Opponents are far outspending supporters of California Proposition 37, which would require labeling of food products made from genetically modified organisms (GMOs).

MapLight Voter’s Edge, a non-partisan organization, provides information about ballot measures  along with the funding, endorsements, and advertisements for and against the ballot measure. The organization’s analysis shows campaigns supporting the proposition have raised $2 million, while opponents have raised $25 million. Organic-foods and alternative-health groups account for 86 percent of the total money in support, while food and beverage, agriculture and bio-tech companies have provided 99 percent of the total money in opposition.
According to MapLight, the top five organizations providing funds in support of the measure are:

  1. Mercola.com Health Resources LLC: $800,000
  2. Dr. Bronner's Magic Soaps All-One-God-Faith Inc.: $290,000
  3. Nature's Path Foods U.S.A. Inc. Fine Natural Food Products: $250,709
  4. Wehah Farm, Inc./Lundburg Family Farms $200,000
  5. Organic Consumers Fund $54,639

The top five organizations providing funds in support of defeating the measure are:

  1. Monsanto Company: $4,208,000
  2. E.I. du Pont de Nemours & Co.: $4,025,200
  3. PepsiCo, Inc.: $1,716,300
  4. BASF Plant Sciences $1,642,300
  5. Bayer Crop Sciences $1,618,400

A significant percentage of commercially manufactured food products that use corn or soybeans as ingredients would be affected by the labeling law, as many varieties of those crops are considered genetically modified. The proposition would exempt animals fed or injected with genetically engineered material but not genetically engineered themselves.

According to a Huffington Post article, polls show the proposition with a good chance of passing, but the well-funded opposition campaign is likely to erode some of that support.