Oral Presentation Joint Annual Scientific Meeting of the Nutrition Society of NZ and the Nutrition Society of Australia

Self-nudging is not effective for maintaining weight loss achieved through professional support in Type 2 Diabetes (297)

Amy L Wilson 1 , Svetlana Bogomolova 1 , Grant D Brinkworth 2 , Jonathan D Buckley 3
  1. Ehrenberg Bass Institute for Marketing Science, University of South Australia, Adelaide, South Australia, Australia
  2. Food and Nutrition Flagship, CSIRO, Adelaide, South Australia, Australia
  3. Alliance for Research in Exercise, Nutrition and Activity , University of South Australia, Adelaide, South Australia, Australia

Background/Aims: Weight loss can improve health outcomes in type 2 diabetes (T2D), but most people who lose weight are unable to maintain weight loss. We investigated whether a behavioural change approach (“self-nudging”) could assist people with T2D to maintain weight loss.

Methods: 41 patients with T2D who successfully lost weight (~10 kg) after participating in a 6-24 month professionally supported weight loss program were randomised to intervention or control. Controls received printed copies of the Australian diet and physical activity guidelines and monthly reminders to maintain the behaviours that had helped them lose weight. Intervention participants received the same information and instructions as controls, but also received self-nudging items once per month that were designed to prompt them to maintain the behaviours that had helped them lose weight. Weight, body composition (DXA), diet (FFQ) and physical activity (log book) were assessed at baseline, 3 and 6 months.

Results: 33 participants completed the study. Controls regained 27% and intervention regained 37% of initial weight lost during the study period, with no difference between treatments (P=0.45 treatment x time). Similar increases in body fat were also observed (P=0.73 treatment x time). This was despite self-reported dietary energy intake and physical activity levels not differing from the end of the initial weight loss period (P>0.30).

Conclusions: In overweight and obese patients with T2D, following substantial weight loss achieved with professional support, self-nudging was not effective in attenuating the rate of weight regain.

Funding Source(s): N/A