Featured Research

from universities, journals, and other organizations

Stated calories on menus of certain restaurants appear to be accurate overall

Date:
July 19, 2011
Source:
JAMA and Archives Journals
Summary:
An examination of the calorie content of food from about 40 fast-food and sit-down restaurants in 3 states finds that overall the stated calories of items on the menus of the restaurants are accurate, although there was substantial inaccuracy for some individual foods, with understated calorie figures for those items with lower calorie contents, according to a new study.

An examination of the calorie content of food from about 40 fast-food and sit-down restaurants in 3 states finds that overall the stated calories of items on the menus of the restaurants are accurate, although there was substantial inaccuracy for some individual foods, with understated calorie figures for those items with lower calorie contents, according to a study in the July 20 issue of JAMA.

"The prevalence of obesity in the United States increased from 14 percent of the population in 1976 to 34 percent in 2008, during which time both self-reported and per-capita energy intake increased. Reducing energy intake by self-monitoring or selecting foods with lower energy contents is widely recommended for the prevention and treatment of obesity. However, the feasibility of reducing energy intake using these approaches depends in part on the availability of accurate information on the energy contents of different foods," according to background information in the article. "Foods purchased in restaurants provide approximately 35 percent of the daily energy intake in U.S. individuals but the accuracy of the energy contents listed for these foods is unknown."

Lorien E. Urban, Ph.D., of Tufts University, Boston, and colleagues conducted a study to evaluate the overall accuracy of restaurant-stated energy contents and examine factors associated with the accuracy of stated energy contents of individual food items. Food from 42 restaurants, comprising 269 total food items and 242 unique foods, were ordered as a take-out meal and subsequently analyzed at a laboratory for caloric content. The restaurants and foods were randomly selected from quick-serve and sit-down restaurants in Massachusetts, Arkansas, and Indiana between January and June 2010.

Of the 269 food items, 108 (40 percent) had measured energy contents at least 10 kcal (calories)/portion higher than the stated energy contents and 141 (52 percent) had measured energy contents at least 10 kcal/portion lower than the stated energy contents. Nineteen percent of foods contained greater than 100 kcal/portion more than the stated energy contents. The researchers found significantly greater variability in the discrepancy between the stated and measured energy contents in all foods from sit-down restaurants compared with all foods from quick-serve restaurants.

In an analysis of 10 percent of foods (n= 17) from both quick-serve and sit-down restaurants with the highest positive discrepancy between measured and stated energy contents, these foods had an average difference between measured and stated energy contents of 289 kcal/portion, and there was a similar discrepancy in a subsequent re-analysis of 13 of these foods (258 kcal/portion). "Considering the first and second sampling of the 13 foods together, the 26 foods had a mean [average] measured energy content of 273 kcal/portion higher than the stated energy content, representing a 48 percent discrepancy," the authors write.

"In addition, foods with lower stated energy contents contained higher measured energy contents than stated, while foods with higher stated energy contents contained lower measured energy contents."

The authors suggest that a reason why individual foods have inaccurate stated energy contents (especially in sit-down restaurants) may be poor quality control of portion size.

"The results of this study have implications for pending implementation of new legislation requiring more restaurants to document the energy content of their menu items," they write. "Although our study showed that stated energy contents in restaurants are relatively accurate on average, thus supporting greater availability of this information, projected benefits for preventing weight gain and facilitating weight loss are likely to be reduced if restaurant foods with lower stated energy contents provide more energy content than stated. Additional portion control in restaurants has the potential to facilitate individual efforts to reduce energy intake and to help resolve the national obesity epidemic."

Editorial: Calories Count -- But Can Consumers Count on Them?

The value of the law regarding labeling of caloric content can be enhanced considerably through effective public health education campaigns to facilitate its use, writes Linda Van Horn, Ph.D., R.D., of the Northwestern University Feinberg School of Medicine, Chicago, in an accompanying editorial.

"Primary prevention efforts could be markedly improved through better parental awareness of the caloric needs of their children and, ideally, the capacity to role model their own energy balance. Limited data document that adult consumers are often unable to estimate caloric differences across unlabeled food items; however, among those who read posted caloric contents, reduced caloric intake occurs. Prevention and treatment of overweight and obesity require change in the environment as well as in personal behavior."

"Just as balancing a budget can prevent debt, balancing caloric intake with output can prevent added pounds. However, U.S. residents seem to be struggling with both balancing acts. New, innovative, and effective approaches to teaching about energy balance and caloric control are greatly needed."


Story Source:

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


Journal References:

  1. L. E. Urban, M. A. McCrory, G. E. Dallal, S. K. Das, E. Saltzman, J. L. Weber, S. B. Roberts. Accuracy of Stated Energy Contents of Restaurant Foods. JAMA: The Journal of the American Medical Association, 2011; 306 (3): 287 DOI: 10.1001/jama.2011.993
  2. L. Van Horn. Calories Count: But Can Consumers Count on Them? JAMA: The Journal of the American Medical Association, 2011; 306 (3): 315 DOI: 10.1001/jama.2011.1022

Cite This Page:

JAMA and Archives Journals. "Stated calories on menus of certain restaurants appear to be accurate overall." ScienceDaily. ScienceDaily, 19 July 2011. <www.sciencedaily.com/releases/2011/07/110719161538.htm>.
JAMA and Archives Journals. (2011, July 19). Stated calories on menus of certain restaurants appear to be accurate overall. ScienceDaily. Retrieved July 25, 2014 from www.sciencedaily.com/releases/2011/07/110719161538.htm
JAMA and Archives Journals. "Stated calories on menus of certain restaurants appear to be accurate overall." ScienceDaily. www.sciencedaily.com/releases/2011/07/110719161538.htm (accessed July 25, 2014).

Share This




More Science & Society News

Friday, July 25, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Mobile App Gives Tour of Battle of Atlanta Sites

Mobile App Gives Tour of Battle of Atlanta Sites

AP (July 25, 2014) Emory University's Center for Digital Scholarship has launched a self-guided mobile tour app to coincide with the 150th anniversary of the Civil War's Battle of Atlanta. (July 25) Video provided by AP
Powered by NewsLook.com
Beatings and Addiction: Pakistan Drug 'clinic' Tortures Patients

Beatings and Addiction: Pakistan Drug 'clinic' Tortures Patients

AFP (July 24, 2014) A so-called drugs rehab 'clinic' is closed down in Pakistan after police find scores of ‘patients’ chained up alleging serial abuse. Duration 03:05 Video provided by AFP
Powered by NewsLook.com
Too Few Teens Receiving HPV Vaccination, CDC Says

Too Few Teens Receiving HPV Vaccination, CDC Says

Newsy (July 24, 2014) The Centers for Disease Control and Prevention is blaming doctors for the low number of children being vaccinated for HPV. Video provided by Newsy
Powered by NewsLook.com
New Painkiller Designed To Discourage Abuse: Will It Work?

New Painkiller Designed To Discourage Abuse: Will It Work?

Newsy (July 24, 2014) The FDA approved Targiniq ER on Wednesday, a painkiller designed to keep users from abusing it. Like any new medication, however, it has doubters. Video provided by Newsy
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:

More Coverage


Lower Calorie Foods Purchased in Restaurants May Contain More Calories Than Listed, New Study Suggests

July 20, 2011 Disclosing the calories in restaurant foods to customers holds promise as a strategy to lower the nation's obesity rate. However, a new study of food items from national chain restaurants found ... read more
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