Vit K is listed as a nutrient WHEN LOW, may impact Vit D.
Another more common one, significant one, is magnesium. About 70% of typical Americans are low in magnesium. When Magnesium is low, Vit D is not utilized well.
Quote:
Vitamin D's Co-factors
Vitamin D has co-factors that the body needs in order to utilize vitamin D properly. They are:
* magnesium
* zinc
* vitamin K2
* boron
* a tiny amount of vitamin A
Magnesium is the most important of these co-factors. In fact, it is common for rising vitamin D levels to exacerbate an underlying magnesium deficiency. If one is having problems supplementing with vitamin D, a magnesium deficiency could be the reason why.
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from
http://www.vitamindcouncil.org/
Vitamin K is in green leafy veggies, and most multivitamin mixtures. Taking too much may affect your blood clotting.
This is a monograph on Vit K:
http://lpi.oregonstate.edu/infocente...inK/index.html
I think getting it from food is your safest method.
Magnesium however, is harder to get from foods today unless you eat alot of nuts, and beans.
I have a magnesium thread on our Vitamin forum:
http://neurotalk.psychcentral.com/thread1138.html
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Weezie looking at petunias 8.25.2017
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