Food labeling introduces unfair prejudice against certain products  Requiring companies to label their products a certain way might unfairly influence the sales of this product. Let us observe this point on the example of GMOs in food.  For instance, a study investigated the influence of labeling a cornflakes product with different variations on the theme of containing GMOs. The packaging might say that the product contained "USDA approved genetically modified corn" or "may contain genetically modified corn", basically stating the same thing. Yet the first product was evaluated much more favorably than the second, with a 6% price perception difference. [1]  Considering that GMOs are considered safe by the health authorities, [2] it would be unfair to prejudice against these products by specifically targeting them, when they pose no risk to health.  [1] Onyango, B. M., et al., U.S. Consumers' Willingness to Pay for Food Labeled 'Genetically Modified', published in October 2006,  , accessed 9/15/2011  [2] WHO, 20 questions on genetically modified foods, published 12/10/2010,  , accessed 9/15/2011