 2013
- VitaminDWiki and many others recommend 50,000 IU of vitamin D every two weeks
Note: A blood test does NOT indicate the amount of Vitamin D actually getting to the cells
5 genes can restrict the vitamin D in the blood from getting to the cells

- click on image for details
Short URL - https://is.gd/FastVitDtest