How conceptualising obesity as a disease affects beliefs about weight, and associated weight stigma and clinical decision-making in health care

Joanne A. Rathbone*, Tegan Cruwys, Jolanda Jetten, Kasia Banas, Lillian Smyth, Kristen Murray

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

Objectives: This study empirically investigated how conceptualizing obesity as a disease (i.e., pathologizing obesity) affects beliefs about weight, and weight stigma and discrimination among health professionals. Design: An experiment that manipulated the pathologization of obesity was completed by a multi-nation sample of health professionals from Australia, UK, and USA (N = 365). Methods: Participants were randomly assigned to one of two conditions where they were asked to conceptualize obesity as a disease or not a disease; then presented with a hypothetical medical profile of a patient with obesity who was seeking care for migraines. We measured biogenetic causal beliefs about obesity, endorsement of weight as a heuristic for health, negative obesity stereotypes, and treatment decisions. Results: Participants in the disease (vs. non-disease) condition endorsed biogenetic causal beliefs more strongly and made more migraine-related treatment recommendations. No effect of the manipulation was found for the remaining outcomes. Biogenetic causal beliefs about obesity were associated with less weight stigma. Endorsing weight as a heuristic for health was associated with greater weight stigma and differential treatment recommendations focused more on the patient's weight and less on their migraines. Conclusions: Pathologizing obesity may reinforce biogenetic explanations for obesity. Evidence demonstrates complex associations between weight-related beliefs and weight stigma and discrimination. Biogenetic causal beliefs were associated with less weight stigma, while endorsing weight as a heuristic for health was associated with greater weight stigma and differential treatment. Further research is needed to inform policies that can promote health without perpetuating weight-based rejection in health care.

Original languageEnglish
JournalBritish Journal of Health Psychology
Early online date26 Sept 2022
DOIs
Publication statusE-pub ahead of print - 26 Sept 2022

Keywords / Materials (for Non-textual outputs)

  • weight stigma
  • weight-based discrimination
  • health care
  • health professionals
  • obesity as a disease

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