Web-Based Personalized Nutrition System for Delivering Dietary Feedback Based on Behavior Change Techniques: Development and Pilot Study among Dietitians

Kentaro Murakami, Nana Shinozaki, Shizuko Masayasu, M. Barbara E. Livingstone

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Given the complex and varied nature of individual characteristics influencing dietary behaviors, personalized dietary advice may be more effective than generalized “one-size-fits-all” advice. In this paper, we describe a web-based personalized nutrition system for improving the quality of overall diet in the general adult population. The development process included identification of appropriate behavior change techniques, modification of dietary assessment method (Meal-based Diet History Questionnaire; MDHQ), selection of dietary components, and a personalized dietary feedback tool. A pilot study was conducted online among 255 dietitians. Each completed the MDHQ, received his/her own dietary feedback report, and evaluated the relevance of the report based on 12 questions using a 5-point Likert scale from “totally disagree” (score 1) to “totally agree” (score 5). The mean value of overall acceptability score of dietary feedback report was 4.2. The acceptability score was, on average, higher in plausible energy reporters (compared with implausible energy reporters), participants who printed out the report (compared with those who did not), and those spending ≥20 min to read the report (compared with those spending 20 min). This is the first attempt to develop a web-based personalized nutrition system in Japan, where dietitians were broadly supportive of the dietary feedback report.
    Original languageEnglish
    Article numbere3391
    JournalNutrients
    Volume13
    Issue number10
    Early online date27 Sep 2021
    DOIs
    Publication statusE-pub ahead of print - 27 Sep 2021

    Keywords

    • personalized nutrition
    • behavior change
    • diet quality
    • dietary patterns
    • dietary feedback
    • dietary advice
    • acceptability
    • Meal-based Diet History Questionnaire
    • Internet
    • Japan

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