Did anybody see this article, this is really, really cool (it actually has nothing to do with religion, it's more about art history but posting it here just in case it seems most appropriate here).
This is more of Brian Wansink's work. He's the Cornell food behavior scientist that wrote "Mindless Eating". He's looked at depictions of the Last Supper for the past 2,000 years and find that the portion sizes have increased by 69%!
You gotta read this yourself, this is so cool--http://www.telegraph.co.uk/health/healthnews/7504482/Supersized-Last-Supper-mirrors-increases-in-appetites-and-food-portions.html