Robinson, E., Henderson, J., Gregory et al. (2 more authors) (2019) When a portion becomes a norm: Exposure to a smaller vs. larger portion of food affects later food intake. Food Quality and Preference. ISSN 0950-3293
Abstract
Background Portion sizes in the food environment may communicate information about what constitutes a ‘normal’ normal amount of food to eat. Here we examined whether mere visual exposure to a smaller vs. larger portion size of snack food affects perceptions of how much a ‘normal’ sized portion is and how much people choose to eat of that food in future.
Methods Under the guise of a study on taste preference and personality, 104 female participants were randomly allocated to be exposed to either a smaller or larger portion size of snack food. Twenty-four hours later participants freely selected a portion of the snack food to consume and reported on their perception of what constituted a normal sized portion of the snack food.
Results Participants that were exposed to a smaller, as opposed to larger portion size subsequently believed that a normal portion of the snack food was smaller in size. Exposure to the smaller as opposed to the larger portion size also resulted in participants consuming less snack food the next day.
Conclusions Environmental exposure to smaller, as opposed to larger portion sizes of food may change perceptions of what constitutes a normal amount of food to eat and affect the amount of food people choose to eat in future.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2019 The Authors. This is an author produced version of a paper subsequently published in Food Quality and Preference. Uploaded in accordance with the publisher's self-archiving policy. Article available under the terms of the CC-BY-NC-ND licence (https://creativecommons.org/licenses/by-nc-nd/4.0/). |
Keywords: | Portion size; food environment; obesity; social norms |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Medicine, Dentistry and Health (Sheffield) > School of Health and Related Research (Sheffield) > ScHARR - Sheffield Centre for Health and Related Research |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 01 Mar 2019 10:51 |
Last Modified: | 25 Feb 2020 01:38 |
Published Version: | https://doi.org/10.1016/j.foodqual.2019.02.013 |
Status: | Published |
Publisher: | Elsevier |
Refereed: | Yes |
Identification Number: | 10.1016/j.foodqual.2019.02.013 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:143137 |