Navigation Links
Impact of portion size on overeating is hard to overcome
Date:4/16/2013

People given large servings of food eat more than those given smaller servings, even after they have been taught about the impact of portion size on consumption, research from the University of New South Wales shows.

Learning how to engage in mindful - rather than mindless eating also did not decrease food intake by a significant amount in those given large servings.

The study, published in the Journal of Health Psychology, highlights the need to find new ways to reduce the effect of portion size on overeating.

"If no effective approaches are found, it may be necessary to develop policy-related changes to provide a healthier food environment for people," said Dr

Lenny Vartanian, a senior lecturer in the UNSW School of Psychology and an author of the paper.

Portion sizes in restaurant and at home have increased dramatically since the early 1970s, and are thought to have contributed to rising obesity levels.

"Studies have consistently shown that increases in portion sizes for a wide range of foods and beverages result in increased energy intake. And the impact is not affected by factors such as hunger or the taste of the food," Dr Vartanian said.

The team's study of 96 women is the first to examine the effectiveness of educating people about this phenomenon. Participants were served either a 350 gram portion of macaroni pasta with tomato sauce for lunch, or a 600 gram portion.

Those in the education group were given a brochure about how external factors, such as mood, advertising, portion size, and social and cultural influences can contribute to overeating, and then asked to write about how these factors had influenced their food intake in the past.

Those in the mindfulness group were also taught how to focus on the internal sensations such as the taste of food and feelings of hunger and satiety, before they were offered the pasta.

"Neither of these brief exercises reduced the effects of portion size. Overall, participants in the larger portion group consumed about a third more pasta 69 grams than those in the smaller portion group, " Dr Vartanian said.

This difference amounts to about 87 kilocalories, or 365 kilojoules, of extra energy.


'/>"/>

Contact: Deborah Smith
deborah.smith@unsw.edu.au
61-293-857-307
University of New South Wales
Source:Eurekalert

Related medicine news :

1. Dr. Oz Misses Key Point On Mercury Amalgam’s Impact On Human Health
2. Asia-Pacific Seasonal Influenza Vaccine Market to 2018 - Positive Impact of Government Support Offset by Limited Production Capacity : MarketResearchReports.biz
3. Narconon International Pledges Wholehearted Support for Rx Drug Abuse Summit Cause: “Make an Impact”
4. For the Fourth Year in a row, Blue Springs Ford Donates to Impact Ministries in Eastern Jackson County
5. Gynecomastia has psychological impact on adolescent boys, reports plastic and reconstructive surgery
6. Sharps injuries have major health and cost impact for surgeons
7. Grief: Even Jesus Grieved; New Site to Focus on the Grief Attacks Impacting 220 Million Worldwide
8. Nouvelle Research, Inc. studies show chronic inflammation reduction through NRF2 Upregulation and NF-kB Downregulation, Cur-OST® Supplements Positively Impact Health
9. Studies advance knowledge of HIV impact on hepatitis C infection and genes that may thwart HCV
10. New report analyzes potential impact of sequestration on CHCs and underserved communities
11. Adult sleepwalking is serious condition that impacts health-related quality of life
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/3/2016)... Tysons Corner, VA (PRWEB) , ... May 03, ... ... a leading provider of innovative information technology (IT) solutions and digital consulting services ... its Enterprise Information Technology Services (EITS) Indefinite Delivery / Indefinite Quantity (ID/IQ) contract ...
(Date:5/3/2016)... ... May 03, 2016 , ... ... solutions, today announced the new SecureAccess feature for its CelestixEdge solution. CelestixEdge ... release will enable organizations to get the DirectAccess user experience on unsupported ...
(Date:5/3/2016)... ... May 03, 2016 , ... Dave Newberry, broker/owner of Newberry Realty, recently ... (PICC) annual fundraiser luncheon on Friday, May 20. “We have raised over $1,000 for ... drug abuse,” said Newberry. , PICC is a local Kent, WA, clinic that cares ...
(Date:5/2/2016)... ... May 02, 2016 , ... Those who may ... can find some useful information in a new video released by Serenity Recovery, ... which can be viewed on the Serenity Recovery YouTube channel, examines various treatment ...
(Date:5/2/2016)... ... May 02, 2016 , ... ... of innovation by partnering with college students at University of Colorado in Boulder ... senior level advertising campaigns class in the School of Journalism, who selected Beanfields ...
Breaking Medicine News(10 mins):
(Date:5/3/2016)... -- Intec Pharma Ltd. (NASDAQ: ... announced the appointment of Pnina Strauss-Levy as ... Strauss-Levy has 15 years of experience in clinical research ... record, having supported the advancement of several products through ... the United States and ...
(Date:5/3/2016)... , May 3, 2016 ... bekannt, dass sie einen entscheidenden Meilenstein durch ... Ein Aufruf zum Handeln, um Patientenresultate  bei ... trägt zu Fortschritten im Verständnis der Hepatischen ... ein Bewusstsein für Hepatische Enzephalopathie in der ...
(Date:5/2/2016)... NEW YORK , May 2, 2016 /PRNewswire/ ... Series B financing of Graybug Vision, Inc. Graybug ... to developing therapies that may transform care for ... and glaucoma.  Graybug Vision,s technology was first developed ... out into a startup venture. ...
Breaking Medicine Technology: