From a marketing point of view, labeling is only going to take away a value-add advantage that non-GMO products have over unlabeled items. I am aware of several

From a marketing point of view, labeling is only going to take away a value-add advantage that non-GMO products have over unlabeled items. I am aware of several GMO free companies that are growing by leaps and bounds, and can charge 20% more by VOLUNTARILY labeling their products as GMO free. If all food products are forced to label themselves as GMO or GMO free, this price premium isn't so great because the cost of all food products goes up to pay for the labeling + FDA oversight. In addition, if you ran consumer marketing A/B testing to compare two products labeled GMO free vs GMO and GMO free vs no label, it might actually show that more GMO free products are sold when displayed against a no label product rather than a GMO label product. Finally, mandatory labeling for nutritional products hasn't been proven to dramatically affect health outcomes of a population, so it seems like the outcome of a GMO labeling requirement wouldn't be too different from that.