A dynamic social norm messaging intervention to reduce meat consumption: A randomized cross-over trial in retail store restaurants.
Appetite
; 169: 105824, 2022 02 01.
Article
em En
| MEDLINE
| ID: mdl-34826525
ABSTRACT
Perceptions of social norms around eating behavior can influence food choices. Communicating information about how others are changing their eating behavior over time (dynamic descriptive social norms) may motivate individuals to change their own food selection and consumption. Following a four-week baseline period, 22 in-store restaurants of a major retail chain across the UK were randomized to display a dynamic descriptive social norm message intended to motivate a shift from meat-to plant-based meals either during the first two, or last two weeks of the four-week study period. A linear regression model showed there was no evidence of an effect of the intervention (ß = -0.022, p = .978, 95% CIs -1.63, 1.58) on the percentage sales of meat- vs plant-based dishes. Fidelity checks indicated that adherence to the intervention procedure was often low, with inconsistencies in the placement and display of the intervention message. In four stores with high fidelity the estimated impact of the intervention was not materially different. The lack of apparent effectiveness of the intervention may reflect poor efficacy of the intervention or limitations in its implementation in a complex food purchasing environment. The challenges highlighted by this study should be considered in future design and evaluation of field trials in real-world settings.
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Texto completo:
1
Bases de dados:
MEDLINE
Assunto principal:
Restaurantes
/
Normas Sociais
Tipo de estudo:
Clinical_trials
Limite:
Humans
Idioma:
En
Revista:
Appetite
Ano de publicação:
2022
Tipo de documento:
Article