MotherEarth News Oct 2008
"pastured eggs have anywhere between 4 to 6 times as much vitamin D as typical supermarket eggs."
Details on the MotherEarth Survey
Whole Health Source May 2009
"In 2007, the magazine Mother Earth News decided to test that claim.
They sent for pastured eggs from 14 farms around the U.S., tested them for a number of nutrients, . . . "
- Conventional: 34 IU
- Pastured avg: 136 - 204 IU
includes other nutrients as well