People serve themselves larger portions before a social meal

Helen K Ruddock, Emma V Long, Jeffrey M Brunstrom, Lenny R Vartanian, Suzanne Higgs

Research output: Contribution to journalArticle (Academic Journal)peer-review

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Abstract

One of the most powerful influences on food intake yet identified is the presence of familiar others at an eating occasion: people eat much more when they eat with friends/family than when they eat alone. But why this is the case is unclear. Across two studies (Study 1: N = 98; Study 2: N = 120), we found that the mere anticipation of social interaction is all that is needed to promote the selection of larger meals, and that this occurs even when a person is alone when they make their decision. Adult women served themselves larger portions when they knew they were going to eat socially versus when they knew they were going to eat alone. These data suggest that how other people influence our food intake reaches beyond the specific eating context to affect pre-meal portion size decisions, suggesting that a fundamental shift is required in our thinking about social influences on eating.

Original languageEnglish
Article number11072
Pages (from-to)11072
JournalScientific Reports
Volume11
Issue number1
Early online date26 May 2021
DOIs
Publication statusE-pub ahead of print - 26 May 2021

Bibliographical note

Funding Information:
The research was funded by an ESRC Grant awarded to SH, JB, and LV. Project reference: ES/P01027X/1.

Publisher Copyright:
© 2021, The Author(s).

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