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Completed

NCT Number: NCT04893213

Increasing Availability of Lower Energy Meals on Food Choice and Intake

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.

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Key information

Conditions

Diet, Healthy Behavior Behavior, Animal Body Weight Eating Behavior Feeding Behavior Food Preferences Food Selection Nutrition Disorders Nutritional and Metabolic Diseases Obesity Overnutrition Overweight Pathological Conditions, Signs and Symptoms Signs and Symptoms

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

University of Liverpool

Liverpool, Merseyside, L69 7ZA, United Kingdom

About this study

See attached protocol documents.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • 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

Exclusion criteria

  • 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

Treatment and study plan

Manipulation of availability of lower energy meal options

Other

Menus provided differ in % of menu options that are higher vs. lower in energy

Primary outcomes

  1. Total meal energy (kcal) ordered

    Time frame: 20 minutes (the time frame denotes time taken to complete the initial study questionnaire and make the food choices)

    Calculated as the sum of the kcal content of the main and side ordered

  2. Total meal energy (kcal) consumed

    Time frame: Once the food has been delivered, the time frame is up to 72 hours

    Calculated as the sum of the kcals consumed from the main and side combined

Secondary outcomes

  1. Post-meal intake (kcal)

    Time frame: Measured 24-30 hours after study meal is consumed

    Calculated as total energy (kcal) consumed after the study meal until midnight on the following day (dietary recall).

Sponsors and collaborators

Lead sponsor

University of Liverpool

Other

Registry information

Official study title

Socioeconomic Position and the Impact of Increasing the Proportion of Lower Energy Foods Available on Supermarket Meal Choices and Consumption

Important dates

Study start
2021
Primary completion
2021
Study completion
2021
First posted
May 19, 2021
Registry last updated
May 12, 2022

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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