'Healthier options tend to get lost in the noise of online' - Australian shoppers' experiences with online grocery platforms.

OBJECTIVE: We aimed to understand what influences parents' purchasing behaviours when shopping for groceries online and potential ways to improve the healthiness of online grocery platforms. DESIGN: We conducted semi-structured interviews, guided by the Marketing Mix framework. Reflexive thematic analysis was used to analyse data. SETTING: Online interviews were conducted with primary grocery shoppers. PARTICIPANTS: Parents (n 14) or caregivers (n 2) using online grocery platforms at least every 2 weeks. RESULTS: Most participants perceived purchasing healthy food when shopping for groceries online to be more challenging compared to in physical stores. They expressed concerns about the prominence of online marketing for unhealthy food. Participants from lower socio-economic backgrounds often depended on online supermarket catalogues to find price promotions, but healthy options at discounted prices were limited. Across socio-economic groups, fresh items like meat and fruit were preferred to be purchased instore due to concerns about online food quality.Participants believed online grocery platforms should make healthy foods more affordable and supported regulations on supermarket retailers to promote healthy options and limit unhealthy food promotion online. CONCLUSIONS: Participants had varied experiences with online grocery shopping, with both positive and negative aspects. Efforts to improve population diets need to include mechanisms to create health-enabling online grocery retail platforms. Government interventions to restrict marketing of unhealthy foods and promote marketing of healthy options on these platforms warrant investigation.

A systems framework for implementing healthy food retail in grocery settings.

BACKGROUND: Food retailers can be reluctant to initiate healthy food retail activities in the face of a complex set of interrelated drivers that impact the retail environment. The Systems Thinking Approach for Retail Transformation (START) is a determinants framework created using qualitative systems modelling to guide healthy food retail interventions in community-based, health-promoting settings. We aimed to test the applicability of the START map to a suite of distinct healthy food marketing and promotion activities that formed an intervention in a grocery setting in regional Victoria, Australia. METHODS: A secondary analysis was undertaken of 16 previously completed semi-structured interviews with independent grocery retailers and stakeholders. Interviews were deductively coded against the existing START framework, whilst allowing for new grocery-setting specific factors to be identified. New factors and relationships were used to build causal loop diagrams and extend the original START systems map using Vensim. RESULTS: A version of the START map including aspects relevant to the grocery setting was developed ("START-G"). In both health-promoting and grocery settings, it was important for retailers to 'Get Started' with healthy food retail interventions that were supported by a proof-of-concept and 'Focus on the customer' response (with grocery-settings focused on monitoring sales data). New factors and relationships described perceived difficulties associated with disrupting a grocery-setting 'Supply-side status quo' that promotes less healthy food and beverage options. Yet, most grocery retailers discussed relationships that highlighted the potential for 'Healthy food as innovation' and 'Supporting cultural change through corporate social responsibility and leadership'. CONCLUSIONS: Several differences were found when implementing healthy food retail in grocery compared to health promotion settings. The START-G map offers preliminary guidance for identifying and addressing commercial interests in grocery settings that currently promote less healthy foods and beverages, including by starting to address business outcomes and supplier relationships.

Nutritional status of school-age children (5-19 years) in South Asia: A scoping review.

Information on malnutrition for school-age children and adolescents (5-19 years) in South Asia is fragmented and inconsistent, which limits the prioritization of nutrition policies, programmes and research for this age group. This scoping review aimed to synthesize existing evidence on the burden of malnutrition for children and adolescents aged 5-19 years in South Asia, and on interventions to improve their nutritional status. Cochrane Library, EMBASE, Medline and Google Scholar were systematically searched for articles published between January 2016 and November 2022. Eligible studies reported the prevalence of undernutrition, overweight/obesity, micronutrient deficiencies and unhealthy dietary intakes, and interventions that aimed to address these in South Asia. In total, 296 articles met our inclusion criteria. Evidence revealed widespread, yet heterogeneous, prevalence of undernutrition among South Asian children and adolescents: thinness (1.9%-88.8%), wasting (3%-48%), underweight (9.5%-84.4%) and stunting (3.7%-71.7%). A triple burden of malnutrition was evident: the prevalence of overweight and obesity ranged from 0.2% to 73% and 0% to 38% (with rapidly rising trends), respectively, alongside persistent micronutrient deficiencies. Diets often failed to meet nutritional requirements and high levels of fast-food consumption were reported. Education, fortification, supplementation and school feeding programmes demonstrated beneficial effects on nutritional status. Comprehensive and regular monitoring of all forms of malnutrition among children and adolescents, across all countries in South Asia is required. Further, more large-scale intervention research is needed to ensure policy and programmes effectively target and address malnutrition among children and adolescents in South Asia.

Strengthening local government policies to address health inequities: perspectives from Australian local government stakeholders.

BACKGROUND: With their close connection to community and increasing preventive health remit, local governments are well positioned to implement policies and programs to address health inequities. Nevertheless, there is a lack of evidence of equity-focused policy action in this sector. We aimed to understand how local government representatives approach equity in the development and implementation of health and wellbeing policies and programs, and to identify potential enablers for strengthening an equity focus. METHODS: We conducted semi-structured interviews (June 2022-January 2023) with 29 health directorate representatives from 21 local governments in Victoria, Australia. Representatives were recruited from urban, regional and rural local government areas, with varying levels of socioeconomic position. Data was analysed inductively using Braun and Clarke's reflexive thematic analysis, informed by social determinants of health theory and a public policy decision making framework. RESULTS: Local governments approach health equity in different ways including focusing on priority populations, disadvantaged geographic areas, or by targeting the upstream determinants of health, such as housing and employment. Enabling factors for more equity-oriented local government policy action included those internal to local governments: (i) having a clear conceptualisation of equity, (ii) fostering a strong equity-centric culture, and (iii) developing organisational-wide competency in health equity. External factors related to key stakeholder groups that support and/or influence local governments included: (iv) strong support from community, (v) state government leadership and legislation, and (vi) supportive local partners, networks and NGO's. CONCLUSIONS: Local governments have a responsibility to implement policies and programs that improve health and reduce health inequities. Local government's capacity to leverage resources, structures, processes and relationships, internally and across sectors and community, will be key to strengthening equity-oriented local government health policies and programs.

Interdisciplinary insights on the future of food systems research: perspectives from the next generation of research leaders.

Our dominant food system is a primary driver of worsening human and planetary health. Held in March 2022, the Public Health Association of Australia's Food Futures Conference was an opportunity for people working across the food system to connect and advocate for a comprehensive, intersectoral, whole-of-society food and nutrition policy in Australia to attenuate these issues. Conference themes included food systems for local and global good; ecological nutrition; social mobilisation for planetary and public good; food sovereignty and food equity. Students and young professionals are integral in transforming food systems, yet they are under-represented in the academic workforce, across publishing, scientific societies and conference plenaries. A satellite event was held to platform initiatives from early career researchers (ECR) in areas integral for improving planetary and public good. The research topics discussed in this commentary reflect sub-themes of the conference under investigation by ECR: food systems governance and regulation; local food policies; commercial determinants of health; sustainable healthy diets; and food equity and sovereignty.

Costing recommended (healthy) and current (unhealthy) diets in urban and inner regional areas of Australia using remote price collection methods.

OBJECTIVE: To compare the cost and affordability of two fortnightly diets (representing the national guidelines and current consumption) across areas containing Australia's major supermarkets. DESIGN: The Healthy Diets Australian Standardised Affordability and Pricing protocol was used. SETTING: Price data were collected online and via phone calls in fifty-one urban and inner regional locations across Australia. PARTICIPANTS: Not applicable. RESULTS: Healthy diets were consistently less expensive than current (unhealthy) diets. Nonetheless, healthy diets would cost 25-26 % of the disposable income for low-income households and 30-31 % of the poverty line. Differences in gross incomes (the most available income metric which overrepresents disposable income) drove national variations in diet affordability (from 14 % of the median gross household incomes in the Australian Capital Territory and Northern Territory to 25 % of the median gross household income in Tasmania). CONCLUSIONS: In Australian cities and regional areas with major supermarkets, access to affordable diets remains problematic for families receiving low incomes. These findings are likely to be exacerbated in outer regional and remote areas (not included in this study). To make healthy diets economically appealing, policies that reduce the (absolute and relative) costs of healthy diets and increase the incomes of Australians living in poverty are required.

The 'Eat Well @ IGA' healthy supermarket randomised controlled trial: process evaluation.

BACKGROUND: Successful implementation and long-term maintenance of healthy supermarkets initiatives are crucial to achieving potential population health benefits. Understanding barriers and enablers of implementation of real-world trials will enhance wide-scale implementation. This process evaluation of a healthy supermarket intervention sought to describe (i) customer, retailer and stakeholder perspectives on the intervention; (ii) intervention implementation; and (iii) implementation barriers and enablers. METHODS: Eat Well @ IGA was a 12-month randomised controlled trial conducted in 11 Independent Grocers of Australia (IGA) chain supermarkets in regional Victoria, Australia (5 intervention and 6 wait-listed control stores). Intervention components included trolley and basket signage, local area and in-store promotion, and shelf tags highlighting the healthiest packaged foods. A sequential mixed-methods process evaluation was undertaken. Customer exit surveys investigated demographics, and intervention recall and perceptions. Logistic mixed-models estimated associations between customer responses and demographics, with store as random effect. Supermarket staff surveys investigated staff demographics, interactions with customers, and intervention component feedback. Semi-structured stakeholder interviews with local government, retail and academic partners explored intervention perceptions, and factors which enabled or inhibited implementation, maintenance and scalability. Interviews were inductively coded to identify key themes. RESULTS: Of 500 customers surveyed, 33%[95%CI:23,44] recalled the Eat Well @ IGA brand and 97%[95%CI:93,99] agreed that IGA should continue its efforts to encourage healthy eating. The 82 staff surveyed demonstrated very favourable intervention perceptions. Themes from 19 interviews included that business models favour sales of unhealthy foods, and that stakeholder collaboration was crucial to intervention design and implementation. Staff surveys and interviews highlighted the need to minimise staff time for project maintenance and to regularly refresh intervention materials to increase and maintain salience among customers. CONCLUSIONS: This process evaluation found that interventions to promote healthy diets in supermarkets can be perceived as beneficial by retailers, customers, and government partners provided that barriers including staff time and intervention salience are addressed. Collaborative partnerships in intervention design and implementation, including retailers, governments, and academics, show potential for encouraging long-term sustainability of interventions. TRIAL REGISTRATION: ISRCTN, ISRCTN37395231 Registered 4 May 2017.

Streamlined data-gathering techniques to estimate the price and affordability of healthy and unhealthy diets under different pricing scenarios.

OBJECTIVE: To determine the reliability of streamlined data-gathering techniques for examining the price and affordability of a healthy (recommended) and unhealthy (current) diet. We additionally estimated the price and affordability of diets across socio-economic areas and quantified the influence of different pricing scenarios. DESIGN: Following the Healthy Diets Australian Standardised Affordability and Pricing (ASAP) protocol, we compared a cross-sectional sample of food and beverage pricing data collected using online data and phone calls (lower-resource streamlined techniques) with data collected in-store from the same retailers. SETTING: Food and beverage prices were collected from major supermarkets, fast food and alcohol retailers in eight conveniently sampled areas in Victoria, Australia (n 72 stores), stratified by area-level deprivation and remoteness. PARTICIPANTS: This study did not involve human participants. RESULTS: The biweekly price of a healthy diet was on average 21 % cheaper ($596) than an unhealthy diet ($721) for a four-person family using the streamlined techniques, which was comparable with estimates using in-store data (healthy: $594, unhealthy: $731). The diet price differential did not vary considerably across geographical areas (range: 18-23 %). Both diets were estimated to be unaffordable for families living on indicative low disposable household incomes and below the poverty line. The inclusion of generic brands notably reduced the prices of healthy and unhealthy diets (≥20 %), rendering both affordable against indicative low disposable household incomes. Inclusion of discounted prices marginally reduced diet prices (3 %). CONCLUSIONS: Streamlined data-gathering techniques are a reliable method for regular, flexible and widespread monitoring of the price and affordability of population diets in areas where supermarkets have an online presence.

Retailer-led healthy pricing interventions: a pilot study within aquatic and recreation centres in Victoria, Australia.

This study aimed to pilot the feasibility, acceptability and effectiveness of three co-developed healthy food and beverage pricing interventions in a community retail setting. Aquatic and recreation centres in Victoria, Australia were recruited to co-develop and pilot pricing interventions within their onsite cafés, for 15 weeks from January 2019. A mixed method intervention evaluation was conducted. Interviews were conducted with food retail managers to understand the factors perceived to influence implementation, maintenance and effectiveness. Customer surveys assessed support for, and awareness of, interventions. Interrupted time series analysis estimated the impact of pricing interventions on food and beverage sales. Three centres each implemented a unique intervention: (i) discounted healthy bundles ('healthy combination deals'), (ii) offering deals at specific times of the day ('healthy happy hours') and (iii) increasing the prices of selected unhealthy options and reducing the prices of selected healthier options ('everyday pricing changes'). Café team leaders did not identify any significant challenges to implementation or maintenance of interventions, though low staff engagement was identified as potentially influencing the null effect on sales for healthy combination deals and healthy happy hours interventions. Customers reported low levels of awareness and high levels of support for interventions. Everyday pricing changes resulted in a significant decrease in sales of unhealthy items during the intervention period, though also resulted in a decrease in café revenue. Co-developed healthy food and beverage pricing interventions can be readily implemented with broad customer support. Everyday pricing changes have demonstrated potential effectiveness at reducing unhealthy purchases.

Factors influencing sweet drink consumption among preschool-age children: A qualitative analysis.

ISSUE ADDRESSED: Consumption of high sugar foods and drinks are key risk factors for childhood obesity and dental decay. Sweet drinks are the single greatest contributor to the free sugars consumed by Australian children. Little is known about the factors influencing consumption of sweet drinks, particularly among preschool-age children. METHODS: Focus groups and semi-structured interviews conducted with parents and grandparents (n = 25) residing in different socio-economic areas across metropolitan and regional Victoria, Australia. Thematic analysis identified the factors influencing sweet drink consumption, which were then aligned with the socio-ecological model. RESULTS: At an individual level, health knowledge, health beliefs, and parenting skills and confidence influenced drink choices. At the social level, peer and family influence, and social and cultural norms emerged as influential. At the environmental level, sweet drink availability, targeted marketing, drink prices and settings-based policies influenced drink choices. Strategies identified by participants to support healthier drink choices included health education at the individual level; positive role modelling at the social level; and restricting unhealthy marketing, improved access to water, decreased availability of sweet drinks and price modification at the environmental level. CONCLUSION: Sweet drink consumption among preschool-age children is influenced by multiple factors across all domains of the socio-ecological model. Parents and grandparents are calling for education, healthy environments and supportive policies. SO WHAT?: In contrast to common rhetoric, children's sweet drink consumption is often influenced by factors beyond parental control. A multi-component strategy is required to support parents and grandparents in their efforts to make healthy choices for their children.

The potential cost-effectiveness of mandatory restrictions on price promotions for sugar-sweetened beverages in Australia.

BACKGROUND: Restricting price promotions on unhealthy foods and beverages has been identified by governments as a promising approach for improving population diets. Using a limited societal perspective, this study assessed the potential cost-effectiveness of mandatory restrictions on price promotions for sugar-sweetened beverages (SSBs) in Australia. METHODS: Australian dietary consumption data, together with UK data on the SSB sales uplift associated with price promotions, were used to estimate reductions in SSB purchases and consequent changes in body mass index following the intervention. A multi-state, multiple-cohort Markov model was used to estimate the obesity-related health and cost impacts over the lifetime of the 2010 Australian population. Costs included passing legislation, assisting retailer implementation, and compliance monitoring. RESULTS: The intervention was estimated to result in a mean change in daily energy intake of -12.52 kJ (95% Uncertainty Interval, UI: -15.91 to -9.58) per person, which translated to a mean body weight change of -0.11 kg (95%UI: -0.14 to -0.08) per person. Total Health Adjusted Life Years gained were estimated at 34,260 (95%UI: 24,922-45,504). Estimated costs were AUD17.0 million, with estimated healthcare cost savings of AUD376.0 million. The intervention was considered dominant (cost-saving and health promoting). The intervention remained cost-effective if retailers reduced average non-discounted SSB prices in response to the intervention by less than 5.36%. CONCLUSIONS: Restricting price promotions on SSBs is likely to be highly cost-effective, although its impact would depend on how industry and shoppers respond. Although Australian data are used, these results are likely to be transferable and highly relevant to the UK context. Policies for restricting price promotions should be considered as part of a comprehensive obesity prevention strategy.

Do purchases of price promoted and generic branded foods and beverages vary according to food category and income level? Evidence from a consumer research panel.

Price is a key determinant of food choice, particularly for low-income households who may be more sensitive to price-lowering strategies such as price promotions and generic/retailer-owned brands. Price-lowering strategies may therefore represent important policy targets to improve population nutrition and reduce inequities. This study aimed to describe household purchasing patterns of price promoted and generic branded foods and beverages in New Zealand (2016-2017). One year of grocery purchase data from a national consumer research panel in New Zealand (n = 1778 households) were analysed. Purchases were classified by processing level and food type. Linear mixed models were fitted to estimate the mean proportion of annual household purchases (unique items and volumes (kg/L)) that were price promoted or generic branded (overall and by food category), and to assess whether purchasing patterns were modified by income level. On average, price promoted products constituted 50% (95%CIs; 49,51) of all unique annual household grocery items purchased. Fifty-nine percent (95%CIs; 58,60) of processed, 55% (95%CIs; 54,56) of ultra-processed, 45% (95%CIs; 44,46) of unprocessed and 45% (95%CIs; 44,46) of ingredient purchases were price promoted. By volume, the proportion of purchases that were price promoted was highest for meat (65%[95%CIs; 64,66]), sugar-sweetened beverages (64%[95%CIs; 62,65]), dairy foods (64%[95%CIs; 63,66]), confectionary (64%[95%CIs; 63,66]), snack foods (63%[95%CIs; 61,64]), oils (61%[95%CIs; 60,62]) and non-sugar-sweetened beverages (60%[95%CIs; 58,62]), and lowest for dairy beverages (30%[95%CIs; 28,31]), sugar/honey (33%[95%CIs; 32,35]) and sauces/spreads (39%[95%CIs; 37,40]). On average, generic brands constituted 10% (95%CIs; 9,10) of all household purchases. Overall, a significantly greater proportion of purchases made by low and middle-income households were price promoted and generic branded compared to high-income households (p < 0.001 for both), a pattern generally observed across food categories. This study supports recent calls to address unhealthy food and beverage price promotions in comprehensive policy strategies aiming to improve population diets and weight.

Recreation centre managers' perceptions of pricing interventions to promote healthy eating.

Retailers have the capacity to improve the food and beverage environment by making healthier options more affordable and attractive for their consumers. The perspectives of retailers on feasible and acceptable pricing strategies are not known. The aim of this study was to understand retailers' perceptions of factors that are relevant to feasible and acceptable health-promoting food and beverage pricing interventions. A convenience sample of 11 aquatic and recreation centre managers in Victoria, Australia was recruited to participate in semi-structured interviews. We took a pragmatic approach with the aim of understanding retailers' perceptions of factors that affect the feasibility and acceptability of pricing interventions within their facilities. Thematic analysis was used to synthesize and interpret retailers' perceptions of pricing interventions. Key themes identified were: structural and organizational characteristics (the internal and external characteristics of aquatic and recreation centres), characteristics of feasible pricing changes (type, magnitude and products targeted by pricing strategies) and business outcomes (profits and customer feedback). Results suggest that pricing interventions to promote healthy food and beverage choices can be feasible and acceptable to retailers, though contextual considerations are likely to be important. Future studies should use these findings to design interventions most likely to be acceptable to retailers, work with retailers to implement health-promoting food and beverage pricing interventions, evaluate the impact on business outcomes including customer perspectives and profitability, and test transferability to other retail settings.

Price Promotions by Food Category and Product Healthiness in an Australian Supermarket Chain, 2017-2018.

Objectives. To examine the prevalence and magnitude of price promotions in a major Australian supermarket and how they differ between core (healthy) and discretionary (less healthy) food categories.Methods. Weekly online price data (regular retail price, discount price, and promotion type) on 1579 foods were collected for 1 year (April 2017 to April 2018) from the largest Australian supermarket chain. Products audited were classified according to Australian Dietary Guidelines definitions of core and discretionary foods and according to their Health Star Rating (a government-endorsed nutrient profiling scheme).Results. On average, 15.1% (95% confidence interval [CI] = 14.7%, 15.3%) of core foods and 28.8% (95% CI = 28.6%, 29.0%) of discretionary foods were price promoted during a given week. Average discounts were -15.4% (95% CI = -16.4, -14.4) for core products and -25.9% (95% CI = -26.8, -25.1) for discretionary products. The percentage of products on price promotion and the size of the discount were larger for products with a lower Health Star Rating (P < .05).Conclusions. Price promotions were more prevalent and greater in magnitude for discretionary foods than for core foods. Policies to reduce the prevalence and magnitude of price promotions on discretionary foods could improve the healthiness of food purchased from supermarkets.

Engaging a disadvantaged community with a fruit and vegetable box scheme.

ISSUE ADDRESSED: Interventions which target the determinants of unhealthy diets are required to promote healthy eating and reduce the burdens of diet-related diseases such as cardiovascular disease, diabetes and some cancers. METHODS: Qualitative interviews (n = 12) were conducted to explore the perspectives and experiences of local stakeholders regarding the implementation and uptake of a healthy eating initiative (a fruit and vegetable box scheme) in a disadvantaged, regional community. RESULTS: Factors affecting the community's engagement included marketing strategies, customer experiences, a community-centred approach, partnerships and logistics. CONCLUSIONS: Community engagement is often essential for an intervention to be effective. The factors which influence community engagement should be considered during planning, especially when targeting disadvantaged groups. SO WHAT?: Behavioural change interventions may continue to be met with limited success if community engagement and the overarching structural barriers to healthy eating are not addressed.

The rise and fall of the Queensland Government policy to restrict unhealthy food and alcohol advertising on publicly owned assets.

OBJECTIVE: To examine the strategies employed by opponents of the Queensland Government's policy to restrict unhealthy food and alcohol advertising on publicly owned assets and identify which of the opposing arguments appeared to influence the policy outcomes. METHODS: Retrospective qualitative policy analysis case study informed by the Policy Dystopia Model of corporate political activity. We used qualitative content analysis to examine data from stakeholder submissions to the 'Advertising content on Queensland Government advertising spaces' policies (v1 and 2), and Minister for Health's diaries. RESULTS: Stakeholders from the food, beverage, alcohol and advertising industries and several not-for-profit health organisations opposed the policy. Industry actors used discursive strategies, coalition management (including co-option of not-for-profit health organisations), information management and direct involvement with policy makers to communicate their arguments against the policy. The second version of the policy was weaker regarding scope and key policy provisions, reflecting the arguments of industry actors. CONCLUSIONS: Influence from industries with a clear conflict of interest should be minimised throughout policy development to ensure public health is prioritised over corporate gain. IMPLICATIONS FOR PUBLIC HEALTH: Our findings can support other jurisdictions to prepare for industry opposition when designing policies to restrict unhealthy food and alcohol marketing.

The potential influence of the digital food retail environment on health: A systematic scoping review of the literature.

INTRODUCTION: The digital food retail environment (defined in this study as a digital platform, app or website where food can be purchased by individuals for personal consumption) is an emerging component of the wider food system. We aimed to systematically search and review the literature to understand the potential influence of the digital food retail environment on population diets and health. METHODS: Four databases (across health, business, and marketing) and grey literature were searched using terms relating to "food and beverages," "digital," and "purchasing." Identified studies were included if they examined any aspect of the digital food retail environment where outcomes were examined with a health-related focus and were published before September 2023. All study designs were included (quantitative, qualitative, observational, and experimental). Reviews and conference abstracts were excluded. RESULTS: We identified 21,382 studies, of which 57 articles were eligible for inclusion. Of the 57 included studies, 30 studies examined online grocery retail, 22 examined online food delivery platforms, and five examined meal kit subscription services. Of the 30 studies examining online grocery retail, six studies reported that customers believed they purchased fewer unhealthy food and beverages when shopping online, compared with shopping in-store. Nevertheless, customers also reported that their ability to choose healthy foods and beverages was reduced when shopping online due to difficulty in product comparison. Studies that examined online food delivery platforms primarily found that they promoted unhealthy foods and beverages more often than healthy options, through extensive use of marketing practices such as price discounts and images, and that unhealthy food offerings on these platforms dominate. Meal kit subscription services offered mostly healthy meals, with studies suggesting that these types of services may help individuals alleviate some of their "mental load" and stress related to cooking meals for their families. CONCLUSIONS: The literature describing the digital food retail environment was found to be diverse, with different aspects having potential to impact health in different ways. Some evidence suggests that online grocery retail and meal kit subscription services may have positive population dietary impacts, whereas online food delivery platforms appear likely to promote unhealthy food purchasing. However, the current evidence base is fragmented, with many knowledge gaps. Further research is required to understand the influence of the digital food retail environment on population diets and how these environments can be designed to support healthy food choices.