I went looking for the Roman equivalent & found some stuff, but got distracted by a comment on some something-inside-something or other disscussion:
"Above a certain point you need to stop counting in grahams and switch to kilograms or pounds. That thing has 15 pounds of fat in it and as many calories as two and a half gallons of gasoline. In 2,000 years this will be cited as symptomatic of the downfall of the empire.
posted by ChrisHartley at 6:38 AM on November 24, 2010 [2 favorites]"
(applies to this, I believe)