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Related Experiment Video

Updated: Jan 7, 2026

'Boden Food Plate': Novel Interactive Web-based Method for the Assessment of Dietary Intake
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User Preferences for an Image-Assisted Dietary Recall: Qualitative Study Comparing 3 Dietary Assessment Methods.

Janelle D Healy1, Christina M Pollard1,2, Clare E Collins3,4

  • 1Curtin School of Population Health, Curtin University, Perth, Western Australia, Australia.

JMIR Human Factors
|December 30, 2025
PubMed
Summary
This summary is machine-generated.

Technology-assisted 24-hour dietary recall (24HR) methods need to be user-friendly. Qualitative research shows participants prefer easy-to-use tools and find images helpful for recall, highlighting the need to reduce burden in dietary assessments.

Keywords:
24-hour recallAutomated Self-Administered Dietary Assessment ToolIntake24, mobile food recordacceptabilitycontrolled feedingimage-assisted dietary assessmentinterviewmobile technologyqualitative research

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Area of Science:

  • Nutrition and Dietetics
  • Human-Computer Interaction
  • Qualitative Research Methods

Background:

  • Technology-assisted 24-hour dietary recall (24HR) methods are scalable for population dietary assessment.
  • Challenges include balancing accuracy, cost, participant burden, and acceptability.
  • Qualitative methods are underexplored for understanding 24HR acceptability barriers and enablers.

Purpose of the Study:

  • To explore user experience, acceptability, and preferences for three technology-assisted 24HR methods.
  • To identify barriers and enablers for adopting these dietary assessment tools.
  • To inform the development of user-centered dietary assessment technologies.

Main Methods:

  • A crossover controlled feeding study involving 26 participants (ages 21-56).
  • Participants used three 24HR methods: Automated Self-Administered 24-hour Dietary Assessment Tool (ASA24), Intake24, and Image-Assisted Interviewer-Administered 24-hour dietary recall (IA-24HR).
  • Semistructured interviews were conducted post-study, with audio recordings transcribed and analyzed using inductive content analysis.

Main Results:

  • Participants desired ease of use; technology features were generally helpful.
  • Key themes included difficulty with portion size estimation and food identification.
  • The Image-Assisted Interviewer-Administered 24-hour dietary recall (IA-24HR) method, utilizing mobile food record (mFR) app images, was preferred for aiding recall and perceived accuracy.

Conclusions:

  • 24HR methods must prioritize user-friendliness and simplicity.
  • Reducing participant burden in food identification and portion estimation is crucial.
  • Qualitative insights are vital for developing acceptable and effective technology-assisted dietary assessment tools, with embedded technologies like personal food images showing promise.