
The Chocolat Factory produced "The most honest chocolate tablet", in which packaging and product are very connected: the tablet is divided in bars of different dimensions reproducing the shape of an histogram; on the trasparent packaging it is specified the quantity of calories for each bar: a good way to put together food, packaging and infographics.
Reference:
http://www.chocolatfactory.com/producto.php?familia=2&subfamilia_id=0&id=75