Obese people take less time to feel full than those of normal weight. Despite this, they consume more calories. A faster speed of eating could play an important role in obesity, according to a study funded by the Swiss National Science Foundation.
The number of people in the world who are obese has doubled since 1980. Attempts to halt the progress of this pandemic are reliant on more accurate knowledge of how obesity occurs.
This is what a research group led by Christoph Beglinger at the University Hospital in Basel aimed to find out by comparing feelings of satiation among people of normal weight and those who are obese. In their study (*), the researchers conclude that obese people eat faster. The obese take less time to feel full than people of normal weight, and although they spend less time eating, they consume more calories.
Time to satiation
Christoph Beglinger and his team asked twenty people of normal weight and twenty people who were obese to consume a nutritional drink in the morning, on an empty stomach. The test subjects were allowed to drink as much as they wanted, and as quickly as they wanted. Every three minutes they were required to indicate how full they felt.
On average, the obese people reported feeling full after just ten minutes, four minutes earlier than those of normal weight. However, during this ten minute period they consumed on average approximately 85 kcal per minute, compared with around 50 kcal per minute consumed by the test subjects of normal weight. Therefore, despite the shorter period of consumption, obese people consumed around 140 kcal more before they felt full.
“Eating even just 100 kcal a day more than the recommended amount can cause weight gain,” write the researchers in their study. “For this reason, the speed of eating is a potential contributing factor in obesity.” Although making changes to people’s eating habits is difficult, the new results indicate that treatments focussing on such approaches are correct. “Eating slowly is not only healthy, but it should also help you lose weight,” explains Beglinger.
(*) Anne C. Meyer-Gerspach, Bettina Wölnerhanssen, Bettina Beglinger, Falk Nessenius, Marylin Napitupulu, Felix H. Schulte, Robert E. Steinert and Christoph Beglinger (2014). Gastric and intestinal satiation in obese and normal weight healthy people. Physiology & Behavior online. doi: 10.1016/j.physbeh.2014.02.043
(Available to journalists as a PDF file from the SNSF at the following e-mail address: email@example.com)
Prof Christoph Beglinger
Department of Biomedicine
University Hospital Basel
CH - 4031 Basel
Phone: +41 61 328 61 75
Media - Abteilung Kommunikation | idw - Informationsdienst Wissenschaft
Memories Influence Choice of Food
22.05.2015 | Universität Basel
Memories Influence The Decision in Choosing Certain Foods
21.05.2015 | Universitätsklinikum Hamburg-Eppendorf
Physicists have developed an innovative method that could enable the efficient use of nanocomponents in electronic circuits. To achieve this, they have developed a layout in which a nanocomponent is connected to two electrical conductors, which uncouple the electrical signal in a highly efficient manner. The scientists at the Department of Physics and the Swiss Nanoscience Institute at the University of Basel have published their results in the scientific journal “Nature Communications” together with their colleagues from ETH Zurich.
Electronic components are becoming smaller and smaller. Components measuring just a few nanometers – the size of around ten atoms – are already being produced...
Development and implementation of an advanced automobile parking navigation platform for parking services
To fulfill the requirements of the industry, PolyU researchers developed the Advanced Automobile Parking Navigation Platform, which includes smart devices,...
The world's first electrical car and passenger ferry powered by batteries has entered service in Norway. The ferry only uses 150 kWh per route, which...
On Tuesday, 19 May 2015 the research icebreaker Polarstern will leave its home port in Bremerhaven, setting a course for the Arctic. Led by Dr Ilka Peeken from the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI) a team of 53 researchers from 11 countries will investigate the effects of climate change in the Arctic, from the surface ice floes down to the seafloor.
RV Polarstern will enter the sea-ice zone north of Spitsbergen. Covering two shallow regions on their way to deeper waters, the scientists on board will focus...
Nanoengineers at the University of California, San Diego developed a gel filled with toxin-absorbing nanosponges that could lead to an effective treatment for skin and wound infections caused by MRSA (methicillin-resistant Staphylococcus aureus), an antibiotic-resistant bacteria. This "nanosponge-hydrogel" minimized the growth of skin lesions on mice infected with MRSA - without the use of antibiotics. The researchers recently published their findings online in Advanced Materials.
To make the nanosponge-hydrogel, the team mixed nanosponges, which are nanoparticles that absorb dangerous toxins produced by MRSA, E. coli and other...
20.05.2015 | Event News
18.05.2015 | Event News
12.05.2015 | Event News
22.05.2015 | Materials Sciences
22.05.2015 | Information Technology
22.05.2015 | Materials Sciences