Featured Research

from universities, journals, and other organizations

Slower-paced meal reduces hunger but affects calorie consumption differently

Date:
December 30, 2013
Source:
Elsevier
Summary:
According to a newly published study, eating at a slower rate reduces hunger, but affects calorie consumption differently in normal and overweight/obese people.

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 energy intake. Research suggests that the ability to control energy intake may be affected by the speed at which we eat, and a high eating rate may impair the relationship between the sensory signals and processes that regulate how much we eat.

In order to learn more about the relationship between eating speed and energy intake, a team of researchers in the Department of Kinesiology at Texas Christian University took a look at how eating speed affects calories consumed during a meal in both normal weight subjects as well as overweight or obese subjects. The investigators also collected data on feelings of hunger and fullness before and after the fast-paced and slow-paced meals and water consumption during the meals. Their results are published in the Journal of the Academy of Nutrition and Dietetics.

While previous studies have reviewed the relationship between eating speed and body weight, most of those studies were conducted with normal-weight individuals. In this new study, investigators asked a group of normal-weight subjects and a group of overweight or obese subjects to consume two meals in a controlled environment. All subjects ate one meal at a slow speed, for which they were instructed to imagine that they had no time constraints, take small bites, chew thoroughly, and pause and put the spoon down between bites, and a second meal at a fast speed, for which they were instructed to imagine that they had a time constraint, take large bites, chew quickly, and not pause and put the spoon down.

At the conclusion of the study, researchers found that only normal-weight subjects had a statistically significant reduction in caloric consumption during the slow compared to the fast meal: 88 kcal less for the normal weight group, versus only 58 kcal less for the overweight or obese group.

"Slowing the speed of eating led to a significant reduction in energy intake in the normal-weight group, but not in the overweight or obese group. A lack of statistical significance in the overweight and obese group may be partly due to the fact that they consumed less food during both eating conditions compared to the normal-weight subjects," explained lead author Meena Shah, PhD, professor in the Department of Kinesiology at Texas Christian University. "It is possible that the overweight and obese subjects felt more self-conscious, and thus ate less during the study."

Despite the differences in caloric consumption between the normal-weight and overweight and obese subjects, the study found some similarities. Both groups felt less hungry later on after the slow meal than after the fast meal. "In both groups, ratings of hunger were significantly lower at 60 minutes from when the meal began during the slow compared to the fast eating condition," added Dr. Shah. "These results indicate that greater hunger suppression among both groups could be expected from a meal that is consumed more slowly."

Also, both the normal weight and overweight or obese groups consumed more water during the slow meal. During the fast condition, participants across the study only consumed 9 ounces of water, but during the slow condition, that amount rose to 12 ounces. "Water consumption was higher during the slow compared to the fast eating condition by 27% in the normal weight and 33% in the overweight or obese group. The higher water intake during the slow eating condition probably caused stomach distention and may have affected food consumption," said Dr. Shah.

With obesity rates continuing to rise among the adult population in the United States, information about how different weight groups approach and consume food will be helpful in crafting strategies to lower energy intake, but for now, Dr. Shah suggested, "Slowing the speed of eating may help to lower energy intake and suppress hunger levels and may even enhance the enjoyment of a meal."


Story Source:

The above story is based on materials provided by Elsevier. Note: Materials may be edited for content and length.


Journal Reference:

  1. Meena Shah, PhD; Jennifer Copeland, MS; Lyn Dart, PhD, RD, LD; Beverley Adams Huet, MS; Ashlei James, MS; Debbie Rhea, EdD. Slower Eating Speed Lowers Energy Intake in Normal-Weight but Not Overweight/Obese Subjects. Journal of the Academy of Nutrition and Dietetics, December 2013

Cite This Page:

Elsevier. "Slower-paced meal reduces hunger but affects calorie consumption differently." ScienceDaily. ScienceDaily, 30 December 2013. <www.sciencedaily.com/releases/2013/12/131230101444.htm>.
Elsevier. (2013, December 30). Slower-paced meal reduces hunger but affects calorie consumption differently. ScienceDaily. Retrieved August 1, 2014 from www.sciencedaily.com/releases/2013/12/131230101444.htm
Elsevier. "Slower-paced meal reduces hunger but affects calorie consumption differently." ScienceDaily. www.sciencedaily.com/releases/2013/12/131230101444.htm (accessed August 1, 2014).

Share This




More Health & Medicine News

Friday, August 1, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

House Republicans Vote to Sue Obama Over Healthcare Law

House Republicans Vote to Sue Obama Over Healthcare Law

Reuters - US Online Video (July 31, 2014) The Republican-led House of Representatives votes to sue President Obama, accusing him of overstepping his executive authority in making changes to the Affordable Care Act. Mana Rabiee reports. Video provided by Reuters
Powered by NewsLook.com
Despite Health Questions, E-Cigs Are Beneficial: Study

Despite Health Questions, E-Cigs Are Beneficial: Study

Newsy (July 31, 2014) Citing 81 previous studies, new research out of London suggests the benefits of smoking e-cigarettes instead of regular ones outweighs the risks. Video provided by Newsy
Powered by NewsLook.com
Dangerous Bacteria Kills One in Florida

Dangerous Bacteria Kills One in Florida

AP (July 31, 2014) Sarasota County, Florida health officials have issued a warning against eating raw oysters and exposing open wounds to coastal and inland waters after a dangerous bacteria killed one person and made another sick. (July 31) Video provided by AP
Powered by NewsLook.com
Health Insurers' Profits Slide

Health Insurers' Profits Slide

Reuters - Business Video Online (July 30, 2014) Obamacare-related costs were said to be behind the profit plunge at Wellpoint and Humana, but Wellpoint sees the new exchanges boosting its earnings for the full year. Fred Katayama reports. Video provided by Reuters
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins