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A randomized controlled trial of an appearance-based dietary intervention

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Abstract

Objective: Inadequate fruit and vegetable consumption precipitates preventable morbidity and mortality. The efficacy of an appearance-based dietary intervention was investigated, which illustrates the beneficial effect that fruit and vegetable consumption has on skin appearance. Methods: Participants were randomly allocated to three groups receiving information-only or a generic or own-face appearance-based intervention. Diet was recorded at baseline and 10 weekly follow-ups. Participants in the generic and own-face intervention groups witnessed on-screen stimuli and received printed photographic materials to illustrate the beneficial effect of fruit and vegetable consumption on skin color. Results: Controlling for baseline diet, a significant effect of intervention group was found on self-reported fruit and vegetable intake among 46 completers who were free of medical and personal reasons preventing diet change. The own-face appearance-based intervention group reported a significant, sustained improvement in fruit and vegetable consumption whereas the information-only and generic appearance-based intervention groups reported no significant dietary changes. Conclusions: Seeing the potential benefits of fruit and vegetable consumption on own skin color may motivate dietary improvement.
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Original languageEnglish
Pages (from-to)99-102
JournalHealth Psychology
Volume33
Issue number1
Early online date25 Mar 2013
DOIs
Publication statusPublished - 2014

    Research areas

  • Fruit and vegetables, Diet, Appearance-based intervention, Skin colour, Cartenoids

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