Abstract
PurposeSelf-efficacy has often been found to play a significant role in healthy dietary behaviours. However, self-efficacy interventions most often consist of intensive interventions. The authors aim to provide more insight into the effect of brief self-efficacy interventions on healthy dietary behaviours.Design/methodology/approachIn the present article, two randomized controlled trials are described. In study 1, a brief self-efficacy intervention with multiple self-efficacy techniques integrated on a flyer is tested, and in study 2, an online brief self-efficacy intervention with a single self-efficacy technique is tested.FindingsThe results show that a brief self-efficacy intervention can directly increase vegetable intake and indirectly improve compliance to a diet plan to eat healthier.Originality/valueThese findings suggest that self-efficacy interventions do not always have to be intensive to change dietary behaviours and that brief self-efficacy interventions can also lead to more healthy dietary behaviours.
Highlights
According to global estimates of the World Health Organization (2003), worldwide obesity has nearly tripled since 1975
This paper aims to add to this knowledge by examining brief interventions that exclusively focus on self-efficacy techniques, rather than considering other mechanisms
Our studies showed that a brief intervention targeted towards people’s self-efficacy can directly increase vegetable intake (VI) and indirectly improve compliance to a diet plan to eat more healthily
Summary
According to global estimates of the World Health Organization (2003), worldwide obesity has nearly tripled since 1975. In 2016, 39% of adults aged 18 years and over were overweight and 13% were obese (Obesity and overweight, 2018). This is largely caused by current eating. Danny Taufik, David de Buisonje and Amber Ronteltap. The full terms of this licence may be seen at http://creativecommons. The full terms of this licence may be seen at http://creativecommons. org/licences/by/4.0/legalcode
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