G.M.O. Labels for Food Proliferate Even as a Battle Over Them Rages

There are few industry debates as heated these days as the one about labeling foods that contain genetically modified ingredients.

And while interest groups and advocates wage war in state legislatures, on ballots and in Congress over what should be disclosed on product labels, products certified as not containing genetically modified organisms are proliferating on grocery shelves without any nationwide mandatory regulations.

Moreover, many manufacturers are nodding to the public debate, adding the phrase “non-G.M.O.” to their packaging without a verification process.

“We’ve put it on our labels because it was something our customers wanted to know,” said Hitesh Hajarnavis, chief executive of Popcorn Indiana, which sells ready-to-eat popcorn.

So if more companies elect to stick labels on their products stating that they are G.M.O.-free, whether verified or not, does that make the fierce policy debate increasingly moot? “It’s an interesting question,” said Jean Halloran, director of food policy initiatives at Consumers Union, which lobbies for mandatory labeling.

Some of them now are putting products through the certification process because they believe consumers are beginning to look for its butterfly seal. Today, 32 of Bob’s Red Mill products carry the Non-GMO Project seal, and the company plans to have all of its products verified.

Clif Bar & Company, however, worries that the Non-GMO Project seal has inadvertently created confusion among consumers about the meaning of another seal, the Department of Agriculture’s organic seal. The organic seal, governed by a federal law, is a guarantee that a product contains no genetically engineered ingredients — but many consumers do not know that.

“The organic seal is an assurance that food is grown without synthetic and toxic chemicals and in a manner good for the environment, as well as being non-G.M.O.,” said Matthew Dillon, senior manager for agriculture policy and programs at Clif. “While the intent of the Non-GMO Project is good, they have inadvertently caused more confusion in the marketplace.”

About three-quarters of the ingredients Clif uses are organic, and the company’s goal is to be 100 percent organic. So it intends to stick with its current labeling practice, including the phrase “We source ingredients that are not genetically engineered” in the ingredients list on its packaging, Mr. Dillon said.

The New York Times