"The industry often says that genetically modified foods are the most promising way to meet the food needs of the 21st Century," says Dr. Nestle. "This is an exaggeration."
Nestle says food shortages around the world are the result of poverty and other social problems that cannot be solved with a technological fix - a sentiment echoed by other food experts.
"In the U.S., we have had food surpluses for a decade, and yet we still have hunger," says Jean Halloran, director of food policy initiatives at Consumers Union, which publishes Consumer Reports. "It's not because we don't have enough genetically modified foods. Some people can't afford food at any price."