An interesting factsheet from the Lutherans and the Canadian Foodgrains Bank that outlines what a ration of food for an individual would look like in a refugee camp or at a feeding station.  It also includes the price of providing this amount of food.   http://www.clwr.org/Get-Involved/documents/RationMealhandout_EastAfrica.pdf

I think measuring out these portions and presenting them  would be a useful comparsion to what we expect to eat every day.

Hope this is useful! VM