The effect of GLP-1 receptor agonist use on negative evaluations of women with higher and lower body weight
Authors' conclusion
This timely study provides evidence that people with larger and smaller bodies alike are at-risk for being judged for using GLP-1 RAs due to beliefs that these medications are a shortcut. Findings also demonstrate novel reactions related to egotism when weight loss is achieved with pharmacological interventions. PRE-REGISTRATION AND DATA: osf.io/xme4w.
Study context
- Population
- U.S. adults (Mage = 37.8, SD = 13) reading about a woman who lost weightrandomly assigned
- Participants
- 357 adults
- Comparison
- Weight loss with GLP-1 RA vs diet/exercise, in a lean woman vs a woman with obesity
- Primary endpoint
- Endorsement of negative weight-related stereotypes and egocentric attitudes toward the woman
Methodological details2 × 2 experimental design, pre-registered
- 2 × 2 experimental design
- Pre-registered
Primary result
As reported in the abstract
Negative evaluations and egocentric impressions
- Negative evaluations and egocentric impressions stronger toward a woman who lost weight with a GLP-1 RA vs diet/exercise
Further findings
Mediation via weight loss shortcut beliefs
- GLP-1 RA led to stronger negative evaluations through higher shortcut beliefs irrespective of body size
- GLP-1 RA led to higher egocentric impressions through higher shortcut beliefs; effect stronger for a lean woman
Mediation via biogenetic causal beliefs
- GLP-1 RA led to more negative evaluations through stronger biogenetic causal beliefs for a lean woman only
Original publication
The effect of GLP-1 receptor agonist use on negative evaluations of women with higher and lower body weight. Int J Obes (Lond). Published 1 April 2024. doi:10.
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