Joe Raedle/Getty Images There's no industry standard size for
food and drink portions, so it's hard to compare a Big Gulp with
a McDonald's medium soda. There's no industry standard size for
food and drink portions, so it's hard to compare a Big Gulp with
a McDonald's medium soda. Joe Raedle/Getty Images When you go
into a restaurant, you probably give some thought to whether
you're ordering a small, regular or large sandwich. That makes
sense.With widening waistlines across the land, many of us want
to make a health-conscious choice. But are we really getting a
small portion when we order a small sandwich? Well, that
depends. University of Michigan marketing professor Aradhna
Krishna has studied how labels impact how much we eat. In one
experiment, she gave people cookies that were labeled either
medium or large, and then measured how much they ate. The catch?
The cookies were identical in size. What happened? You guessed
it. People ate more cookies when they were labeled "medium."
Rather than trust what the