Increasing Availability of Lower Energy Meals on Food Choice and Intake
Socioeconomic Position and the Impact of Increasing the Proportion of Lower Energy Foods Available on Supermarket Meal Choices and Consumption
1 other identifier
interventional
80
1 country
1
Brief Summary
This study will examine the effectiveness of a structural intervention (baseline proportion of lower energy ready meals vs increased proportion of lower energy ready meals) on calories (kcal) ordered and consumed. The study will use a within-subjects design, meaning all participants will be exposed to both conditions (baseline vs increased lower energy meal menus). The procedure will involve participants placing orders for supermarket ready meals, which are then delivered to their homes for their consumption. This study will also investigate whether the effectiveness of the intervention varies, depending on socioeconomic position (SEP). The primary hypothesis is that increasing proportion of lower energy options will decrease total kcal ordered and consumed, and that there will be no difference between higher and lower SEP. To address the limited evidence on longer term impacts of dietary interventions on daily energy intake, the present study will also examine post-meal energy consumption up to midnight on the following day. Finally, this study will explore the psychological processes that might underlie the effectiveness of the intervention among individuals with higher and lower SEP; namely, food choice motives, satiety responsiveness, plate clearing tendencies, and food waste concerns.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable
Started Apr 2021
Shorter than P25 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
April 13, 2021
CompletedFirst Submitted
Initial submission to the registry
May 10, 2021
CompletedFirst Posted
Study publicly available on registry
May 19, 2021
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 5, 2021
CompletedStudy Completion
Last participant's last visit for all outcomes
July 5, 2021
CompletedMay 12, 2022
May 1, 2022
3 months
May 10, 2021
May 11, 2022
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
Total meal energy (kcal) ordered
Calculated as the sum of the kcal content of the main and side ordered
20 minutes (the time frame denotes time taken to complete the initial study questionnaire and make the food choices)
Total meal energy (kcal) consumed
Calculated as the sum of the kcals consumed from the main and side combined
Once the food has been delivered, the time frame is up to 72 hours
Secondary Outcomes (1)
Post-meal intake (kcal)
Measured 24-30 hours after study meal is consumed
Study Arms (2)
Baseline availability
ACTIVE COMPARATORBaseline availability of lower energy meal options
Increased availability
EXPERIMENTALIncreased availability of lower energy meal options
Interventions
Menus provided differ in % of menu options that are higher vs. lower in energy
Eligibility Criteria
You may qualify if:
- UK (United Kingdom) residents, aged 18 or over
- Fluent in English
- Have access to a phone/tablet/computer device which has access to Internet and a functioning camera
- Willing to consume two supermarket ready meals
- Have access to a functioning microwave and oven for the preparation of the ready meals
You may not qualify if:
- Taking part more than once
- Another member of the same household has participated in the study (Multiple members of the same household will not be allowed to take part)
- Current or historic diagnosed eating disorders
- Currently on any medication which affects appetite
- Any of the following dietary restrictions, intolerances, or allergies (Vegetarian, vegan, gluten-free, sugar-free, dairy/lactose-free, food allergy - such as milk, eggs, nut, wheat, fish, etc)
- History of severe childhood allergies, anaphylaxis or anaphylactic shock
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
University of Liverpool
Liverpool, Merseyside, L69 7ZA, United Kingdom
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Eric Robinson, PhD
Study Principal Investigator
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- PREVENTION
- Intervention Model
- CROSSOVER
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Reader in Psychological Sciences
Study Record Dates
First Submitted
May 10, 2021
First Posted
May 19, 2021
Study Start
April 13, 2021
Primary Completion
July 5, 2021
Study Completion
July 5, 2021
Last Updated
May 12, 2022
Record last verified: 2022-05
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL, SAP
- Time Frame
- On publication, indefinitely
- Access Criteria
- Open website
Shared on the Open Science Framework (OSF)