Clinical Trial Details
— Status: Active, not recruiting
Administrative data
NCT number |
NCT05166226 |
Other study ID # |
PBRC 2019-061 |
Secondary ID |
|
Status |
Active, not recruiting |
Phase |
|
First received |
|
Last updated |
|
Start date |
January 10, 2022 |
Est. completion date |
December 31, 2024 |
Study information
Verified date |
March 2024 |
Source |
Pennington Biomedical Research Center |
Contact |
n/a |
Is FDA regulated |
No |
Health authority |
|
Study type |
Observational
|
Clinical Trial Summary
The objective is to test the accuracy of the PortionSize™ app and the MyFitnessPal© app at
measuring energy and nutrient intake in free-living conditions. Participants will use
PortionSize™ and MyFitnessPal apps in separate periods to test the accuracy of the respective
apps.
Description:
Accurately quantifying food intake is vital to promoting health and reducing chronic disease
risk. Food intake encompasses energy intake, nutrient intake (macronutrients, micronutrients,
vitamins, minerals), and intake of various food groups (e.g., fruits, vegetables), and thus
reflects the nutritional status of individuals. Nutrition affects disease risk, including
risk of developing obesity, diabetes, and cancer, all of which negatively affect the United
States (U.S). Nonetheless, accurate assessment of food and nutrient intake has remained
challenging, despite an improvement in methods. Self report methods, namely food records, are
a mainstay of nutritional epidemiology research, with food recall being another popular
method. These methods rely on the participant to accurately estimate portion size and, for
food recall, remember what was consumed. The accuracy of these methods have been questioned
and the problems with human recall have been comprehensively outlined. As a result, there
remains a significant need for methods that are sufficiently accurate to provide researchers
with good outcome data and to guide health promotion efforts.
The PortionSize™ app was designed by our laboratory to overcome the limitations outlined
above, and to guide users to follow specific diets. PortionSize™ relies on users capturing
images of their food selection and waste. Food intake data are immediately provided since the
user relies on built in tools, including templates, to estimate portion size. However,
despite promising early indications, the PortionSize™ app has yet to be fully validated.
Determining the accuracy and reliability of PortionSize™ is vital before the app can be used
by people to obtain immediate feedback about their food intake. We accordingly aim to test
the reliability and validity of PortionSize™ in a semi-controlled free-living environment
using food provision, where participants consume pre-weighed food from a cooler and return
the plate waste in the cooler. We will also test the reliability and validity of the
MyFitnessPal app in the same semi-controlled free-living environment. The accuracy of the
apps will also be compared to each other.