Table 1.

Description of the Be Positive Be Healthe six-month weight loss program components.

Technology	Description 1
Be Positive Be Healthe Website Participants had password-protected log-ins	Resources provide advice on weight loss, general healthy eating and physical activity, and the 10 Steps to Success. These website resources remained static over the 6 months.
	An online quiz with individualized email feedback in Week 1 to assess current weight, motivations, weight loss readiness, and behaviours of the 10 Steps to Success. Participants received automated personalized email feedback from their accredited practising dietitian (APD) focusing on: setting a realistic weight loss goal, their energy requirements for weight loss, and their current eating behaviours and physical activity levels compared to the 10 Steps to Success.
	Weight and behaviour change goals for each 10 Steps to Success were recorded in Week 1 following receipt of email feedback.
	Follow-up online quizzes (Weeks 3, 8, 12, 20) monitored progress towards goal achievement and APD provides automated personalized email feedback including virtual rewards (i.e., diamonds).
Self-monitoring app Easy Diet Diary (Xyris Software Australia) Downloaded by participants and accessible via iPhone, iPad or iPod touch (Apple Inc., Cupertino, California, USA).	Used to record weight, energy intake and energy expenditure goals, and to self-monitor weight, food intake and physical activity. Provided automated feedback on nutrient content of food items and energy expended from exercises, as well as cumulative daily totals compared to goals. Participants were recommended to record weight one/week and food intake and physical activity at least four days/week.
Email newsletters, Hypertext Markup Language (HTML) newsletters sent to participants elected email address (Campaign Monitor) Text messages (SMS) Sent to participants elected mobile number (Twilio)	Email newsletters and text messages: provided practical tips to achieve and maintain 10 Steps to Success; reminded participants to complete other program tasks (e.g., quiz, self-monitoring, and goal setting); and promoted self-reward for achievement of goals and self-instruction. During Weeks 1–12 eNewsletters were sent once/week and text messages two/week; from Week 13–26 eNewsletters were sent fortnightly and text messages one/week.
Social Media Participants joined a private Facebook group and followed a private Instagram account using their personal account Content posted using Hootsuite	Provided dynamic content about 10 Steps to Success; created a social network for women to interact with each other (social support) and their APD. Three posts/week made by the APD (one educational, one weekly challenge, one practical tip for overcoming barriers) plus one reminder post on weeks other tasks were to be completed (e.g., online quizzes). Both accounts moderated by the APD and questions answered.

¹ Social cognitive theory/control theory constructs in italics.