Women who are motivated to eat and discount the future are more obese.

Published

Journal Article

Food reinforcement and delay discounting (DD) independently predict body mass index (BMI), but there is no research studying whether these variables interact to improve prediction of BMI.BMI, the relative reinforcing value of high (PMAXHED ) and low (PMAXLED ) energy dense food, and DD for $10 and $100 future rewards (DD10 , DD100 ) were measured in 199 adult females.PMAXHED (P = 0.017), DD10 (P = 0.003), and DD100 (P = 0.003) were independent predictors of BMI. The interaction of PMAXLED × DD10 (P = 0.033) and DD100 (P = 0.039), and PMAXHED × DD10 (P = 0.038) and DD100 (P = 0.045) increased the variance accounted for predicting BMI beyond the base model controlling for age, education, minority status, disinhibition, and dietary restraint. Based on the regression model, BMI differed by about 2 BMI units for low versus high food reinforcement, by about 3 BMI units for low versus high DD, and by about 4 BMI units for those high in PMAXHED , but low in DD versus high in PMAXHED and high in DD.Reducing DD may help prevent obesity and improve treatment of obesity in those who are high in food reinforcement.

Full Text

Duke Authors

Cited Authors

  • Epstein, LH; Jankowiak, N; Fletcher, KD; Carr, KA; Nederkoorn, C; Raynor, HA; Finkelstein, E

Published Date

  • June 2014

Published In

Volume / Issue

  • 22 / 6

Start / End Page

  • 1394 - 1399

PubMed ID

  • 24311480

Pubmed Central ID

  • 24311480

Electronic International Standard Serial Number (EISSN)

  • 1930-739X

International Standard Serial Number (ISSN)

  • 1930-7381

Digital Object Identifier (DOI)

  • 10.1002/oby.20661

Language

  • eng