Funding for this research was provided by:
National Health and Medical Research Council (GNT1133090)
Received: 30 November 2020
Accepted: 25 February 2021
First Online: 12 March 2021
: Ethics approval for this study, including interviews, staff and customer surveys was provided by Deakin University Faculty of Health Human Ethics Advisory Group, reference number HEAG-H 65_2015. Interview participants gave written informed consent and anonymous customer and staff survey respondents gave implied consent to participate.
: Not applicable.
: The authors declare that they have no competing interests. IGA supermarket did not provide funding support for this trial.