Currently, food companies in the U.S. are not required to label foods as containing GMOs. In the U.S. most corn and soybeans are produced using GMOs so any products with corn or soybeans and it has been said that that canola oil, cottonseed oil and sugar beets also often are genetically modified. You can look for the “non-GMO project verified” label, so read your labels and/or just buy organic.