N/A
Completed N=43
PortionSize Study 1 Laboratory-based Evaluation)
Dietary Habits
Source: ClinicalTrials.gov NCT04700904 ↗
Enrolled (actual)
43
Serious AEs
0.0%
Results posted
Jan 2025
Primary outcomePrimary: Difference in Simulated Energy (kcal) Intake Between the Criterion Measure (Weighed Food) and Two Smartphone Apps (PortionSize and MyFitness Pal). — -150.1; 79.8 kcal
Summary
The objective is to test the accuracy and user satisfaction of the PortionSize™ app and the MyFitnessPal© app during laboratory controlled test meals.
Outcome Measures
| Outcome | Result | p-value |
|---|---|---|
| PRIMARY Difference in Simulated Energy (kcal) Intake Between the Criterion Measure (Weighed Food) and Two Smartphone Apps (PortionSize and MyFitness Pal). |
-150.1; 79.8 | — |
Eligibility Criteria
Inclusion Criteria
- Male or female, age 18-70 years
- Body mass index (BMI) 18.5 - 50
- Ownership of an iPhone model 6s or later, which the participant is willing to use for the study
- Access to Apple ID, password, and email address and willing to use them in the course of the study
- Willing to use data and any accompanying charges as part of study participation
- Willing to be re-contacted for future research and/or follow-up
Exclusion Criteria
- Center employee
- Any condition or circumstance that could impede study completion
Data sourced from ClinicalTrials.gov (NCT04700904). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication. Informational only — not medical advice.