NCT03309306: FoodImage

Evaluating Household Food Behavior With a Smartphone App

Completed NA Results posted Last updated 24 January 2025

What this trial tests

NA trial testing Natural Environment/Stress Management in Food Habits in 44 participants. Completed in 31 March 2020.

Timeline

26 April 2018

Primary endpoint
7 September 2018

31 March 2020

Quick facts

Lead sponsor	Pennington Biomedical Research Center
Phase	NA
Status	Completed
Study type	INTERVENTIONAL
Allocation	randomized
Design	parallel
Masking	double
Primary purpose	other
Enrollment	44
Start date	26 April 2018
Primary completion	7 September 2018
Estimated completion	31 March 2020
Sites	1 location across United States

Drugs / interventions tested

• Natural Environment/Stress Management
• Natural Environment/Reduce Food Waste

Conditions studied

• Food Habits — all drugs for Food Habits →

Sponsor

Pennington Biomedical Research Center — full company profile →

Who can join

Adults 18 to 65, any sex, with Food Habits. Patients with the condition only — healthy volunteers not accepted.

Results — posted to ClinicalTrials.gov

Per-arm endpoint measurements with 95% confidence intervals where reported. Source: trial results section.

Phase 1: Food Waste Error Primary · Visit 1

Participant estimations of food waste using the following three experimental methods as compared to the criterion value of weighed waste collected by study staff: 1) the FoodImage App (FoodImage app estimates minus the criterion value of lab personnel measured weighed food waste), 2) pen and paper diary with visual estimation of food amounts (pen and paper estimates minus the criterion value), and 3) pen and paper diary with a scale (pen and paper dairy accompanied by a scale minus directly weighed foods by lab personnel). All food values are in grams. The error values noted here represent les

Group	Value	95% CI
FoodImage App	-16.25	± 84.72
Diary: Visual Estimation	31.34	± 134.80
Diary With a Scale	20553.6	± 111,151

Phase 2: Weight of All Household Waste Secondary · Baseline to Day 14

Difference in change in total weight of all sources of household food waste.

Group	Value	95% CI
Phase 2: RCT Stress Management	-232.65	± 289.44
Phase 2: RCT Food Waste Reduction	-325.05	± 319.99

Sponsor's own description

The purpose of this study is to test the use of a smartphone app as a way to measure food waste.

Investigators propose to improve the accuracy and convenience of household food waste measurement so that consumer food waste program evaluations yield more power, less bias, less measurement error, and greater representation of targeted populations.

Publications & conference data

2 peer-reviewed publications reference this trial (live from Europe PMC):

1. A Randomized Controlled Trial to Address Consumer Food Waste with a Technology-aided Tailored Sustainability Intervention.
   Roe BE, Qi D, Beyl RA, Neubig KE, et al · · 2022 · cited 9× · PMID 35087261 · DOI 10.1016/j.resconrec.2021.106121
2. The Validity, Time Burden, and User Satisfaction of the FoodImage™ Smartphone App for Food Waste Measurement Versus Diaries: A Randomized Crossover Trial.
   Roe BE, Qi D, Beyl RA, Neubig KE, et al · · 2020 · cited 8× · PMID 32773964 · DOI 10.1016/j.resconrec.2020.104858