Remember the old Alka-Selter commercial, “I can’t believe I ate the whole thing!” Well, I used to think, “Then why did you eat the whole thing, you big dummy!”

Now there’s an official scientific answer. You ate the whole thing BECAUSE IT WAS THERE!

"Whatever size a banana is, that's what you eat, a small banana or a big banana," says Andrew Geier of the University of Pennsylvania. And "whatever's served on your plate, it just seems locked in our heads: that's a meal."

Study: Surroundings Play Key Role in Diet - washingtonpost.com

People take cues from their surroundings on eating: Study – The Hindu