D2 is typically always low...it is not a natural form of D in human body and is metabolized away as a "drug"....
http://www.vitamindcouncil.org/vitam...macology.shtml
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Ergocalciferol does not exist in detectable quantities in the human body, only in tiny quantities in plants and as such is "unnatural" when in the human body. You can not get any appreciable ergocalciferol by eating vegetables. Ergocalciferol is metabolized to various substances in the body, some of which are not normally present in humans, although these metabolites have never been shown to be dangerous. There is also some evidence that ergocalciferol is more toxic in overdose, which is curious as it is only about half as potent as the naturally occurring vitamin D, cholecalciferol. Your body also metabolizes ergocalciferol more quickly than cholecalciferol.
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Ergocalciferol == D2
cholecalciferol ==D3 (active form)
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Weezie looking at petunias 8.25.2017
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