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Using the Norm Range to Predict the Effect of Food Portion Size Reductions on Compensation Over 5 Days

NCT03811210 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 39

Last updated 2019-01-24

No results posted yet for this study

Summary

Reducing food portion size is a potential strategy to reduce energy intake. However it is unclear at what point consumers compensate for reductions in portion size by increasing energy intake from other items. This could result in no overall benefit of reducing food portion sizes. The investigators tested the hypothesis that reductions to the portion size of components of a main meal will only result in significant compensatory eating when the reduced portion size is no longer visually perceived as 'normal'. In a crossover experiment, participants were served different sized portions during lunch and dinner over 5 days: a 'large-normal', a 'small-normal', and a 'smaller than normal' portion. Intake from all other meal components consumed in the laboratory were measured.

Conditions

  • Portion Size

Interventions

BEHAVIORAL

portion size

Smaller than normal portion size - the intervention is the main meal component size perceived as 'smaller than normal' that participants are provided with during lunch and dinner in the laboratory. Small-normal portion size - the intervention is the main meal component size perceived as 'small-normal' that participants are provided with during lunch and dinner in the laboratory. Large-normal portion size - the intervention is the main meal component size perceived as 'large-normal' that participants are provided with during lunch and dinner in the laboratory.

Sponsors & Collaborators

Study Design

Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
SINGLE
Model
CROSSOVER

Eligibility

Min Age
18 Years
Max Age
60 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2018-02-06
Primary Completion
2018-12-07
Completion
2018-12-10

Countries

  • United Kingdom

Study Locations

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Entities

Companies

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 NCT03811210 on ClinicalTrials.gov