Typically you don't need to worry about non-gmo food being contaminated with roundup - a scandalous fact about roundup is that it tends to kill plants that are

Typically you don't need to worry about non-gmo food being contaminated with roundup - a scandalous fact about roundup is that it tends to kill plants that are exposed. You also don't need to worry about contamination of e.g. water supplies. Glyphosate tends to adhere to soil pretty well, where it is eventually consumed by microbes. Glyphosate isn't absorbed through the roots and isn't effective as pre-emergence herbicide. The real safety challenge with roundup is the surfactant use. Glyphosate alone just isn't very effective without the surfactant to punch through the plants' waxy outer layers. These surfactants do cause loads of problems. Note that there are actually very few GMO foods - it only makes sense to develop them for high volume crops. Anything you can buy whole or minulally processed (e.g. an ear of corn) is going to be untouched by glyphosate, even though gmo corn does exist. http://pmep.cce.cornell.edu/profiles/extoxnet/dienochlor-glyphosate/glyphosate-ext.html http://pmep.cce.cornell.edu/profiles/extoxnet/dienochlor-gly...