My cursor came across two revealing graphical representations of how we eat. The  first one is from the food service warehouse (a restaurant-equipment supplier) and compares the top 20 and bottom 20 in two categories: calories consumed and income spent on food. 

Of course, Americans consume more calories per day, on average, than anyone on the planet. But comically/perversely, we spend the least per person, on average!

Another point to take in from the graphic is that, on average, every citizen in each of the 20 most food-consuming nations scarfs more than the recommended daily allowance of calories. It is less surprising that the obverse is also true: on average, each of the 20 least food-consuming nations are all below the RDA.

Source: Frugal dad