Individual Study / Wharton et al.; J Nutr Educ Behav. 2014

Dietary Self-Monitoring, but Not Dietary Quality, Improves With Use of Smartphone App Technology in an 8-week Weight Loss Trial

Dietary Self-Monitoring, but Not Dietary Quality, Improves With Use of Smartphone App Technology in an 8-week Weight Loss Trial

Initiatives -
The authors assessed the use of a popular smartphone app for dietary self-monitoring and weight loss by comparing it with traditional diet counseling and entry methods. Note: All published information has been collected from the article referenced in the Marker Paper box below. Therefore, there may be variations with more advanced versions of the study.
Start Year
2014
Funding
Funding for this study was provided by the Nutrition Fund of the Arizona State University Foundation.

Design

Study design
Clinical trial cohort

Marker Paper

Wharton CM, Johnston CS, Cunningham BK, Sterner D. Dietary self-monitoring, but not dietary quality, improves with use of smartphone app technology in an 8-week weight loss trial. J Nutr Educ Behav. 2014;46(5):440‐444. doi:10.1016/j.jneb.2014.04.291

PUBMED 25220777

Number of participants

Number of participants
57
Number of participants with biosamples

Access

Availability of data and biosamples

Data
Biosamples
Other

Timeline

Population

Healthy, weight-stable adults (18–65 years of age; body mass index [BMI], 25–40 kg/m2) who owned smartphones were recruited from a campus community to participate in an 8-week weight loss trial. Participants (n = 57) were free of unresolved medical conditions and did not take medications or supplements known to affect body weight. All participants reported no dieting or weight changes of greater than ± 5 lb in the past 3 months and agreed to record all food intake during the trial using their smartphone or a paper-based diet log.
Selection Criteria
Minimum age
18
Maximum age
65
Newborns
Twins
Countries
  • United States of America
Territory
Arizona
Ethnic Origin
Health Status
  • body mass index [BMI], 25–40 kg/m2)

Recruitment

Sources of recruitment
  • General population

Number of participants

Number of participants
57
Number of participants with biosamples
Data Collection Event
Diet tracking and weight loss were compared across participants during an 8-week weight loss trial. Participants tracked intake using 1 of 3 methods: the mobile app "Lose It!", the memo feature on a smartphone, or a traditional paper-and-pencil method.
Start Date
2014
End Date
2014
Data sources
  • Mobile data collection
    • Smartphone
    • Smartphone apps