The average 25-34-year-old consumes twice as many sandwiches every year as does a 45-54-year-old, says Raphael Berger, at the Research Centre for the Study and Observation of Living Conditions.

ECONOMIST: Faster food replaces the leisurely lunch

Burger King, which usually tweets several times a week, typically does so to promote sales on chicken sandwiches, or to ask questions such as how many bites it takes to eat a chicken nugget.

NPR: Burger King Apologizes After Twitter Hacking

You can often find as many customers eating tuna melts (hot grilled cheese and tuna sandwiches) at 3 am as there are eating Monte Cristos (fried ham and cheese sandwiches sprinkled with powdered sugar) at 3 pm.

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