Rosenbaum · The International journal of eating disorders 2024 · randomized controlled trial · n=319

A randomized controlled trial of a reading-based weight bias intervention.

Level 2 - randomized trial

Individual randomized controlled trial evaluating a reading intervention against an active informational control.

PubMed 38738962 · doi:10.1002/eat.24228 · record verified 2026-08-26

What was done

Participants (N = 319) were randomized to read either a third-person fictional narrative passage about a peer with obesity (designed to reduce controllability beliefs and stereotypes while promoting empathy) or informational text on overweight and obesity (control). Linear mixed models adjusting for body mass index and gender were used to assess changes in weight bias from baseline to 1-month follow-up.

What was found

The abstract reports directional findings without numerical values, effect sizes, p-values, or confidence intervals. The intervention produced significant reductions in overall weight bias and beliefs about the controllability of weight compared to the control condition from baseline to 1-month follow-up. No significant between-group differences were found in the specific bias domains of character disparagement or physical unattractiveness.

Why it matters

This study demonstrates that a brief, narrative-based reading intervention can alter some dimensions of weight stigma over a 1-month period, providing a potential low-cost component for stigma-reduction strategies.

Limits

No quantitative data (means, standard deviations, effect sizes, or p-values) are provided in the abstract. Demographic details and participant characteristics beyond BMI and gender covariates are omitted. The intervention failed to shift biases regarding character disparagement or physical attractiveness, and follow-up was limited to one month without assessment of actual discriminatory behaviors.