Self-efficacy, Action Planning, and Social Support Explain Fruit and Vegetable Consumption

[Speaker] Zhou, Guangyu:1
[Co-author] Gan, Yiqun:2
1:Free University of Berlin (China (People's Republic of China)), 2:Peking University (China (People's Republic of China))

It has been demonstrated that self-efficacy, action planning, and social support could predict changes in fruit and vegetable intake. This study examines the relationship among these variables and explores the putative mediator and moderator mechanisms that might account for fruit and vegetable consumption.
A longitudinal survey study with 286 participants, surveyed three times with one month interval, was conducted in China. In a moderated mediation analysis, action planning was specified as a mediator between self-efficacy and fruit and vegetable intake, whereas social support was specified as a moderator between self-efficacy and action planning. Baseline fruit and vegetable consumption, age, sex, and BMI were set as covariates.Action planning mediated between self-efficacy and fruit and vegetable intake. Social support moderated this mediation, reflected by a self-efficacy and social support interaction on action planning.High social support appeared to compensate for low levels of self-efficacy on fruit and vegetable consumption through action planning.
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