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Race vs vitamin D level - Veith May 2011

The following is just a single slide from a presentation by Dr. Vieth May 2011

Green line = 20 ng/ml = supposed OK vitamin D level defined by IoM Nov 2010

It appears that Canadians lacking European ancestors are not able to adjust to the low levels of vitamin D in the winter 

Many groups have defined 30 ng/ml = 75 nmol/ml on the chart = minimum

in wikipage: http://www.vitamindwiki.com/tiki-index.php?page_id=1660

Another chart by Dr.Vieth 2011

see wikipage: http://www.vitamindwiki.com/tiki-index.php?page_id=1663

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See also VitaminDWiki