Unless labeled explicitly, corn, soybean, cottonseed, and canola oils produced in North America almost certainly contain genetically modified products. Choose pure olive, coconut, sesame, sunflower, safflower, almond, grapeseed, and peanut oils. Also choose preserves, jams, and jellies with cane sugar, not unspecified “sugar” (which will likely contain GM beet sugar) or corn syrup.