Although there has never been any data definitively linking genetically modified food to health problems, many scientists and nutritionists worry that messing with the genetic makeup of food could have adverse effects on the environment and the people who eat it.

In light of this, Californians will be voting on a Proposition 37 this November, which would require special labels on all genetically modified food.

According to a poll of adult residents of that state, 77 percent plan to vote for the proposition. However, their support may not be that strong. When asked if they would still be in favor of the labeling if it ended up increasing food prices only about 40 percent of the respondents remained on board.