A Community-Based, Participatory, Multi-Component Intervention Increased Sales of Healthy Foods in Local Supermarkets-The Health and Local Community Project (SoL)

Negotiating healthy food retail initiatives in the research project Healthier Choices in Supermarkets: an ethnographic study of a partnership between health intervention researchers, food retailers, and public health advocates

BACKGROUND

Partnerships between researchers and food retailers are advocated as necessary for developing sustainable and effective health-promotion initiatives in supermarkets. However, little is known about how such partnerships evolve and influence different phases of intervention research. This study explores how partnerships between researchers and food retailers develop during the pre-intervention phase and examines the factors that influence both the partnerships and the initiatives they produce.

METHODS

The empirical case used in the study is a partnership between intervention researchers, food retailers, and public health advocates that aimed to develop and test healthy food retail initiatives to make healthy food choices easy for customers. We conducted an ethnographic study covering the pre-intervention phase from the establishment of the partnership in 2019 to the feasibility test of the initiatives in 2021. We used participant observation of meetings and intervention development activities, qualitative interviews with partners, and document analysis of email correspondence and project materials. We analysed the data abductively, drawing on a narrative analytical approach and theoretical concepts of institutional logics and negotiation.

FINDINGS

We present a narrative in six chapters illustrating how market logic dominated the selection and development of healthy food retail initiatives, ultimately compromising the researchers' original research interests. Furthermore, the pre-intervention phase was challenged by an unclear division of roles and responsibilities, misaligned expectations, high staff turnover in the retail organisation, and the Covid-19 pandemic. These challenges resulted in growing mistrust and an asymmetric partnership that undermined the progress and potential of the project.

CONCLUSIONS

Using the lens of institutional logics, we show how differing interests and perspectives between partners - for example regarding health and consumer behaviour - can make it difficult to realize the original research ideas and build a trusting relationship. Overall, this study illustrates the complexity of research partnerships with commercial actors such as food retailers. To develop and implement effective health-promotion initiatives in a food retail setting, researchers must stay mindful of their initial research interest, integrity, and study design, ensuring they are not compromised in the collaboration.

Generation Healthy Kids: Protocol for a cluster-randomized controlled trial of a multi-component and multi-setting intervention to promote healthy weight and wellbeing in 6-11-year-old children in Denmark

BACKGROUND

Childhood obesity can have significant negative consequences for children's wellbeing and long-term health. Prior school-based interventions to prevent child overweight and obesity have shown limited effects, highlighting the necessity for comprehensive approaches addressing complex drivers of childhood obesity. "Generation Healthy Kids" (GHK) is a multi-setting, multi-component intervention to promote healthy weight development, health and wellbeing in Danish children aged 6-11 years. This protocol describes the GHK main trial, which is a cluster-randomized trial evaluating effectiveness and implementation of the GHK intervention.

METHODS

Twenty-four schools from the Capital, Zealand and Southern Denmark Regions are randomly allocated 1:1 to intervention or control. The intervention will run for two school years (18-20 months) from October 2023 to June 2025 and will include children in 1st-3rd grade (approx. n = 1,600). The intervention targets multiple settings, including families, schools, after-school clubs, and local communities. Within four focus areas-diet, physical activity, screen media use, and sleep habits-the intervention incorporates several fixed elements, including a school lunch program and three weekly sessions of physical activity at school. Furthermore, building on whole-systems thinking, the intervention encompasses co-created elements developed in collaboration with local stakeholders, e.g. municipalities, sports clubs and supermarkets. This part of the intervention emphasizes building local capacity and engagement to promote child health. Effectiveness data will be collected from participating children and families at baseline, and at the end of school year one (after 6-8 months) and school year two (after 18-20 months). The primary outcome is the change in fat mass, measured by air-displacement plethysmography, from baseline to end-of-study in the intervention group compared to the control group. This is supplemented with numerous secondary outcomes and other prespecified outcomes related to child health and wellbeing. Furthermore, thorough process evaluation will be performed.

DISCUSSION

GHK combines evidence-based intervention elements targeting multiple settings with a whole-systems approach focusing on capacity building and stakeholder involvement. This novel approach holds promise as an innovative way to promote child health and wellbeing and prevent childhood obesity.

TRIAL REGISTRATION

ClinicalTrials.gov: NCT05940675 (registered on 4 July 2023).

Implementation of health-promoting retail initiatives in the Healthier Choices in Supermarkets Study-qualitative perspectives from a feasibility study

BACKGROUND

Improving food environments like supermarkets has the potential to affect customers' health positively. Scholars suggest researchers and retailers collaborate closely on implementing and testing such health-promoting interventions, but knowledge of the implementation of such interventions is limited. We explore the implementation of four health-promoting food retail initiatives selected and developed by a partnership between a research institution, a large retail group, and a non-governmental organisation.

METHODS

The four initiatives included downsizing of bags for pick'n' mix sweets and soda bottles at the check-out registers, shelf tags promoting healthier breakfast cereal options, and replacing a complimentary bun with a banana offered to children. The initiatives were implemented for 6 weeks (or longer if the store manager allowed it) in one store in Copenhagen, Denmark. Data were collected through observations, informal interviews with customers, and semi-structured interviews with retailers. We conducted a thematic analysis of transcripts and field notes inspired by process evaluation concepts and included quantitative summaries of selected data.

RESULTS

Two out of four initiatives were not implemented as intended. The implementation was delayed due to delivery issues, which also resulted in soda bottles not being downsized as intended. The maintenance of the shelf tags decreased over time. Retailers expressed different levels of acceptability towards the initiatives, with a preference for the complimentary banana for children. This was also the only initiative noticed by customers with both positive and negative responses. Barriers and facilitators of implementation fell into three themes: Health is not the number one priority, general capacity of retailers, and influence of customers and other stakeholders on store operation.

CONCLUSIONS

The retailers' interests, priorities, and general capacity influenced the initiative implementation. Retailers' acceptability of the initiatives was mixed despite their involvement in the pre-intervention phase. Our study also suggests that customer responses towards health-promoting initiatives, as well as cooperation with suppliers and manufacturers in the development phase, may be determining to successful implementation. Future studies should explore strategies to facilitate implementation, which can be applied prior to and during the intervention.

Involving supermarkets in health promotion interventions in the Danish Project SoL. A practice-oriented qualitative study on the engagement of supermarket staff and managers

BACKGROUND

Supermarkets have been suggested as relevant settings for environmental and educational initiatives encouraging healthier shopping and eating decisions, but in the literature, limited attention has been paid to the context, perspectives, and everyday practices of supermarket staff. The aim of this study was to examine the engagement of supermarket staff in a health promotion project from a practice-oriented perspective.

METHODS

The study was based on qualitative data collected in the supermarket setting of Project SoL; a community-based health promotion project in Denmark. We conducted 26 in-depth interviews with store managers and other key staff members in seven participating supermarkets. In addition, we collected data on planning, implementation, and perceptions of supermarket staff of in-store interventions and other project-related activities. These field data included short telephone interviews, observational notes, photos, and audiotapes of meetings. Data were analysed from the perspective of practice theory.

RESULTS

Although supermarket staff found community-based health promotion meaningful to engage in, the study observed that their engagement was challenged by a business mindset, practical routines and structural requirements favouring sales promotion over health promotion. Nevertheless, there were also examples of how health promotion activities and ways of thinking were successfully incorporated in everyday staff practices during and after Project SoL.

CONCLUSIONS

Our findings point to both potentials and challenges for using supermarkets as settings for health promotion. The voluntary engagement of supermarket staff in community-based health projects cannot stand alone but should be supplemented by more long-lasting strategies and policies regulating this and other food environments. Context-sensitive and practice-oriented analyses in local food environments could inform such strategies and policies to make sure they target unwanted elements and practices and not just individual behavior.