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Tests for Vitamin D

133 Vitamin D Testing studies
Vitamin D testing: Facts and VitaminDWiki Opinions
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  • Fact: Many countries no longer pay for more than 1 (some not pay for even a single Vit D test)
      They feel that Vit D testing is not needed except for a few conditions (Rickets, etc)
  • Fact: Vit D tests are not very accurate
       The best lab tests have accuracies and repeatabilities of +-5 ng
       Many lab tests have accuracies and repeatabilities of +- 10 ng - or worse
  • Fact: Low-cost office/home Vit D tests are available around the world (not US as of 2018)
       Low-cost 35 ng Y/N test by Nanospeed
       Low-cost Vitamin D testers (about 13 dollars in quantity) – Feb 2018 Nanospeed
       Smart-phone $35 test being sold outside of US Immundiagnostik.com still getting information Aug 2019
  • Fact: 3 major Vit D gene problems are not noticed by Vit D tests
       ~ 20% of people have poor Vit D genes
       Hint that Vit D not getting to cells: Vit D related diseases run in your family
       Another hint - you have one of the 40 diseases which are 2X more likely if have poor genes
  • Fact: A Vit 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 137078
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266 Low cost vitamin D Blood Tests 100086
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5136 Warning – Medicare will pay for just 1 vitamin D test PER LIFETIME (if not related to a few diseases) 31027
30 Dec, 2015 16:25
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2694 VA showed increased vitamin D associated with lower health costs - Lancet May 2012 12590
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3814 Tests for Vitamin D 12109
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6554 Active Vitamin D (Calcitriol) reference ranges, why too high is a problem– April 2015 10901
26 Jul, 2015 15:45
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2022 Consultation to medical professionals on Vitamin D Testing - Sept 2011 10566
24 Mar, 2012 13:43
admin Tests for Vitamin D
Overview for doctors
1686 Hypothesis – Optimize vitamin D at home by measuring excess Calcium in urine 9658
04 Jan, 2015 11:37
admin How much Vitamin D
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3859 Instant vitamin D Yes-No test now available 8814
17 Dec, 2018 01:53
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4185 8,000 percent increase in Vitamin D testing by Medicare in a decade - June 2013 7583
08 Mar, 2014 13:20
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The most recent 100 items in Vitamin D Test category

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Tests for Vitamin D        

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