A Multi-View Framework for Cross-Domain Nutrition Misinformation Detection in Social Media

Vishwaa Shah, Indika Kahanda, Andrea Arikawa, Asal Abbaszadeh, Richard Loftis


Abstract
Nutrition misinformation on social media often arises from selective interpretation of scientific evidence rather than outright falsehoods, making it difficult to detect. We introduce a curated, expert-annotated Instagram dataset focused on seed oils and omega-6, two domains characterized by contested dietary claims. We evaluate feature-based, embedding-based, and transformer-based models under in-domain and cross-domain settings. Results show strong in-domain performance across all models, with Sentence-BERT achieving the highest AUPRC (up to 0.96). However, performance drops substantially under cross-domain transfer, indicating limited robustness to topic shift. Analysis suggests that while contextual embeddings capture strong in-domain semantic signals, linguistically and psychologically grounded features are more stable under distribution shift. These findings highlight the value of combining semantic and interpretable linguistic signals for robust misinformation detection.
Anthology ID:
2026.bionlp-1.26
Volume:
BioNLP 2026
Month:
July
Year:
2026
Address:
San Diego, California
Editors:
Dina Demner-Fushman, Sophia Ananiadou, Kirk Roberts, Junichi Tsujii
Venues:
BioNLP | WS
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
326–341
Language:
URL:
https://preview.aclanthology.org/ingest-acl-workshops/2026.bionlp-1.26/
DOI:
Bibkey:
Cite (ACL):
Vishwaa Shah, Indika Kahanda, Andrea Arikawa, Asal Abbaszadeh, and Richard Loftis. 2026. A Multi-View Framework for Cross-Domain Nutrition Misinformation Detection in Social Media. In BioNLP 2026, pages 326–341, San Diego, California. Association for Computational Linguistics.
Cite (Informal):
A Multi-View Framework for Cross-Domain Nutrition Misinformation Detection in Social Media (Shah et al., BioNLP 2026)
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PDF:
https://preview.aclanthology.org/ingest-acl-workshops/2026.bionlp-1.26.pdf