The nutrition labels are required by the FDA, I think. There's a good breakdown on their site. http://www.fda.gov/Food/IngredientsPackagingLabeling/LabelingNu

The nutrition labels are required by the FDA, I think. There's a good breakdown on their site. http://www.fda.gov/Food/IngredientsPackagingLabeling/LabelingNutrition/ucm274593.htm http://www.fda.gov/Food/IngredientsPackagingLabeling/Labelin... I think any requirement for this would have to come from them. Of course there's probably a grocery industry group that would also have the power to get something like this set up if it were somehow desired or otherwise profitable.