Following a comment about Prof. Brian Wansink in another thread I was just reading this item from which I quote.

Over the past several weeks they have sent subjects, some who have exercised and some who have not, through an unlimited buffet line. By measuring the difference between how much and what people eat depending on whether they have exercised, Dr. Wansink hopes to prove that even moderate exercise makes us think we are entitled to many more calories than we actually burned.

“Geez Louise, you can’t believe how much people eat to overcompensate,” he said.