Date:   1/8/2010 6:15:41 AM ( 15 y ago)
Hits:   13,414
URL:   https://www.curezone.org/forums/fm.asp?i=1551368

I examined some sources and they say that between 50-80 ng/ml is the normal level in serum.

>200 ng/ml are potentially toxic...


http://dietary-supplements.info.nih.gov/factsheets/vitamind.asp

 

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