Table 3: Summary of findings: Effectiveness of the WhyDairy? intervention and the associated website and parent email components.

 • A school-based dairy intervention with a website component is effective in creating short-term changes in knowledge
 • Changes in knowledge can be maintained up to five-months post-intervention with parent involvement through a targeted email campaign
 • Longer, more intense interventions may be necessary to see changes in dietary behaviour
 • Future research should consider developing targeted interventions with web components to enhance student engagement and more active strategies to reach the home environment, including parents