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218 articles in Genetics the category


see also 223 articles in Vitamin D Receptor, 89 articles in Vitamin D Binding Protein

Vitamin D blood test misses a lot
Blood Test Misses a lot (VDW 3439)

  • Snapshot of the literature by VitaminDWiki - (subject to many future developments)
  • Vitamin D from coming from tissues (vs blood) was speculated to be 50% in 2014, andi in 2017 is speculated to be 90%
  • Note: Good results from a blood test (> 40 ng) does not mean that a good amount of Vitamin D actually gets to cells
  • A Vitamin D test in cells appears feasible (personal communication)
    However test results would vary in each tissue due to multiple genes
  • Good clues that Vitamin D is being restricted from getting to the cells
    1) A vitamin D-related health problem runs in the family
       especially if it is one of 41+ diseases related to Vitamin D Receptor
    2) Slightly increasing Vitamin D show benefits (even if conventional Vitamin D test shows an increase)
    3) Vitamin D Receptor test (<$30) scores are poor
    4) Back Pain
        probably want at least 2 clues before taking adding vitamin D, Omega-3, Magnesium, Resveratrol, etc
          The founder of VitaminDWiki took action with clues #3&4

Additional information on the Genes in VitaminDWiki

Gene# of pages
Oct 2017
CYP27A1223 Liver
CYP2R1 626Tissue
Vitamin D Binding Protein
3,450 Blood
CYP27B1803Kidney & Tissue
Vitamin D Receptor 6,030Cell Tissue
CYP24A1 745 excrete excess

The first chart on this page untill Oct 2017 had been

The following chart triggered the creation of the chart at the top of this page


Note the assumption, which may be correct, that the immune system only responds to tissue Vitamin D, rather than from blood vitamin D

Immune modulation by Vitamin D, food allergy, chart of genes – July 2015 has the following chart
Genes and vitamin D  page 6748

Pancreatic Cancer massively deregulates the local Vitamin D receptors and CPY24A1 – July 2014 is an example of massive gene changes
     shaded text and numbers in the chart were added by VitaminDWiki
Most-visited 10 pages in Genetics category

Id Page Hits Last modification Creator Categories
3439 Genetics 29867
17 Jun, 2018 19:09
ricks99 Genetics
Vitamin D Receptor
Vit D Binding Protein
4017 Vitamin D - Health panacea or false prophet (Klotho gene) – Jan 2013 14954
14 Apr, 2013 01:32
admin Genetics
2269 Pharmacology of vitamin D - April 2011 13604
06 May, 2013 21:02
admin Health
Overview for doctors
3335 Vitamin D levels are strongly associated with genes: overview of twin studies – Nov 2012 12588
04 Jan, 2015 02:37
admin Genetics
Vitamin D Receptor
1099 Blacks may not need as much Vitamin D (for their bones) 11913
07 Jul, 2018 10:56
admin Skin - Dark
Bone - Health
645 The darker the skin the less the vitamin D – July 2010 11689
02 Nov, 2012 21:36
admin Skin - Dark
2248 Possible ways that vitamin D does its magic 11197
03 Jun, 2014 20:45
admin More D topics
1447 CYP24A1 enzyme and Vitamin D 10241
31 Aug, 2017 13:51
admin Genetics
1132 Schizophrenia and vitamin D have latitude-related genes – Nov 2010 9583
10 Dec, 2014 15:44
admin Vitamin D Far from equator
3881 Vitamin D level can be high, but little benefit: due to kidney, genes, low Magnesium etc. 8452
28 Nov, 2014 19:11
admin Deficiency of Vitamin D
How much Vitamin D
Vitamin D and Magnesium
Top news
Vitamin D Receptor
Vit D Binding Protein

All articles in both Pregnancy and Genetics:

All articles in both Multiple Sclerosis and Genetics:

Here are all 218 articles

Note: a software bug includes items from the subcategories of Vit D Receptor and Vit D Binding protein - sometimes 3 entries total


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