Does exposure to socially endorsed food images on social media influence food intake?

Abstract

Social norms can influence the consumption of high and low energy-dense (HED/LED) snack foods. Such norms could be communicated via social media, however, there is little experimental research investigating this possibility. This laboratory study aimed to investigate the acute effect of socially endorsed social media posts on participants' eating behaviour. Healthy women students (n = 169; mean age = 20.9; mean BMI = 23.3) were assigned to either a HED, LED or control condition, where they viewed three types of images (HED foods, LED foods and interior design as control), but only one type was socially endorsed (e.g. in the control condition, only interior design images were socially endorsed). Participants completed questionnaires and were also provided a snack buffet of grapes and cookies. One-way ANOVA revealed a significant main effect of condition on participants’ relative consumption of grapes (percentage of grapes consumed out of total food intake), for both grams and calories consumed (both ps <. 05). Follow-up t-tests revealed that participants consumed a larger proportion of grapes (grams and calories) in the LED condition vs HED condition (all ps <. 05), and a larger proportion of calories from grapes in the LED compared to control condition (p <. 05). These findings suggest that exposure to socially endorsed images of LED food on social media could nudge people to consume more of, and derive more calories from these foods in place of HED foods. Further research is required to examine the potential application of these findings.

Publication DOI: https://doi.org/10.1016/j.appet.2021.105424
Divisions: College of Health & Life Sciences > School of Psychology
College of Health & Life Sciences > Applied Health Research Group
College of Health & Life Sciences
Additional Information: © 2021, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/
Uncontrolled Keywords: Food consumption,Healthy eating,Social media,Social norms,Psychology(all),Nutrition and Dietetics
Full Text Link:
Related URLs: https://linking ... 195666321003317 (Publisher URL)
http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Article
Published Date: 2021-10-01
Published Online Date: 2021-05-24
Accepted Date: 2021-05-19
Authors: Hawkins, Lily
Farrow, Claire (ORCID Profile 0000-0003-3745-6610)
Thomas, Jason M. (ORCID Profile 0000-0001-7013-8994)

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Version: Accepted Version

Access Restriction: Restricted to Repository staff only until 24 May 2023.

License: Creative Commons Attribution Non-commercial No Derivatives


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