McLeod, C. J. and Thomas, J. M. (2024). Does social-norm messaging influence expected satiety and ideal portion-size selection? Appetite, 193 ,
Abstract
A person's perception of how long a food will stave off hunger (expected satiety) and the ideal amount to consume (ideal portion size) are both influenced by food-to-mealtime norms. Here, we examine whether social norms can modulate this effect, in three experimental studies. In study 1 (n = 235) participants were exposed to a social norm suggesting most people enjoyed consuming pasta for breakfast. There was a main effect of food-to-mealtime congruence for expected satiety and ideal portion size (p < 0.001) – participants selected a smaller portion of pasta for breakfast (vs. lunch) – but there were no other main effects/interactions (p ≥ 0.15). Study 2 (n = 200) followed the same approach as study 1, but sought to examine whether the typical volume of food consumed at breakfast and lunch needed to be controlled. Again, there was a main effect of congruence (the same pattern) (p ≤ 0.02) but no other main effects/interactions (p ≥ 0.73). Study 3 (n = 208) followed the same approach as study 2, but the social-norm message was changed to suggest that most people who eat pasta for breakfast found it effectively reduced their hunger. Again, there was a main effect of congruence (the same pattern) (p < 0.001) but no other main effects/interaction (p ≥ 0.26). These studies provide further evidence for the food-to-mealtime effect, but do not provide any evidence that a single, simple social-norm statement can modulate expected satiety or ideal portion size, or interact with the food-to-mealtime effect.
Publication DOI: | https://doi.org/10.1016/j.appet.2023.107157 |
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Divisions: | College of Health & Life Sciences > School of Psychology College of Health & Life Sciences Aston University (General) |
Additional Information: | © 2023 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/bync-nd/4.0/). |
Uncontrolled Keywords: | Eating behaviour,Expected satiety,Portion size selection,Social norms,General Psychology,Nutrition and Dietetics |
Publication ISSN: | 1095-8304 |
Last Modified: | 25 Nov 2024 18:04 |
Date Deposited: | 18 Jan 2024 13:12 |
Full Text Link: | |
Related URLs: |
http://www.scop ... tnerID=8YFLogxK
(Scopus URL) https://www.sci ... 6193?via%3Dihub (Publisher URL) |
PURE Output Type: | Article |
Published Date: | 2024-02-01 |
Published Online Date: | 2023-12-09 |
Accepted Date: | 2023-12-05 |
Authors: |
McLeod, C. J.
Thomas, J. M. ( 0000-0001-7013-8994) |
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