A. There are too many unknowns. There aren’t enough studies really documenting that they are safe. The safety data is all generated by the companies and submitted to our government. We have lots of reasons as consumers to ask for independent safety studies. GM ingredients are largely found in processed food—except for papayas, which in this country tend to be GM varieties. The only way to be certain you are not eating GM foods is to buy certified organic, which must be 95 percent GM-free.