"There are no impediments -- economic, practical or legal -- to AB accurately labeling its products to reflect their true alcohol content, " the 18-page lawsuit said.
The burger giant corrected a labeling error Wednesday, acknowledging that the trans fat content of its large fries was one-third higher--8 grams rather than 6 grams.
Two of the biggest supermarkets in the U.K., Tesco and Wm Morrison Supermarkets , have refused to adopt a government-proposed food labeling system which uses a "traffic light" design to indicate nutritional content.