What Prop 37 will do is add a line of ink to a label -- as is currently required for 3,000 other ingredients -- so consumers know which products have been altered in a laboratory. That’s why the vast majority of Californians support this common-sense measure, and it’s why 50 other countries already require that GMOs be labeled.
$34.4 Million Can

Right to Know Blog

Research: IN PDF. sorry...

http://research.sustainablefoodtrust...inal-Paper.pdf