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Linguistically Tailored Health Messages to Encourage Plant-Based Food Choices in Adolescents
Sponsor: Erasmus University Rotterdam
Summary
The goal of this clinical trial is to investigate the effectiveness of linguistically tailored messages for promoting plant-based food choices in adolescents. The main question it aims to answer is: • Are linguistically tailored messages more effective in promoting plant-based eating compared to a) non-tailored messages (active control), and b) not receiving messages at all (passive control)? Researchers will compare participants exposed to linguistically tailored messages, non-tailored messages, and no messages to determine if linguistic messages are more effective in promoting plant-based food choices. Participants will receive daily messages promoting a plant-based diet from Monday to Friday for two weeks, accompanied by daily and weekend surveys about their food choices and message perception.
Official title: The Effectiveness of Linguistically Tailored Health Messages to Encourage Plant-Based Food Choices in Adolescents
Key Details
Gender
All
Age Range
11 Years - 16 Years
Study Type
INTERVENTIONAL
Enrollment
600
Start Date
2024-10-04
Completion Date
2025-10-01
Last Updated
2025-08-12
Healthy Volunteers
No
Interventions
Non Tailored Messages
Generic messages promoting a plant-based diet were developed, with each message addressing one of the three most commonly mentioned motives for plant-based eating (Miki et al., 2019; Miki et al., 2020): health motives, environmental motives, and animal welfare motives. All messages were designed to be factual (including science-based statistics), concise (4-5 sentences), relevant to teens (e.g., addressing health concerns like acne), and autonomy-supportive (offering suggestions and tips rather than directives) (Hingle et al., 2013). The messages were intentionally crafted in a neutral linguistic style, avoiding highly emotive language, non-standard syntax, or emojis. These messages are delivered from Monday to Friday for two weeks.
Linguistically tailored health messages
Linguistically tailored messages are generated using a Large Language Model. Generic messages promoting a plant-based diet were customized to align with participants' linguistic style, including their preferred choice of words, expressed valence, syntax, and emoji use. These messages are delivered from Monday to Friday for two weeks.
Locations (2)
Norstat UK Ltd. (Online Research Panel)
London, Ireland
Norstat UK Ltd. (Online Research Panel)
London, United Kingdom