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Appetite. 2012 Oct;59(2):576-84. doi: 10.1016/j.appet.2012.07.009. Epub 2012 Jul 20.

Delay discounting and intake of ready-to-eat and away-from-home foods in overweight and obese women.

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  • 1Department of Preventive Medicine, Rush University Medical Center, 1700 W. Van Buren St., Chicago, IL 60612, USA. brad_appelhans@rush.edu

Erratum in

  • Appetite. 2013 Apr;63:147. Debiasse, Michelle A [corrected to DeBiasse, Michelle A].


A shift from home-prepared to away-from-home and ready-to-eat foods has occurred in recent decades, which has implications for obesity and health. This study tested whether delay discounting, a facet of impulsivity reflecting sensitivity to immediate reward, is associated with the frequency of consumption and typical amount consumed of home-prepared, away-from-home, and ready-to-eat foods among overweight and obese women. Seventy-eight participants completed a binary choice task assessing discounting of delayed monetary rewards. Nutrient analysis of weighed food records characterized dietary intake over seven consecutive days. Foods were categorized as home-prepared, away-from-home, or ready-to-eat by a registered dietitian from information provided by participants. Delay discounting was not associated with the frequency of consuming home-prepared, away-from-home, and ready-to-eat foods as reflected in the percentages of recorded foods or total energy intake from each category. However, once consuming away-from-home and ready-to-eat foods (but not home-prepared foods), impulsive women consumed more energy than less impulsive women. Exploratory analyses indicated that more impulsive women chose away-from-home foods with a higher energy density (kcal/g). Impulsivity was associated with the quantity of away-from-home and ready-to-eat foods consumed, but not the frequency of their consumption. Home food preparation may be critical to weight control for impulsive individuals.

Copyright © 2012 Elsevier Ltd. All rights reserved.

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