Most packaged foods - such as cereals, sodas, cookies, crackers and salad dressings - contain genetically modified ingredients.

If the proposition passes in November, the packaging of most foods with common ingredients like corn syrup, sugar, canola oil and soy-based emulsifiers will declare that they contain ingredients that have been genetically altered.

Biotech crops are so commonplace in the United States that about 90 percent of the nation's corn and soybeans are genetically engineered, the Bee reported. For that reason, Colin Carter, professor in the Department of Agricultural and Resource Economics, views the labeling debate as more about the business of food than its safety.

He predicts that more people would buy organic goods if comparable non-organic items carried labels saying they've been genetically engineered.

"This does not present a health risk," Carter said. "It's about money."

Christine Bruhn, UC Cooperative Extension specialist in the Department of Food Science and Technology at UC Davis, agrees that the term "genetically engineered" would scare away consumers. However, the article pointed out, such food labeling is already required in more than 40 countries.

University of California at Davis Reports Make Dubious Claims on Prop 37
Michele Simon, Huffington Post Blog

A public health lawyer called into question two studies by UC Davis researchers that predict the effects of labeling foods that contain genetically modified ingredients, as would be required if Proposition 37 passes in November. The studies are "California's Proposition 37: Effects of Mandatory Labeling of GM Food," co-authored by Carter; and "Proposition 37 - California Food Labeling Initiative: Economic Implications for Farmers and the Food Industry if the Proposed Initiative were Adopted," co-authored by Julian Alston and Daniel Sumner, professors in the Department of Agricultural and Resource Economics at UC Davis.