Laura Sesana writes in The Washington Times:
Derived from genetically modified plants or animals, GM foods are created in a laboratory where their genetic makeup is altered to yield desired qualities. GM foods include corn, soybean, canola, and cottonseed oil; fruits; vegetables; trees and even salmon.
Additionally, because the Food and Drug Administration (FDA) does not require special labeling for GM foods, many American’s may consume GM foods without even knowing it. Some reports estimate up to 60% of processed food contain ingredients made from GM corn, canola, or soybeans, including ice cream, baking powder, salad dressing, chips, cookies, and pizza.