In the other direction, I'd like to see food labels list "miles" instead of "calories". I'll look at something that's 250 (kilo)calories and say to myself "that

In the other direction, I'd like to see food labels list "miles" instead of "calories". I'll look at something that's 250 (kilo)calories and say to myself "that's an extra 2.5 miles I have to run" and dissuade myself from eating it. The amount of energy in even a small amount of food is rather remarkable.