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Tests for Vitamin D

122 pages in Testing for Vitamin D category
Vitamin D testing: Facts and VitaminDWiki Opinions

  • Fact: Many countries no longer pay for more than 1 or even any Vitamin D tests
      They feel that vitamin D testing is not needed except for a few conditions
  • Fact: Vitamin D tests are not very accurate/consistent: typically +- 5 nanograms
  • Opinion: Home blood spot tests have similar accuracy/repeatability as the lab tests
  • Fact: Low cost vitamin D tests are coming, but are not available in the US yet
       Low-cost test by Nanosys is available outside of the US
       both yes/no 35 ng and quantitative ($13 in quantity)
       update Low-cost Vitamin D testers (about 13 dollars in quantity) – Feb 2018 including cost of readout device
  • Fact: 3 major gene problems are not noticed by standard Vitamin D tests
       ~ 20% of Vit D tests show OK levels in blood when genes restrict VitD getting to cells
       Hint that Vit D not getting to cells: Vit D related diseases run in your family
  • Fact: A vitamin D test will rarely (<1 in 1000) indicate that you are getting too much
  • Opinion: If only getting a single test, wait till after supplementing with Vit D
       3 months after starting a maintenance dose or 4 weeks after a loading dose

See also
Low cost vitamin D Blood Tests
Quick, free, self test of vitamin D deficiency not quantitative
10 Most-visited pages in Test Vitamin D category

Id Page Hits Last modification Creator Categories
2095 Quick, free, self test of vitamin D deficiency 130469
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266 Low cost vitamin D Blood Tests 94205
31 Jul, 2018 15:11
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5136 Warning – Medicare will pay for just 1 vitamin D test PER LIFETIME (if not related to a few diseases) 27824
30 Dec, 2015 16:25
admin Tests for Vitamin D
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2694 VA showed increased vitamin D associated with lower health costs - Lancet May 2012 11739
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Cost savings with Vitamin D
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3814 Tests for Vitamin D 10169
31 Jul, 2018 15:08
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2022 Consultation to medical professionals on Vitamin D Testing - Sept 2011 9818
24 Mar, 2012 13:43
admin Tests for Vitamin D
Overview for doctors
6554 Active Vitamin D (Calcitriol) reference ranges, why too high is a problem– April 2015 9074
26 Jul, 2015 15:45
admin Tests for Vitamin D
1686 Hypothesis – Optimize vitamin D at home by measuring excess Calcium in urine 8831
04 Jan, 2015 11:37
admin How much Vitamin D
Tests for Vitamin D
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3859 Instant vitamin D Yes-No test now available 7683
13 Oct, 2017 00:59
admin Tests for Vitamin D
Top news
4185 8,000 percent increase in Vitamin D testing by Medicare in a decade - June 2013 6699
08 Mar, 2014 13:20
admin Tests for Vitamin D

The most recent 100 items in Vitamin D Test category

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