As a matter of fact, we do. I think in Roman literature we have some of the first examples of Bulemic behavior (binging and purging) and they had special places called vomitoriums specifically for that purpose; those that visited vomitoriums could eat until they were past full, go vomit and then come back and eat some more.
As for the Egyptians, mummys that are studied show skin folds consistent with obestity, arteries with a large amount of plaque, and advanced tooth decay. I'd say that whatever they were eating wasn't promoting a healthy body.
I find it a bit interesting that the Israelites wandering in the desert following the exodus weren't moaning about the lack of bread or honey...they were missing their leeks and garlic.