It mentions differences between food labelling laws. US = per serving and % of 'Daily Value' UK (and EU) = per serving and per <standard amount> (e.g. 100 g)
http://www.cfsan.fda.gov/~dms/foodlab.html http://www.foodstandards.gov.uk/news/newsarchive/nutritionlabelreport Both regions have noted performance failings of food labels and are actively considering changes.
