Safe or not, consumers are increasingly interested in what is in their food, including GMOs.
David Ropeik, the author of the book How Risky Is It, Really? Why Our Fears Don't Always Match the Facts, says he thinks the food industry should endorse labeling so it can move past the debate.
"By supporting labeling, companies would say, 'There's no risk, we have nothing to hide,'" he says.
AP Science Writer Seth Borenstein and AP Medical Writer Lauran Neergaard contributed to this report.
Genetically modified foods confuse consumers
Mary Clare Jalonick, AP 9:03 a.m. EDT May 10, 2014