title: Delay discounting and intake of ready-to-eat and away-from-home foods in overweight and obese women.
abstract: 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.
authors: Department of Preventive Medicine, Rush University Medical Center, 1700 W. Van Buren St., Chicago, IL 60612, USA. brad_appelhans@rush.edu
authors: Bradley M
authors: BM
authors: Appelhans
authors: Molly E
authors: ME
authors: Waring
authors: Kristin L
authors: KL
authors: Schneider
authors: Sherry L
authors: SL
authors: Pagoto
authors: Michelle A
authors: MA
authors: DeBiasse
authors: Michelle A
authors: MA
authors: Debiasse
authors: Matthew C
authors: MC
authors: Whited
authors: Elizabeth B
authors: EB
authors: Lynch
mesh_terms: D000293:Adolescent; D000328:Adult; D002755:Choice Behavior; D003430:Cross-Sectional Studies; D002149:Energy Intake; D057140:Fast Foods; D005247:Feeding Behavior / Q000523:psychology*; D005260:Female; D005518:Food Preferences / Q000523:psychology*; D006801:Humans; D016014:Linear Models; D008875:Middle Aged; D009765:Obesity / Q000523:psychology; D050177:Overweight / Q000523:psychology; D055815:Young Adult