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SEP and the Impact of Portion Size on Daily Energy Intake

NCT05173376 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 54

Last updated 2023-01-10

No results posted yet for this study

Summary

Reducing food portion size is a potential strategy to reduce energy intake. There is some evidence to suggest that individuals with lower socioeconomic position (SEP) intend to eat more from larger portions, suggesting that the effect of portion size on food intake might vary by SEP. However, no study has tested this by measuring actual food intake. This study examines whether reductions to the portion size of components of a main meal will reduce daily energy intake, and whether and how socioeconomic position (higher vs lower) moderates the portion size effect.

In a crossover experiment, participants will be served all meals in the lab on two separate days, with the portion size of main meal components at lunch and dinner manipulated (i.e. smaller on one day vs larger on the other day). All other foods offered are identical. Food intake from the portion-manipulated lunch and dinner, as well as all other meal components (breakfast, dessert, seconds, snacks) will be measured, and any additional food consumed by the participant will be measured using self-report, giving total daily energy intake (kcal).

Conditions

  • Diet, Healthy
  • Eating Behavior
  • Obesity

Interventions

BEHAVIORAL

Portion size manipulation

The intervention was administered via changing portion sizes of foods served to participants.

Sponsors & Collaborators

Principal Investigators

  • Eric Robinson, PhD · Study Principle Investigator

Study Design

Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
SINGLE
Model
CROSSOVER

Eligibility

Min Age
18 Years
Sex
FEMALE
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2021-10-25
Primary Completion
2022-04-07
Completion
2022-04-07

Countries

  • United Kingdom

Study Locations

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Diseases
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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT05173376 on ClinicalTrials.gov