Planning versus action: Different decision-making processes predict plans to change one's diet versus actual dietary behavior

J Health Psychol. 2015 May;20(5):556-68. doi: 10.1177/1359105315576605.

Abstract

Most health decision-making models posit that deciding to engage in a health behavior involves forming a behavioral intention which then leads to actual behavior. However, behavioral intentions and actual behavior may not be functionally equivalent. Two studies examined whether decision-making factors predicting dietary behaviors were the same as or distinct from those predicting intentions. Actual dietary behavior was proximally predicted by affective associations with the behavior. By contrast, behavioral intentions were predicted by cognitive beliefs about behaviors, with no contribution of affective associations. This dissociation has implications for understanding individual regulation of health behaviors and for behavior change interventions.

Keywords: affect; diet; eating; eating behavior; emotions; health behavior.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Attitude to Health
  • Decision Making*
  • Diet / psychology*
  • Diet Surveys
  • Feeding Behavior / psychology*
  • Female
  • Humans
  • Intention*
  • Male
  • Surveys and Questionnaires
  • Young Adult