Obese people feel full sooner than people of normal weight

April 8, 2014

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 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 and those who are obese. In their study (*), the researchers conclude that obese people 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 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, consumed around 140 kcal more before they felt full.

Eat slowly

"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 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.

Explore further: Slower-paced meal reduces hunger but affects calorie consumption differently

More information: 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

Related Stories

Slower-paced meal reduces hunger but affects calorie consumption differently

December 30, 2013
Obesity rates in the United States increased from 14.5% of the population in 1971-1974 to 35.9% of the population in 2009-2010. It's believed that one contributing factor to expanding waistlines is the reported increase in ...

Attitude during pregnancy affects weight gain

February 26, 2014
Overweight or obese women with the mentality that they are "eating for two" are more likely to experience excessive weight gain while pregnant, according to researchers at Penn State College of Medicine.

Eating little and often not as important as counting calories for weight loss

March 27, 2014
(Medical Xpress)—Eating small but frequent meals is often recommended for overweight adults trying to lose weight. However, research presented today at the Society for Endocrinology annual BES conference suggests that following ...

Do diet drinks make you eat more?

January 16, 2014
(HealthDay)—Overweight adults often turn to diet beverages to help them slim down, but this tactic might backfire, new research suggests.

Obese stomachs tell us diets are doomed to fail

September 16, 2013
The way the stomach detects and tells our brains how full we are becomes damaged in obese people but does not return to normal once they lose weight, according to new research from the University of Adelaide.

Smoking may dull obese women's ability to taste fat and sugar

April 3, 2014
Cigarette smoking among obese women appears to interfere with their ability to taste fats and sweets, a new study shows. Despite craving high-fat, sugary foods, these women were less likely than others to perceive these tastes, ...

Recommended for you

Are sugary drink interventions changing people's behaviour?

July 19, 2017
An evaluation of efforts designed to reduce how many sugary drinks we consume shows some success in changing younger people's habits but warns they cannot be the only way to cut consumption.

Young adult obesity: A neglected, yet essential focus to reverse the obesity epidemic

July 18, 2017
The overall burden of the U.S. obesity epidemic continues to require new thinking. Prevention of obesity in young adults, while largely ignored as a target for prevention and study, will be critical to reversing the epidemic, ...

Weight gain from early to middle adulthood may increase risk of major chronic diseases

July 18, 2017
Cumulative weight gain over the course of early and middle adulthood may increase health risks later in life, according to a new study led by researchers from Harvard T.H. Chan School of Public Health. They found that, compared ...

Study finds children carry implicit bias towards peers who are overweight

June 23, 2017
Even children as young as 9 years old can carry a prejudice against their peers who are overweight, according to a new study led by Duke Health researchers. They might not even realize they feel this way.

Mother's obesity boosts risk for major birth defects: study

June 15, 2017
Children of obese women are more likely to be afflicted by major birth defects, including malformations of the heart and genitals, according to a study published on Thursday.

New study finds more than 2 billion people overweight or obese

June 12, 2017
Globally, more than 2 billion children and adults suffer from health problems related to being overweight or obese, and an increasing percentage of people die from these health conditions, according to a new study.

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.