Which has less gmo contamination--soy or corn?

Soy.: As a general rule, soy will contain less gmo contamination than corn. Check out "http://www.Fiestafarm.Net/corn--soy.Html" for a more detailed answer.

Corn-both likely GMO: In 2011 88% of the us corn crop was gmo while 94% of the soy crop was gmo. It is reasonable to presume that virtually all products containing corn and soy as long as their oils, corn syrup, soy protein etc. Are gmo unless labeled organic. Gmo corn and soy have not been proven safe. See http://www.Nongmoproject.Org/learn-more/what-is-gmo/ and http://drrandybaker.Com/2013/04/22/organic-food-diet/.