Study: Over-eating related to portion size

July 6, 2006

A University of Pennsylvania study suggested Thursday that people will eat any size food portion that is offered to them.

The authors of the study said people assume the portion given to them, no matter what the size, is appropriate due to a "culturally induced" norm, the Chicago Sun-Times reported Thursday.

Researchers offered free Tootsie Rolls, M&Ms and soft pretzels in public places and noted the amounts people consumed. The experiment was repeated, offering different sized portions of the candy and cut up pretzels.

"They ended up consuming considerably more when there was a larger size spoon or (product)," said Andrew Geier, the study's lead author and a doctoral candidate in experimental psychology at the University of Pennsylvania.

The study, published in the Psychological Science journal, suggested that portion control could be the key to controlling overeating in the United States.

"It is our belief that a small percentage change in portion size would change consumption by the same percentage," the study's authors wrote.

Copyright 2006 by United Press International

Explore further: What is the asteroid belt?

Related Stories

What is the asteroid belt?

August 24, 2015

In the 18th century, observations made of all the known planets (Mercury, Venus, Earth, Mars, Jupiter and Saturn) led astronomers to discern a pattern in their orbits. Eventually, this led to the Titius–Bode law, which ...

Study takes close look at formidable camel spider jaws

June 22, 2015

For the first time, researchers have created a visual atlas and dictionary of terms for the many strange features on the fearsome-looking jaws of a little known group of arachnids. Called camel spiders, baardskeerders [beard-cutters], ...

Scientists explore mash-up of vacuum tube and MOSFET

June 25, 2014

Thumb-size vacuum tubes that amplified signals in radio and television sets in the first half of the 20th century might seem nothing like the metal-oxide semiconductor field-effect transistors (MOSFETs) that dazzle us with ...

Recommended for you

Long-sought chiral anomaly detected in crystalline material

September 3, 2015

A study by Princeton researchers presents evidence for a long-sought phenomenon—first theorized in the 1960s and predicted to be found in crystals in 1983—called the "chiral anomaly" in a metallic compound of sodium and ...

Making nanowires from protein and DNA

September 3, 2015

The ability to custom design biological materials such as protein and DNA opens up technological possibilities that were unimaginable just a few decades ago. For example, synthetic structures made of DNA could one day be ...

0 comments

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.