Randomized controlled trial of a brief research-based intervention promoting fruit and vegetable consumption.
OBJECTIVE
The present study sought to test the efficacy of a brief research-based, leaflet-like intervention to promote eating the recommended daily intake of fruit and vegetables (RDIFV).


METHODS
A controlled, pre- post-test experimental study with random allocation and a 1 week self-report behavioural follow-up was conducted.


METHODS
The intervention employed persuasive communication targeting self-efficacy and intention, and invited participants to form implementation intentions in relation to acquiring and preparing fruit and vegetables for consumption.


RESULTS
Intervention participants had stronger post-intervention intentions to consume the RDIFV, and higher anticipated regret in relation to failing to do so, compared with controls, controlling for pre-intervention scores. At follow-up, the intervention group was found to have eaten more fruit and vegetables and to have consumed the RDIFV more frequently.


CONCLUSIONS
It is concluded that this study supports the previously reported power of implementation intentions to prompt enactment of intentions, and that a brief research-based leaflet-like intervention could result in immediate enhancement of intentions and anticipated regret, and promote greater fruit and vegetable consumption.
Kellar
Ian
I
University of Cambridge. IK261@medschl.cam.ac.uk
Abraham
Charles
C
D000293:Adolescent; D000328:Adult; D001521:Behavior Therapy; D004644:Emotions; D005260:Female; D005518:Food Preferences / Q000523:psychology*; D005638:Fruit; D006293:Health Promotion; D006801:Humans; D033182:Intention; D008297:Male; D008875:Middle Aged; D009751:Nutritional Requirements; D010174:Pamphlets; D010565:Persuasive Communication; D011582:Psychological Theory; D020377:Self Efficacy; D014675:Vegetables