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Overview Vitamin D3 not D2

Vitamin D2 has been known for a long time to not be as good as vitamin D3

VitaminD2 was the first to be discovered and, until 2011, was the only one that most doctors could prescribe
The D3 form has been known for many decades, but the medical profession has not yet adapted - after all, only 20,000 papers on D3 so far.

Several recent studies have shown that vitamin D2 actually reduces the levels of D3 in the blood
AND, worse still, D2 actually INCREASES a health problem, instead of reducing it, the way vitamin D3 does

Hint: if you can buy it, it is Vitamin D3. Vitamin D2 is only available by prescription
Note: some multivitamins and milk/food fortifications still use D2, sut in such low quantities that it can be ignored.

All items in D3 vs D2 73 items

Far better response to D3 than D2

Response to 20,000 IU vitamin D3 extra per week

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Most > 20ng and some > 40ng


Response to 20,000 IU of vitamin D2 per week (im = inter-muscular injection)

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Very few got to 40ng

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There have been only 2 clinical trials with D2 since Jan 2010, all the other clinical trials have been for D3

See also VitaminDWiki

See also web



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See also PDFs at the bottom of this page

Changes in circulating 25-hydroxyvitamin d according to vitamin D binding protein genotypes after vitamin D3 or D2 supplementation April 2013
   Yet again: D2 reduces the levels of D3 in the blood. Also, D2 does not turn on genes.

Vitamin D2 Supplementation Amplifies Eccentric Exercise-Induced Muscle Damage in NASCAR Pit Crew Athletes: Jan 2014
   Vitamin D2 made muscle damage WORSE. 3,800 IU D2 from Portobello mushroom powder
  Vitamin D Council post on this item

short url for the page = http://is.gd/vitd3d2


Page last modified on 10 February, 2014


List of attached files
ID Name desc uploaded Size Downloads Actions
3416 pdf D2 muscle.pdf PDF - 2013 20 Dec, 2013 by admin 245.27 Kb 69 View Download  
2300 pdf D3 better than D2 yet again.pdf PDF 05 Apr., 2013 by admin 170.73 Kb 182 View Download  
925 jpg D2 pill C.jpg 07 Dec, 2011 by admin 3.61 Kb 2299 View Download  
924 jpg D2 pill B.jpg 07 Dec, 2011 by admin 3.85 Kb 2298 View Download  
923 jpg D2 pill A.jpg 07 Dec, 2011 by admin 5.60 Kb 2278 View Download  

Number of pages on VitaminDWiki = 4875


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Health Problems and D

{#s as of April 10, 2014}