Outcome measures
SECONDARY
The primary outcome was diet quality at baseline and 3, 6 and 12 months, assessed using the ARFS. Secondary outcomes included ARFS subscales (vegetables, fruit, meat, meat alternatives, grains and dairy foods) and percentage energy (%E) from nutrient-rich core foods. Participants were sent up to three email reminders over a 10-d period to complete the AES at each time point. Participants were invited to complete the AES by clicking on the link provided in the reminder email or by following the link on their unique trial dashboard. The ARFS is based on seventy questions within the AES using the core food groups recommended in the Australian Dietary GuidelinesOutcomes related to the secondary aims included engagement, retention and satisfaction. Engagement was measured using study website usage statistics. Engagement measures included completion of the HEQ (Group 1 only), the number of logins to the website, clicks on resources and links, views of personalised dietary feedback and views and completion of goal setting and tracking (Groups 2 and 3). Engagement was also measured by use of the dietitian consultation (Group 3). Retention was assessed as the proportion of participants who completed the AES at 3, 6 and 12 months. Satisfaction with study components was evaluated at 3, 6 and 12 months using a process evaluation questionnaire developed by the research team. Questions were a combination of Likert scales and open questions. Participants were sent email reminders to complete the process evaluation questionnaire on the 