Projects per year
Abstract
Laboratory studies have demonstrated that experimental manipulations of oral processing can have a marked effect on energy intake. Here, we explored whether variations in oral processing across a range of unmodified everyday meals could affect post-meal fullness and meal size. In Study 1, female participants (N=12) attended the laboratory over 20 lunchtime sessions to consume a 400-kcal portion of a different commercially available pre-packaged meal. Prior to consumption, expected satiation was assessed. During each meal, oral processing was characterised using; i) video-recordings of the mouth and ii) real-time measures of plate weight. Hunger and fullness ratings were elicited pre- and post-consumption, and for a further three hours. Foods that were eaten slowly had higher expected satiation and delivered more satiation and satiety. Building on these findings, in Study 2 we selected two meals (identical energy density) from Study 1 that were equally liked but maximised differences in oral processing. On separate days, male and female participants (N=24) consumed a 400-kcal portion of either the ‘fast’ or ‘slow’ meal followed by an ad libitum meal (either the same food or a dessert). When continuing with the same food, participants consumed less of the slow meal. Further, differences in food intake during the ad libitum meal were not compensated at a subsequent snacking opportunity an hour later. Together, these findings suggest that variations in oral processing across a range of unmodified everyday meals can affect fullness after consuming a fixed portion and can also impact meal size. Modifying food form to encourage increased oral processing (albeit to a lesser extent than in experimental manipulations) might represent a viable target for food manufacturers to help to nudge consumers to manage their weight.
Original language | English |
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Article number | 315 |
Journal | Nutrients |
Volume | 8 |
Issue number | 5 |
DOIs | |
Publication status | Published - 21 May 2016 |
Research Groups and Themes
- Brain and Behaviour
- Nutrition and Behaviour
Keywords
- Oral processing behaviours
- Satiation
- Satiety
- Expected satiation
- Liking
- Appetite
- Nudge theory
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Dive into the research topics of 'Variation in the oral processing of everyday meals is associated with fullness and meal size; a potential nudge to reduce energy intake?'. Together they form a unique fingerprint.Projects
- 1 Finished
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Understanding eating topography: The key to reducing energy intake in humans?
Brunstrom, J. (Principal Investigator)
31/07/12 → 30/01/16
Project: Research
Profiles
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Professor Jeff Brunstrom
- Bristol Poverty Institute
- School of Psychological Science - Professor of Experimental Psychology
- Bristol Neuroscience
Person: Academic , Member
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Dr Danielle Ferriday
- School of Psychological Science - Associate Professor in Nutrition and Behaviour
- Bristol Poverty Institute
Person: Academic , Member