Accuracy of estimation of large food portions

Lisa Harnack, Lyn Steffen, Donna K. Arnett, Shujun Gao, Russell V. Luepker

Research output: Contribution to journalArticlepeer-review

53 Scopus citations


To examine accuracy of reporting of large food portions, 50 adults were invited to eat a restaurant meal that included a hamburger patty, french fries, and ice cream. After eating, participants were asked to estimate the amount of food consumed using commonly used and larger-sized food models as a guide. With the use of commonly used models, underreporting was evident for all three foods. For example, the amount of hamburger patty consumed was on average 4.01 oz, although the average amount reported was 3.04 oz (P<.05). When larger-sized models were used, the amount reported more closely matched the amount consumed, although underreporting persisted for the hamburger patty and french fries. In summary, significant underreporting of large food portions may result when commonly used food models are used to assist individuals in reporting food portions.

Original languageEnglish
Pages (from-to)804-806
Number of pages3
JournalJournal of the American Dietetic Association
Issue number5
StatePublished - May 2004

Bibliographical note

Copyright 2012 Elsevier B.V., All rights reserved.

ASJC Scopus subject areas

  • Food Science
  • Nutrition and Dietetics


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