Again, the riddle: Entrees have increased in size by more than two-thirds and bread portions by almost a quarter in what realm according to recent scholarship? (Hint: Think Da Vinci) The Answer: Depictions of the Last Supper. "Brian and Craig Wansink teamed up to analyze the amount of food depicted in 52 of the best-known paintings of the Last Supper... Overall, the main courses depicted in the paintings grew by 69%, plate size by 66%, and bread size by 23%." http://www.mindlesseating.org/lastsupper/