A Field Test of Popular Chatbots’ Responses To Questions Concerning Negative Body Image
Open accessAbstract
Background: Chatbots are computer programs, often built upon large artificial intelligence models, that employ dialogue systems to enable online, natural language conversations with users via text, speech, or both. Body image, broadly defined as a combination of thoughts and feelings about one’s physical appearance, has been implicated in many risk behaviors and health problems, especially among adolescents and young adults. Little is known about how chatbots respond to questions about body image. Methods: This study assessed the responses of 14 widely-used chatbots (eight companion and six therapeutic chatbots) to ten body image-related questions developed upon validated instruments. Chatbots’ responses were documented, with qualities systematically assessed by nine pre-determined criteria. Results: The overall quality of the chatbots’ responses was modest (an average score of five out of nine), with substantial variations in the content and quality of responses across chatbots (individual scores ranging from one to eight). Companion and therapeutic chatbots systematically differed in their responses (e.g., focusing on comforting users vs. trying to identify the causes of negative body image and recommending potential remedies). Some therapeutic chatbots recognized potential mental health crises (self-harm) in test users’ messages. Conclusion: Substantial heterogeneities in the responses were present across chatbots and assessment criteria. Adolescents and young adults struggling with body image could be vulnerable to misleading or biased remarks made by chatbots. Still, the technical and supervision challenges to prevent those adverse consequences remain paramount and unsolved.
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Across 14 widely used LLM-CBs, the quality of responses to mental health queries ranges widely, indicating a lack of consistency.
“Furthermore, across 14 widely used LLM-CBs, the quality of responses to mental health queries ranges widely, indicating a lack of consistency70.”
From A scoping review on the mental health harms of LLM-based chatbots (2026) · cites this paper as [70]
The Discussion reports substantial variation in response quality across 14 popular companion and therapeutic chatbots. The study tested body image-related questions, however, so it does not establish the same pattern for mental health queries generally or identify all 14 as LLM-based chatbots. (LLM, conf=0.84)
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A scoping review on the mental health harms of LLM-based chatbots
Diel, A., Torous, J., Cuijpers, P., Kleesiek, J., Nensa, F., Weber, N., Faust, F., Lalgi, T. J., Mellis, F. S., Teufel, M., et al. (2026) · npj Digital Medicine · doi:10.1038/s41746-026-03054-x · Cited by 4 · see citing works
“Furthermore, across 14 widely used LLM-CBs, the quality of responses to mental health queries ranges widely, indicating a lack of consistency 70 .”
- Authors
- An, R., Byron, C. W., Chen, C., & Xiang, X.
- Affiliations
- Washington University in St. Louis (US)
- Corresponding author
- An, Ruopeng
- Venue
- Health Behavior Research
- Publisher
- Kansas State University
- Published
- 2023-01-03
- Volume
- 6
- Issue
- 1
- ISSN
- 2572-1836 (ISSN-L)
- OpenAlex
- W4313575150
- Cited by
- 6
- References
- 12
- Citations by year
- 2026: 2 · 2025: 1 · 2024: 2 · 2023: 1
- FWCI
- 1.55
- Type
- journal article
- Language
- en
- Open access
- diamond
- doi.org
- Licence
- cc-by-nc
- Locations
- Health Behavior Research (publishedVersion, cc-by-nc)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- New Prairie Press (Kansas State University) (submittedVersion, cc-by-nc)
- Topics
- Social Sciences › Psychology › Applied Psychology › Digital Mental Health Interventions
- Social Sciences › Psychology › Social Psychology › Social Robot Interaction and HRI
- Social Sciences › Psychology › Clinical Psychology › Eating Disorders and Behaviors
- Keywords
- chatbots, negative body image, body image, therapeutic chatbots, self-harm detection, adolescents, young adults, mental health, large language models, dialogue systems
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