GMO Corn has 14 ppm of Calcium and NON GMO corn has 6130 ppm. 437 X more.
GMO corn has 2 ppm of Magnesium and NON GMO corn has 113ppm. 56 X more.
GMO corn has 2 ppm of Manganese and NON GMO corn has 14ppm. 7X more.

Look at the levels of Formaldehyde and Glyphosate IN the corn! The EPA standards for Glyphosate in water in America is .7ppm. In Europe it is .2 ppm. Tests showed organ damage to animals at .1ppm of Glyphosate in water. This corn has 13 ppm!

In another study taht Dr. Huber reported,  .97 ppm of formeldehyde showed to be toxic in ingestion to animals. This corn has 200X that! That is why the animals , given a choice will not eat it at all, they can smell the formeldehyde!

The full article can be read here