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Brooker PG, Howlett CA, Brindal E, Hendrie GA. Strategies associated with improved healthiness of consumer purchasing in supermarket interventions: a systematic overview of reviews and evaluation of primary articles. Front Public Health 2024; 12:1334324. [PMID: 38983251 PMCID: PMC11232481 DOI: 10.3389/fpubh.2024.1334324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 06/03/2024] [Indexed: 07/11/2024] Open
Abstract
Background Growing evidence suggests that it is possible to change the retail food environment to enable healthier choices via in-store interventions. It has been difficult to draw clear conclusions as to which interventions are most effective in positively influencing consumer purchasing behaviour given the significant heterogeneity within the food retail research literature. The aim of this study was to (1) summarise current high-quality systematic, scoping, and/or narrative reviews (Part I: overview of reviews); and (2) synthesise high-quality original research, to understand the range, types and effectiveness of strategies implemented in food retail settings (Part II: evaluation of primary studies). Methods To identify reviews describing the effects of intervention strategies aiming to improve the healthiness of consumer purchasing in supermarkets, a systematic search across seven electronic databases was completed in April 2023. The methodological quality of reviews was assessed using the risk of bias in systematic reviews for systematic and scoping reviews, and the Scale for the Assessment of Narrative Review Articles for narrative reviews. High-quality reviews were further inspected and synthesised narratively (Part I). Next, to understand strategies associated with improved healthiness of consumer purchasing high-quality, primary articles from high-quality reviews identified in Part I were retrieved, and the strategies implemented within these interventions were summarised (Part II). Results Thirty-eight reviews met the inclusion criteria for Part I; two-thirds (n = 25, 66%) were rated as high-quality (66%). These reviews indicated that pricing strategies had the greatest proportion of reported positive or promising effects on outcomes (n = 8 of 11 reviews, 73%). Twenty reviews met the inclusion criteria for Part II and the 771 primary articles from these reviews were screened with 23 high-quality primary articles included in analysis. Findings indicated that promotional strategies in combination with another strategy appeared to be most successful among regular shoppers (the general population), whereas pricing was most successful in low socio-economic status and rural sub-groups. Conclusion Promotion, pricing and prompting were the most commonly tested strategies across the overview of reviews and review of primary articles. Promotion, in combination with other strategies, and pricing appear to be most promising, but the effectiveness of pricing strategies may vary by sub-groups of the population. How pricing and promotion in combination with other strategies can be implemented responsibly and sustainably to change purchase habits towards healthier items should be explored further. Systematic Review registration OSF, https://osf.io/jyg73/.
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Affiliation(s)
- Paige G. Brooker
- Health and Biosecurity, Commonwealth Scientific and Industrial Research Organisation (CSIRO), Adelaide, SA, Australia
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Luick M, Bandy L, Piernas C, Jebb SA, Pechey R. Do promotions of healthier or more sustainable foods increase sales? Findings from three natural experiments in UK supermarkets. BMC Public Health 2024; 24:1658. [PMID: 38907224 PMCID: PMC11191299 DOI: 10.1186/s12889-024-19080-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Accepted: 06/07/2024] [Indexed: 06/23/2024] Open
Abstract
BACKGROUND Dietary changes are necessary to improve population health and meet environmental sustainability targets. Here we analyse the impact of promotional activities implemented in UK supermarkets on purchases of healthier and more sustainable foods. METHODS Three natural experiments examined the impact of promotional activities on sales of a) no-added-sugar (NAS) plant-based milk (in 199 stores), b) products promoted during 'Veganuary' (in 96 stores), and c) seasonal fruit (in 100 non-randomised intervention and 100 matched control stores). Data were provided on store-level product sales, in units sold and monetary value (£), aggregated weekly. Predominant socioeconomic position (SEP) of the store population was provided by the retailer. Analyses used interrupted time series and multivariable hierarchical mixed-effects models. RESULTS Sales of both promoted and total NAS plant-based milks increased significantly during the promotional period (Promoted:+126 units, 95%CI: 105-148; Overall:+307 units, 95%CI: 264-349). The increase was greater in stores with predominately low SEP shoppers. During Veganuary, sales increased significantly for plant-based foods on promotion (+60 units, 95%CI: 37-84), but not for sales of plant-based foods overall (dairy alternatives: -1131 units, 95%CI: -5821-3559; meat alternatives: 1403 units, 95%CI: -749-3554). There was no evidence of a change in weekly sales of promoted seasonal fruit products (assessed via ratio change in units sold: 0.01, 95%CI: 0.00-0.02), and overall fruit category sales slightly decreased in intervention stores relative to control (ratio change in units sold: -0.01, 95%CI: -0.01-0.00). CONCLUSION During promotional campaigns there was evidence that sales of plant-based products increased, but not seasonal fruits. There was no evidence for any sustained change beyond the intervention period.
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Affiliation(s)
- Madison Luick
- Nuffield Department of Primary Care Health Sciences, Radcliffe Observatory Quarter, University of Oxford, Oxford, OX2 6GG, UK
| | - Lauren Bandy
- Nuffield Department of Primary Care Health Sciences, Radcliffe Observatory Quarter, University of Oxford, Oxford, OX2 6GG, UK
| | - Carmen Piernas
- Department of Biochemistry and Molecular Biology II, Institute of Nutrition and Food Technology (INYTA), Center for Biomedical Research (CIBM), Biosanitary Research Institute (IBS), University of Granada, Granada, Spain
| | - Susan A Jebb
- Nuffield Department of Primary Care Health Sciences, Radcliffe Observatory Quarter, University of Oxford, Oxford, OX2 6GG, UK
| | - Rachel Pechey
- Nuffield Department of Primary Care Health Sciences, Radcliffe Observatory Quarter, University of Oxford, Oxford, OX2 6GG, UK.
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Ravandi B, Mehler P, Ispirova G, Barabási AL, Menichetti G. GroceryDB: Prevalence of Processed Food in Grocery Stores. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2024:2022.04.23.22274217. [PMID: 38883708 PMCID: PMC11177926 DOI: 10.1101/2022.04.23.22274217] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2024]
Abstract
The offering of grocery stores is a strong driver of consumer decisions, shaping their diet and long-term health. While highly processed food like packaged products, processed meat, and sweetened soft drinks have been increasingly associated with unhealthy diet, information on the degree of processing characterizing an item in a store is not straightforward to obtain, limiting the ability of individuals to make informed choices. Here we introduce GroceryDB, a database with over 50,000 food items sold by Walmart, Target, and Wholefoods, unveiling how big data can be harnessed to empower consumers and policymakers with systematic access to the degree of processing of the foods they select, and the potential alternatives in the surrounding food environment. The wealth of data collected on ingredient lists and nutrition facts allows a large scale analysis of ingredient patterns and degree of processing stratified by store, food category, and price range. We find that the nutritional choices of the consumers, translated as the degree of food processing, strongly depend on the food categories and grocery stores. Moreover, the data allows us to quantify the individual contribution of over 1,000 ingredients to ultra-processing. GroceryDB and the associated http://TrueFood.Tech/ website make this information accessible, guiding consumers toward less processed food choices while assisting policymakers in reforming the food supply.
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Affiliation(s)
- Babak Ravandi
- Network Science Institute and Department of Physics, Northeastern University, Boston, USA
| | - Peter Mehler
- Department of Computer Science, IT University of Copenhagen, Copenhagen, Denmark
| | - Gordana Ispirova
- Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, USA
| | - Albert-László Barabási
- Network Science Institute and Department of Physics, Northeastern University, Boston, USA
- Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, USA
- Department of Network and Data Science, Central European University, Budapest, Hungary
| | - Giulia Menichetti
- Network Science Institute and Department of Physics, Northeastern University, Boston, USA
- Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, USA
- Harvard Data Science Initiative, Harvard University, Boston, USA
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Ferreira SRG, Macotela Y, Velloso LA, Mori MA. Determinants of obesity in Latin America. Nat Metab 2024; 6:409-432. [PMID: 38438626 DOI: 10.1038/s42255-024-00977-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 01/04/2024] [Indexed: 03/06/2024]
Abstract
Obesity rates are increasing almost everywhere in the world, although the pace and timing for this increase differ when populations from developed and developing countries are compared. The sharp and more recent increase in obesity rates in many Latin American countries is an example of that and results from regional characteristics that emerge from interactions between multiple factors. Aware of the complexity of enumerating these factors, we highlight eight main determinants (the physical environment, food exposure, economic and political interest, social inequity, limited access to scientific knowledge, culture, contextual behaviour and genetics) and discuss how they impact obesity rates in Latin American countries. We propose that initiatives aimed at understanding obesity and hampering obesity growth in Latin America should involve multidisciplinary, global approaches that consider these determinants to build more effective public policy and strategies, accounting for regional differences and disease complexity at the individual and systemic levels.
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Affiliation(s)
| | - Yazmín Macotela
- Instituto de Neurobiología, Universidad Nacional Autónoma de México, UNAM Campus-Juriquilla, Querétaro, Mexico
| | - Licio A Velloso
- Obesity and Comorbidities Research Center, Faculty of Medical Sciences, Universidade Estadual de Campinas, Campinas, Brazil
| | - Marcelo A Mori
- Institute of Biology, Universidade Estadual de Campinas, Campinas, Brazil.
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Piernas C. Supermarket interventions to improve dietary and lifestyle behaviours: what is the key to success? BMC Med 2024; 22:87. [PMID: 38413958 PMCID: PMC10897988 DOI: 10.1186/s12916-024-03306-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Accepted: 02/15/2024] [Indexed: 02/29/2024] Open
Affiliation(s)
- Carmen Piernas
- Department of Biochemistry and Molecular Biology II, Faculty of Pharmacy, Centre for Biomedical Research, Institute of Nutrition and Food Technology, Biosanitary Research Institute, University of Granada, Granada, Spain.
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Stuber JM, Mackenbach JD, de Bruijn GJ, Gillebaart M, Hoenink JC, Middel CNH, de Ridder DTD, van der Schouw YT, Smit EG, Velema E, Vos AL, Waterlander WE, Lakerveld J, Beulens JWJ. Real-world nudging, pricing, and mobile physical activity coaching was insufficient to improve lifestyle behaviours and cardiometabolic health: the Supreme Nudge parallel cluster-randomised controlled supermarket trial. BMC Med 2024; 22:52. [PMID: 38303069 PMCID: PMC10835818 DOI: 10.1186/s12916-024-03268-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Accepted: 01/22/2024] [Indexed: 02/03/2024] Open
Abstract
BACKGROUND Context-specific interventions may contribute to sustained behaviour change and improved health outcomes. We evaluated the real-world effects of supermarket nudging and pricing strategies and mobile physical activity coaching on diet quality, food-purchasing behaviour, walking behaviour, and cardiometabolic risk markers. METHODS This parallel cluster-randomised controlled trial included supermarkets in socially disadvantaged neighbourhoods across the Netherlands with regular shoppers aged 30-80 years. Supermarkets were randomised to receive co-created nudging and pricing strategies promoting healthier purchasing (N = 6) or not (N = 6). Nudges targeted 9% of supermarket products and pricing strategies 3%. Subsequently, participants were individually randomised to a control (step counter app) or intervention arm (step counter and mobile coaching app) to promote walking. The primary outcome was the average change in diet quality (low (0) to high (150)) over all follow-up time points measured with a validated 40-item food frequency questionnaire at baseline and 3, 6, and 12 months. Secondary outcomes included healthier food purchasing (loyalty card-derived), daily step count (step counter app), cardiometabolic risk markers (lipid profile and HbA1c via finger prick, and waist circumference via measuring tape), and supermarket customer satisfaction (questionnaire-based: very unsatisfied (1) to very satisfied (7)), evaluated using linear mixed-models. Healthy supermarket sales (an exploratory outcome) were analysed via controlled interrupted time series analyses. RESULTS Of 361 participants (162 intervention, 199 control), 73% were female, the average age was 58 (SD 11) years, and 42% were highly educated. Compared to the control arm, the intervention arm showed no statistically significant average changes over time in diet quality (β - 1.1 (95% CI - 3.8 to 1.7)), percentage healthy purchasing (β 0.7 ( - 2.7 to 4.0)), step count (β - 124.0 (- 723.1 to 475.1), or any of the cardiometabolic risk markers. Participants in the intervention arm scored 0.3 points (0.1 to 0.5) higher on customer satisfaction on average over time. Supermarket-level sales were unaffected (β - 0.0 (- 0.0 to 0.0)). CONCLUSIONS Co-created nudging and pricing strategies that predominantly targeted healthy products via nudges were unable to increase healthier food purchases and intake nor improve cardiometabolic health. The mobile coaching intervention did not affect step count. Governmental policy measures are needed to ensure more impactful supermarket modifications that promote healthier purchases. TRIAL REGISTRATION Dutch Trial Register ID NL7064, 30 May 2018, https://www.onderzoekmetmensen.nl/en/trial/20990.
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Affiliation(s)
- Josine M Stuber
- Epidemiology and Data Science, Amsterdam UMC Location Vrije Universiteit Amsterdam, De Boelelaan 1117, Amsterdam, the Netherlands.
- Amsterdam Public Health, Amsterdam, the Netherlands.
- Upstream Team, www.upstreamteam.nl, Amsterdam UMC, De Boelelaan 1117, Amsterdam, the Netherlands.
| | - Joreintje D Mackenbach
- Epidemiology and Data Science, Amsterdam UMC Location Vrije Universiteit Amsterdam, De Boelelaan 1117, Amsterdam, the Netherlands
- Amsterdam Public Health, Amsterdam, the Netherlands
- Upstream Team, www.upstreamteam.nl, Amsterdam UMC, De Boelelaan 1117, Amsterdam, the Netherlands
| | - Gert-Jan de Bruijn
- Department of Communication Science, University of Antwerp, St-Jacobstraat 2, 2000, Antwerp, Belgium
| | - Marleen Gillebaart
- Department of Social, Health and Organizational Psychology, Utrecht University, Utrecht, the Netherlands
| | - Jody C Hoenink
- Centre for Diet and Activity Research, MRC Epidemiology Unit, School of Clinical Medicine, Institute of Metabolic Science, University of Cambridge, Cambridge, CB2 0QQ, UK
| | - Cédric N H Middel
- Epidemiology and Data Science, Amsterdam UMC Location Vrije Universiteit Amsterdam, De Boelelaan 1117, Amsterdam, the Netherlands
- Amsterdam Public Health, Amsterdam, the Netherlands
- Upstream Team, www.upstreamteam.nl, Amsterdam UMC, De Boelelaan 1117, Amsterdam, the Netherlands
| | - Denise T D de Ridder
- Department of Social, Health and Organizational Psychology, Utrecht University, Utrecht, the Netherlands
| | - Yvonne T van der Schouw
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht University, Universiteitsweg 100, Utrecht, the Netherlands
| | - Edith G Smit
- Amsterdam School of Communication Research, University of Amsterdam, Nieuwe Achtergracht 166, Amsterdam, the Netherlands
| | - Elizabeth Velema
- Netherlands Nutrition Centre (Voedingscentrum), Bezuidenhoutseweg 105, The Hague, The Netherlands
| | - Anne L Vos
- Amsterdam School of Communication Research, University of Amsterdam, Nieuwe Achtergracht 166, Amsterdam, the Netherlands
| | - Wilma E Waterlander
- Amsterdam Public Health, Amsterdam, the Netherlands
- Public and Occupational Health, Amsterdam UMC Location University of Amsterdam, Meibergdreef 9, Amsterdam, the Netherlands
| | - Jeroen Lakerveld
- Epidemiology and Data Science, Amsterdam UMC Location Vrije Universiteit Amsterdam, De Boelelaan 1117, Amsterdam, the Netherlands
- Amsterdam Public Health, Amsterdam, the Netherlands
- Upstream Team, www.upstreamteam.nl, Amsterdam UMC, De Boelelaan 1117, Amsterdam, the Netherlands
| | - Joline W J Beulens
- Epidemiology and Data Science, Amsterdam UMC Location Vrije Universiteit Amsterdam, De Boelelaan 1117, Amsterdam, the Netherlands
- Amsterdam Public Health, Amsterdam, the Netherlands
- Upstream Team, www.upstreamteam.nl, Amsterdam UMC, De Boelelaan 1117, Amsterdam, the Netherlands
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht University, Universiteitsweg 100, Utrecht, the Netherlands
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Piernas C, Lee C, Hobson A, Harmer G, Payne Riches S, Noreik M, Jebb SA. A Behaviorally Informed Mobile App to Improve the Nutritional Quality of Grocery Shopping (SwapSHOP): Feasibility Randomized Controlled Trial. JMIR Mhealth Uhealth 2024; 12:e45854. [PMID: 38206671 PMCID: PMC10811579 DOI: 10.2196/45854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 04/29/2023] [Accepted: 11/27/2023] [Indexed: 01/12/2024] Open
Abstract
BACKGROUND Interventions targeting the nutritional quality of grocery shopping have the potential to help improve diet and health outcomes. OBJECTIVE This study aims to assess the feasibility and acceptability of receiving advice on healthier food purchases through SwapSHOP, a behaviorally informed smartphone app that allows users to scan barcodes of grocery products from the United Kingdom, providing nutritional information and personalized swap suggestions to encourage healthier purchases. METHODS We randomized adult volunteers in a 6-arm parallel-group controlled feasibility trial. Participants used the SwapSHOP app to record their grocery shopping during a 2-week run-in period and were individually randomized in a 3:1 ratio to either intervention or control arms within 3 strata related to a nutrient of concern of their choice: saturated fat (SFA), sugar, or salt. Participants randomized to the intervention received the SwapSHOP app with a healthier swap function, goal setting, and personalized feedback. Participants in the control group were instructed to use a simpler version of the app to log all their food purchases without receiving any guidance or advice. The primary outcome was the feasibility of progression to a full trial, including app use and follow-up rates at 6 weeks. The secondary outcomes included other feasibility outcomes, process and qualitative measures, and exploratory effectiveness outcomes to assess changes in the nutrient content of the purchased foods. RESULTS A total of 112 participants were randomized into 3 groups: SFA (n=38 intervention and n=13 control), sugar (n=40 intervention and n=15 control), and salt (n=5 intervention and n=1 control, not analyzed). The 2 progression criteria were met for SFA and sugar: 81% (30/37) and 87% (34/39) of intervention participants in the SFA and sugar groups, respectively, used the app to obtain healthier swaps, and 89% (68/76) of intervention participants and 96% (23/24) of control participants completed follow-up by scanning all purchases over the follow-up period. The process and qualitative outcomes suggested that the intervention was acceptable and has the potential to influence shopping behaviors. There were reductions of -0.56 g per 100 g (95% CI -1.02 to -0.19) in SFA and -1 g per 100 g (95% CI -1.97 to -0.03) in total sugars across all food purchases in the intervention groups. CONCLUSIONS People were willing to use the SwapSHOP app to help reduce sugar and SFA (but not salt) in their grocery shopping. Adherence and follow-up rates suggest that a full trial is feasible. Given the suggestive evidence indicating that the intervention resulted in reductions in sugars and SFA, a definitive trial is necessary to target improvements in health outcomes. TRIAL REGISTRATION International Standard Randomised Controlled Trial Number ISRCTN13022312; https://doi.org/10.1186/ISRCTN13022312.
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Affiliation(s)
- Carmen Piernas
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, United Kingdom
- Department of Biochemistry and Molecular Biology II, Center for Biomedical Research (CIBM), Institute of Nutrition and Food Technology (INYTA), University of Granada, Granada, Spain
| | - Charlotte Lee
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, United Kingdom
| | - Alice Hobson
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, United Kingdom
| | - Georgina Harmer
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, United Kingdom
| | - Sarah Payne Riches
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, United Kingdom
| | - Michaela Noreik
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, United Kingdom
- Faculty of Food and Nutrition Sciences, Hochschule Niederrhein, Mönchengladbach, Germany
| | - Susan A Jebb
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, United Kingdom
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Zorbas C, Blake MR, Brown AD, Peeters A, Allender S, Brimblecombe J, Cameron AJ, Whelan J, Ferguson M, Alston L, Boelsen-Robinson T. A systems framework for implementing healthy food retail in grocery settings. BMC Public Health 2024; 24:137. [PMID: 38195419 PMCID: PMC10777568 DOI: 10.1186/s12889-023-17075-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 10/26/2023] [Indexed: 01/11/2024] Open
Abstract
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.
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Affiliation(s)
- Christina Zorbas
- Global Centre for Preventive Health and Nutrition, Institute for Health Transformation, Deakin University, 1 Gheringhap Street, Geelong, VIC, Australia.
| | - Miranda R Blake
- Global Centre for Preventive Health and Nutrition, Institute for Health Transformation, Deakin University, 1 Gheringhap Street, Geelong, VIC, Australia
| | - Andrew D Brown
- Global Centre for Preventive Health and Nutrition, Institute for Health Transformation, Deakin University, 1 Gheringhap Street, Geelong, VIC, Australia
| | - Anna Peeters
- Global Centre for Preventive Health and Nutrition, Institute for Health Transformation, Deakin University, 1 Gheringhap Street, Geelong, VIC, Australia
| | - Steve Allender
- Global Centre for Preventive Health and Nutrition, Institute for Health Transformation, Deakin University, 1 Gheringhap Street, Geelong, VIC, Australia
| | - Julie Brimblecombe
- Department of Nutrition and Dietetics, Monash University, 264 Ferntree Gully Rd, Notting Hill, VIC, Australia
| | - Adrian J Cameron
- Global Centre for Preventive Health and Nutrition, Institute for Health Transformation, Deakin University, 1 Gheringhap Street, Geelong, VIC, Australia
| | - Jill Whelan
- Global Centre for Preventive Health and Nutrition, Institute for Health Transformation, Deakin University, 1 Gheringhap Street, Geelong, VIC, Australia
| | - Megan Ferguson
- School of Public Health, The University of Queensland, St Lucia, QLD, Australia
| | - Laura Alston
- Global Centre for Preventive Health and Nutrition, Institute for Health Transformation, Deakin University, 1 Gheringhap Street, Geelong, VIC, Australia
- Deakin Rural Health, Faculty of Health, Deakin University, 1 Gheringhap Street, Geelong, VIC, Australia
| | - Tara Boelsen-Robinson
- Global Centre for Preventive Health and Nutrition, Institute for Health Transformation, Deakin University, 1 Gheringhap Street, Geelong, VIC, Australia
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Petimar J, Moran AJ, Grummon AH, Anderson E, Lurie P, John S, Rimm EB, Thorndike AN. In-Store Marketing and Supermarket Purchases: Associations Overall and by Transaction SNAP Status. Am J Prev Med 2023; 65:587-595. [PMID: 36878416 PMCID: PMC10475490 DOI: 10.1016/j.amepre.2023.02.029] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 02/24/2023] [Accepted: 02/26/2023] [Indexed: 03/07/2023]
Abstract
INTRODUCTION In-store placement promotions are used widely in supermarkets, but their effects on customer purchases remain largely unknown. This study examined associations of supermarket placement promotions with customer purchases overall and by Supplemental Nutrition Assistance Program (SNAP) benefit use. METHODS Data on in-store promotions (e.g., endcaps, checkout displays) and transactions (n=274,118,338) were obtained from a New England supermarket chain with 179 stores from 2016 to 2017. Product-level analyses examined multivariable-adjusted changes in products' sales when they were promoted (versus not) across all transactions and stratified by whether the transaction was paid for with SNAP benefits. Food group-level analyses examined the extent to which a 20% increase from the mean number of weekly promotions for a food group (e.g., increasing the number of candy promotions from 17.0 to 20.4) was associated with total food group sales. Analyses were conducted in 2022. RESULTS Across stores, the mean (SD) number of promotions per week was highest for sweet/salty snacks (126.3 [22.6]), baked goods (67.5 [18.4]), and sugar-sweetened beverages (48.6 [13.8]) and lowest for beans (5.0 [2.6]) and fruits (6.6 [3.3]). Product sales were between 16% (low-calorie drinks) and 136% (candy) higher when promoted versus not promoted. In 14 of 15 food groups, associations were stronger among transactions made with SNAP benefits than among those not made with SNAP benefits. The number of in-store promotions was generally not associated with total food group sales. CONCLUSIONS In-store promotions, which were mostly for unhealthy foods, were associated with large product sales increases, particularly among SNAP purchasers. Policies limiting unhealthy in-store promotions and incentivizing healthy promotions should be explored.
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Affiliation(s)
- Joshua Petimar
- Department of Population Medicine, Harvard Medical School & Harvard Pilgrim Health Care Institute, Boston, Massachusetts; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts.
| | - Alyssa J Moran
- Department of Health Policy and Management, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland
| | - Anna H Grummon
- Department of Population Medicine, Harvard Medical School & Harvard Pilgrim Health Care Institute, Boston, Massachusetts; Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Emma Anderson
- Department of Population Health Management, Cambridge Health Alliance, Cambridge, Massachusetts
| | - Peter Lurie
- Center for Science in the Public Interest, Washington, District of Columbia
| | - Sara John
- Center for Science in the Public Interest, Washington, District of Columbia
| | - Eric B Rimm
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts; Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Anne N Thorndike
- Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
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Dhuria P, Muir S, Lawrence W, Roe E, Crozier S, Cooper C, Baird J, Vogel C. Women Consumers' Views on Legislation to Restrict Prominent Placement and Multibuy Promotions of High Fat, Sugar, and Salt Products in England: A Qualitative Perspective. Int J Health Policy Manag 2023; 12:7597. [PMID: 38618804 PMCID: PMC10590244 DOI: 10.34172/ijhpm.2023.7597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 08/15/2023] [Indexed: 04/16/2024] Open
Abstract
BACKGROUND As part of the childhood obesity strategy, the UK Government has introduced regulations to restrict the ways high fat salt and sugar (HFSS) products can be promoted in retail settings from October 2022. This study explored (i) consumers' views on the likely impact of the UK legislation restricting the placement and promotion of HFSS products on their shopping behaviours and (ii) consumers' beliefs about who is responsible for healthy eating. METHODS Using a cross-sectional study design, qualitative semi-structured telephone interviews were conducted with a purposive sample of women who shopped at a discount supermarket. Thematic analysis was employed to identify key themes. RESULTS Participants' (n = 34) had a median age of 35 years and over half were in paid employment. Five themes were identified: (1) The legislation is acceptable, but people can still (and should be able to) buy HFSS items; (2) The legislation is likely to have more impact on shoppers who do not plan their shopping; (3) Affordability of healthy food is just as, or more, important than the legislation; (4) It's up to the individual to eat healthily; and (5) Government and retailers can better support consumers to make healthy choices. CONCLUSION Most participants were optimistic about the incoming regulations and believed that it would support consumers to make healthier food choices. Many raised concerns, however, that the high price of healthy foods and continued availability of unhealthy foods within the stores could undermine the legislation's benefits. Coupling the legislation with interventions to promote and reduce the costs of healthier products would go some way to ensure its success. Raising awareness about marketing strategies that play into consumer concerns for cost and autonomy could further increase acceptance of the policy.
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Affiliation(s)
- Preeti Dhuria
- Medical Research Council Lifecourse Epidemiology Centre, University of Southampton, Southampton General Hospital, Southampton, UK
| | - Sarah Muir
- Medical Research Council Lifecourse Epidemiology Centre, University of Southampton, Southampton General Hospital, Southampton, UK
| | - Wendy Lawrence
- Medical Research Council Lifecourse Epidemiology Centre, University of Southampton, Southampton General Hospital, Southampton, UK
- National Institute for Health Research Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Emma Roe
- School of Geography and Environmental Science, University of Southampton, Southampton, UK
| | - Sarah Crozier
- Medical Research Council Lifecourse Epidemiology Centre, University of Southampton, Southampton General Hospital, Southampton, UK
- NIHR Applied Research Collaboration Wessex, Southampton Science Park, Innovation Centre, Southampton, UK
| | - Cyrus Cooper
- Medical Research Council Lifecourse Epidemiology Centre, University of Southampton, Southampton General Hospital, Southampton, UK
- National Institute for Health Research Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Janis Baird
- Medical Research Council Lifecourse Epidemiology Centre, University of Southampton, Southampton General Hospital, Southampton, UK
- National Institute for Health Research Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton, UK
- NIHR Applied Research Collaboration Wessex, Southampton Science Park, Innovation Centre, Southampton, UK
| | - Christina Vogel
- Medical Research Council Lifecourse Epidemiology Centre, University of Southampton, Southampton General Hospital, Southampton, UK
- National Institute for Health Research Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton, UK
- NIHR Applied Research Collaboration Wessex, Southampton Science Park, Innovation Centre, Southampton, UK
- Centre for Food Policy, City, University of London, London, UK
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11
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Kuosmanen S, Niva M, Pajari AM, Korhonen K, Muilu T, Konttinen H. Barriers associated with pulse and plant-based meat alternative consumption across sociodemographic groups: a Capability, Opportunity, Motivation, Behaviour model approach. Front Nutr 2023; 10:1186165. [PMID: 37706213 PMCID: PMC10495578 DOI: 10.3389/fnut.2023.1186165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 08/14/2023] [Indexed: 09/15/2023] Open
Abstract
Introduction To enhance environmental sustainability and food security, there should be a change in dietary protein consumption. It is suggested that meat consumption should be reduced and that the currently low consumption of pulses and other plant-based proteins should increase. We aimed to examine (1) how sociodemographic factors and perceived barriers are associated with self-reported current and perceived future pulse and other plant-based meat alternative (PBMA) consumption and (2) how sociodemographic factors relate to perceived barriers. Methods Participants were 18-75 year-old Finnish adults (n = 1,000). Multivariable logistic regression was used as the main analysis technique. The results were interpreted by employing the Capability, Opportunity, Motivation, Behaviour (COM-B) model. Results Pulses were consumed more often than PBMAs and lower education level and financial strain were associated with more infrequent pulse and PBMA use. The most common perceived barriers for pulse consumption were unfamiliarity, expensive price, and unpleasant taste, which can be interpreted to represent the capability, opportunity and motivation components of the COM-B model, respectively. Women, the young, and financially strained perceived more barriers limiting their pulse consumption than others. Discussion To increase plant-based food consumption, it is important that tasty, easy to use and affordable plant-based foods are available for all. Additionally, we suggest that food services should be encouraged to increase the use of pulses in their dishes and that capabilities, opportunities and motivations are taken into account in intervention measures advancing plant protein consumption.
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Affiliation(s)
- Sini Kuosmanen
- Department of Food and Nutrition, University of Helsinki, Helsinki, Finland
- Department of Economics and Management, University of Helsinki, Helsinki, Finland
| | - Mari Niva
- Department of Economics and Management, University of Helsinki, Helsinki, Finland
| | - Anne-Maria Pajari
- Department of Food and Nutrition, University of Helsinki, Helsinki, Finland
| | | | - Toivo Muilu
- Natural Resources Institute Finland, Oulu, Finland
| | - Hanna Konttinen
- Department of Food and Nutrition, University of Helsinki, Helsinki, Finland
- Social Psychology, Faculty of Social Sciences, University of Helsinki, Helsinki, Finland
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12
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Shaw S, Barrett M, Shand C, Cooper C, Crozier S, Smith D, Barker M, Vogel C. Influences of the community and consumer nutrition environment on the food purchases and dietary behaviors of adolescents: A systematic review. Obes Rev 2023; 24:e13569. [PMID: 37081719 PMCID: PMC10909420 DOI: 10.1111/obr.13569] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Revised: 02/16/2023] [Accepted: 03/27/2023] [Indexed: 04/22/2023]
Abstract
Adolescence is a period of increased autonomy over decision-making, including food choices, and increased exposure to influences outside the home, including the food environment. This review aims to synthesize the evidence for the influence of community nutrition environments, spatial access to food outlets, and consumer nutrition environments, environments inside food outlets, on adolescent food purchasing and dietary behaviors in high-income countries. Six databases were searched for articles published before January 2023. Results were synthesized using a vote-counting technique and effect direction plots that record the direction of the effect in relation to the anticipated relationship with health. Thirty-four observational and two intervention studies met the inclusion criteria. In the 13 studies assessing adolescent exposure to healthy community nutrition environments, results did not show clear associations with dietary and purchasing outcomes. Thirty studies assessed adolescents' exposure to unhealthy community nutrition environments with the majority (n = 17/30, 57%) reporting results showing that greater exposure to food outlets classified as unhealthy was associated with less healthy food purchases and dietary intakes. Inconsistent results were observed across the seven studies investigating associations with the consumer environment. Further research in these areas, including more high-quality intervention studies, may help to develop policy strategies to improve adolescents' dietary behaviors.
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Affiliation(s)
- Sarah Shaw
- MRC Lifecourse Epidemiology CentreUniversity of SouthamptonSouthamptonSO16 6YDUK
- NIHR Southampton Biomedical Research CentreUniversity of Southampton and University Hospital Southampton NHS Foundation TrustSO16 6YDUK
| | - Millie Barrett
- MRC Lifecourse Epidemiology CentreUniversity of SouthamptonSouthamptonSO16 6YDUK
- NIHR Southampton Biomedical Research CentreUniversity of Southampton and University Hospital Southampton NHS Foundation TrustSO16 6YDUK
- Centre for Food Policy, CityUniversity of LondonNorthampton SquareLondonEC1V0HBUK
| | - Calum Shand
- MRC Lifecourse Epidemiology CentreUniversity of SouthamptonSouthamptonSO16 6YDUK
| | - Cyrus Cooper
- MRC Lifecourse Epidemiology CentreUniversity of SouthamptonSouthamptonSO16 6YDUK
- NIHR Southampton Biomedical Research CentreUniversity of Southampton and University Hospital Southampton NHS Foundation TrustSO16 6YDUK
| | - Sarah Crozier
- MRC Lifecourse Epidemiology CentreUniversity of SouthamptonSouthamptonSO16 6YDUK
- NIHR Southampton Biomedical Research CentreUniversity of Southampton and University Hospital Southampton NHS Foundation TrustSO16 6YDUK
- NIHR Applied Research Collaboration Wessex, Southampton Science Park, Innovation Centre2 Venture Road, ChilworthSouthamptonSO16 7NPUK
| | - Dianna Smith
- NIHR Applied Research Collaboration Wessex, Southampton Science Park, Innovation Centre2 Venture Road, ChilworthSouthamptonSO16 7NPUK
- Geography and Environmental ScienceUniversity of SouthamptonSouthamptonSO17 1BJUK
| | - Mary Barker
- MRC Lifecourse Epidemiology CentreUniversity of SouthamptonSouthamptonSO16 6YDUK
- NIHR Southampton Biomedical Research CentreUniversity of Southampton and University Hospital Southampton NHS Foundation TrustSO16 6YDUK
- School of Health SciencesFaculty of Environmental and Life SciencesUniversity of SouthamptonSouthamptonSO17 1BJUK
| | - Christina Vogel
- MRC Lifecourse Epidemiology CentreUniversity of SouthamptonSouthamptonSO16 6YDUK
- NIHR Southampton Biomedical Research CentreUniversity of Southampton and University Hospital Southampton NHS Foundation TrustSO16 6YDUK
- Centre for Food Policy, CityUniversity of LondonNorthampton SquareLondonEC1V0HBUK
- NIHR Applied Research Collaboration Wessex, Southampton Science Park, Innovation Centre2 Venture Road, ChilworthSouthamptonSO16 7NPUK
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13
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Luick M, Pechey R, Harmer G, Bandy L, Jebb SA, Piernas C. The impact of price promotions on confectionery and snacks on the energy content of shopping baskets: A randomised controlled trial in an experimental online supermarket. Appetite 2023; 186:106539. [PMID: 36931348 PMCID: PMC10933760 DOI: 10.1016/j.appet.2023.106539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 02/24/2023] [Accepted: 03/14/2023] [Indexed: 03/17/2023]
Abstract
Overconsumption of foods high in fat, sugars, and salt (HFSS) poses a significant risk to health. The government in England has passed legislation that would limit some price promotions of HFSS foods within supermarkets, but evidence regarding likely impacts of these policies, especially in online settings, is limited. This study aimed to determine whether there were any differences in the energy and nutrient content of shopping baskets after removing promotions on HFSS foods in an online experimental supermarket. UK adults (n = 511) were asked to select food from four categories with a £10 budget in an online experimental supermarket: confectionery; biscuits and crackers; crisps, nuts and snacking fruit; cakes and tarts. They were randomly allocated to one of two trial arms: (1) promotions present (matched to promotion frequency seen in a major UK retailer) (n = 257), or (2) all promotions removed from all products within the target food categories (n = 254). The primary outcome analysis used linear regression to compare total energy (kcal) of items placed in shopping baskets when promotions were present vs. absent, while secondary analyses investigated differences in nutrients and energy purchased from individual food categories. Mean energy in food selected without promotions was 5156 kcal per basket (SD 1620), compared to 5536 kcal (SD 1819) with promotions, a difference of -552kcal (95%CIs: -866, -238), equivalent to 10%. There were no significant differences in energy purchased for any individual category between groups. No evidence was found of other changes in nutritional composition of baskets or of significant interactions between the impact of promotions and participant characteristics (gender, age, ethnicity) on energy purchased. Removing promotions on HFSS foods resulted in significantly less total energy selected in an online experimental supermarket study.
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Affiliation(s)
- Madison Luick
- Nuffield Department of Primary Care Health Sciences, Radcliffe Observatory Quarter, University of Oxford, Oxford, OX2 6GG, UK
| | - Rachel Pechey
- Nuffield Department of Primary Care Health Sciences, Radcliffe Observatory Quarter, University of Oxford, Oxford, OX2 6GG, UK.
| | - Georgina Harmer
- Nuffield Department of Primary Care Health Sciences, Radcliffe Observatory Quarter, University of Oxford, Oxford, OX2 6GG, UK
| | - Lauren Bandy
- Nuffield Department of Primary Care Health Sciences, Radcliffe Observatory Quarter, University of Oxford, Oxford, OX2 6GG, UK
| | - Susan A Jebb
- Nuffield Department of Primary Care Health Sciences, Radcliffe Observatory Quarter, University of Oxford, Oxford, OX2 6GG, UK
| | - Carmen Piernas
- Nuffield Department of Primary Care Health Sciences, Radcliffe Observatory Quarter, University of Oxford, Oxford, OX2 6GG, UK; Department of Biochemistry and Molecular Biology II, Institute of Nutrition and Food Technology, Center for Biomedical Research (CIBM), University of Granada, Spain
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14
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Vogel C, Dijkstra C, Huitink M, Dhuria P, Poelman MP, Mackenbach JD, Crozier S, Seidell J, Baird J, Ball K. Real-life experiments in supermarkets to encourage healthy dietary-related behaviours: opportunities, challenges and lessons learned. Int J Behav Nutr Phys Act 2023; 20:73. [PMID: 37340326 DOI: 10.1186/s12966-023-01448-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 04/04/2023] [Indexed: 06/22/2023] Open
Abstract
BACKGROUND Supermarkets are the primary source of food for many people yet their full potential as a setting to encourage healthy dietary-related behaviours remains underutilised. Sharing the experiences from research groups who have worked with supermarket chains to evaluate strategies that promote healthy eating could improve the efficiency of building such relationships and enhance the design quality of future research studies. METHODS A collective case study approach was used to synthesise experiences of engaging and sustaining research collaborations with national supermarket chains to test the effectiveness of health-focused in-store interventions. The collective narrative covers studies conducted in three high-income countries: Australia, the Netherlands and the United Kingdom. RESULTS We have distilled our experiences and lessons learned into six recommendations for conducting high quality public health research with commercial supermarket chains. These include: (i) using personal contacts, knowledge of supermarket activities and engaging executive management to establish a partnership and allowing time to build trust; (ii) using scientifically robust study designs with appropriate sample size calculations; (iii) formalising data exchange arrangements and allocating adequate resource for data extraction and re-categorisation; (iv) assessing effects at individual/households level where possible; (v) designing a mixed-methods process evaluation to measure intervention fidelity, dose and unintended consequences; and (vi) ensuring scientific independence through formal contract agreements. CONCLUSIONS Our collective experiences of working in non-financial partnerships with national supermarket chains could be useful for other research groups looking to develop and implement supermarket studies in an efficient manner. Further evidence from real-life supermarket interventions is necessary to identify sustainable strategies that can improve population diet and maintain necessary commercial outcomes.
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Affiliation(s)
- Christina Vogel
- Centre for Food Policy, City, University of London, Northampton Square, London, EC1V 0HB, UK.
- Medical Research Council Lifecourse Epidemiology Centre, University of Southampton, Southampton General Hospital Tremona Road, Southampton, SO16 6YD, UK.
- National Institute for Health Research Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton, SO16 6YD, UK.
| | - Coosje Dijkstra
- Department of Health Sciences, Faculty of Science, Vrije Universiteit Amsterdam, Amsterdam Public Health research institute, De Boelelaan 1085, Amsterdam, 1081 HV, the Netherlands.
| | - Marlijn Huitink
- Department of Health Sciences, Faculty of Science, Vrije Universiteit Amsterdam, Amsterdam Public Health research institute, De Boelelaan 1085, Amsterdam, 1081 HV, the Netherlands
| | - Preeti Dhuria
- Medical Research Council Lifecourse Epidemiology Centre, University of Southampton, Southampton General Hospital Tremona Road, Southampton, SO16 6YD, UK
| | - Maartje P Poelman
- Chair group Consumption and Healthy Lifestyles, Wageningen University & Research, P.O. Box 8130, Wageningen, 6700 EW, The Netherlands
| | - Joreintje D Mackenbach
- Department of Epidemiology and Data Science, Amsterdam UMC, location VUmc, Amsterdam Public Health research institute, De Boelelaan 1089a, 1081HV, Amsterdam, the Netherlands
| | - Sarah Crozier
- Medical Research Council Lifecourse Epidemiology Centre, University of Southampton, Southampton General Hospital Tremona Road, Southampton, SO16 6YD, UK
| | - Jacob Seidell
- Department of Health Sciences, Faculty of Science, Vrije Universiteit Amsterdam, Amsterdam Public Health research institute, De Boelelaan 1085, Amsterdam, 1081 HV, the Netherlands
| | - Janis Baird
- Medical Research Council Lifecourse Epidemiology Centre, University of Southampton, Southampton General Hospital Tremona Road, Southampton, SO16 6YD, UK
- National Institute for Health Research Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton, SO16 6YD, UK
| | - Kylie Ball
- Institute for Physical Activity and Nutrition Research, School of Exercise and Nutrition Sciences, Deakin University, 1 Gheringhap Street, Geelong, VIC, 3220, Australia
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15
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Thapa K, Rajbhandari-Thapa J, Hanks A, Lee JS, Zhen C. Sugar sweetened beverage restriction or fruit and vegetable purchase incentive in Supplemental Nutrition Assistance Program (SNAP): Participant’s voice and choice behavior. JOURNAL OF HUNGER & ENVIRONMENTAL NUTRITION 2023. [DOI: 10.1080/19320248.2023.2179448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Affiliation(s)
- Kiran Thapa
- Department of Health Policy and Management, University of Georgia, Athens, GA, USA
| | | | - Andrew Hanks
- Department of Human Sciences, Ohio State University, Columbus, GA, USA
| | - Jung Sun Lee
- Department of Family and Consumer Sciences, University of Georgia, Athens, GA, USA
| | - Chen Zhen
- Department of Agriculture and Applied Economics, University of Georgia, Athens, GA, USA
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16
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Brooker PG, Hendrie GA, Anastasiou K, Woodhouse R, Pham T, Colgrave ML. Marketing strategies used for alternative protein products sold in Australian supermarkets in 2014, 2017, and 2021. Front Nutr 2022; 9:1087194. [PMID: 36618675 PMCID: PMC9815776 DOI: 10.3389/fnut.2022.1087194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 12/06/2022] [Indexed: 12/24/2022] Open
Abstract
Introduction Marketing plays an important role in consumers' perceptions and acceptance of new foods. The purpose of this study was to investigate the marketing strategies used for alternative protein products available in Australia in 2014, 2017, and 2021. Methods Product data were extracted from FoodTrack™, an established database of packaged supermarket products. Marketing strategies investigated included product format descriptors, front of pack (FOP) labeling claims, price, and in-store placement (2021 only). Results Data from 292 alternative protein products (n = 12 tofu-based products; n = 100 legume-based products; and n = 180 plant-based meats) were analyzed. Across the product range, "burgers" (n = 86), "strips and similar" (n = 51) and "sausages" (n = 42) were the most common product formats, accounting for ∼61% of the product range. Nutrient content claims featured on 273 (93%) products. "Positive" nutrient claims (those highlighting the presence of a nutrient) occurred on FOP labels four times more than "negative" nutrient claims (those highlighting the absence or low levels of a nutrient; 432 versus 101, respectively). Protein-related claims were the most common "positive" nutrient claim (n = 180, 62%). Health claims on FOP labels appeared on 10% of products. Most products (n = 265, 91%) mentioned a dietary pattern (such as "vegetarian" and "plant-based"), or a combination of dietary patterns on their FOP label. The price of alternative products increased over time; between 2014 and 2021, on average, the unit price increased (9% increase, p = 0.035) and the pack size decreased (14% decrease, p < 0.001). There was inconsistency in product placement across the eight stores visited. Occasionally (n = 3 of 13 locations), chilled alternative protein products were positioned near conventional meat products. More commonly, alternative protein products shared space with other vegetarian products (such as non-dairy cheeses and tofu blocks) or alongside convenience products, suggesting these products are promoted as convenience foods, or options for individuals with special dietary needs. Discussion This study provides a useful evidence base to understand the marketing strategies used for alternative protein products. It appears from this analysis that considerable effort has gone into providing consumers with a level of familiarity and comfort prior to purchasing these alternative protein products.
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Affiliation(s)
- Paige G. Brooker
- Health and Biosecurity, Commonwealth Scientific and Industrial Research Organisation (CSIRO), Adelaide, SA, Australia
| | - Gilly A. Hendrie
- Health and Biosecurity, Commonwealth Scientific and Industrial Research Organisation (CSIRO), Adelaide, SA, Australia
| | - Kim Anastasiou
- Health and Biosecurity, Commonwealth Scientific and Industrial Research Organisation (CSIRO), Adelaide, SA, Australia
| | - Rachel Woodhouse
- Health and Biosecurity, Commonwealth Scientific and Industrial Research Organisation (CSIRO), Adelaide, SA, Australia
- Department of Nutrition and Dietetics, Flinders University, Bedford Park, SA, Australia
| | - Theresa Pham
- Health Research and Innovation, The National Heart Foundation of Australia, Docklands, VIC, Australia
- Grains & Legumes Nutrition Council, North Sydney, NSW, Australia
| | - Michelle L. Colgrave
- Agriculture and Food, Commonwealth Scientific and Industrial Research Organisation (CSIRO), Saint Lucia, QLD, Australia
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17
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Larsen NM, Sigurdsson V, Gunnarsson D. Environmental cues for healthy food marketing: The importance of in-store research into three conversions. Front Nutr 2022; 9:1078672. [PMID: 36618685 PMCID: PMC9811177 DOI: 10.3389/fnut.2022.1078672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Accepted: 12/02/2022] [Indexed: 12/24/2022] Open
Abstract
Since retailers control the space where consumers tend to make the vast majority of their food purchase decisions, they can take measures to promote healthy living. Increasing relative sales of healthy food can contribute to the ongoing battle against preventable lifestyle diseases. We show how retailers can use impression management and environmental cues in their stores to influence consumers' sales responses to healthy food. This paper advocates in-store research in this realm and introduces three consumer behavior levels - reaching, stopping/holding, and closing the sale - as micro-conversions when retailers use impression management on their consumers. We showcase impression management at each conversion level by testing the effects of placing healthy and unhealthy food items on a floor display in the store area with the most traffic, with or without background music and an advertisement. The results demonstrate that a healthy food product can outperform the sales of popular unhealthy foods. The floor display, for example, increased the sales of the targeted "healthy product" by 570% on average during the intervention periods, compared with the baseline. We discuss the importance of in-store research into three conversions to enable further development of impression management and the use of environmental cues for healthy food promotion.
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Affiliation(s)
- Nils Magne Larsen
- Department of Business and Economics, UiT The Arctic University of Norway, Harstad, Norway
| | - Valdimar Sigurdsson
- Department of Business Administration, Reyjavik University, Reykjavik, Iceland
| | - Didrik Gunnarsson
- Department of Business Administration, Reyjavik University, Reykjavik, Iceland
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18
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Muir S, Dhuria P, Vogel C. Government must proceed with landmark anti-obesity regulations in England. BMJ 2022; 378:o2358. [PMID: 36180089 DOI: 10.1136/bmj.o2358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- Sarah Muir
- MRC Lifecourse Epidemiology Unit, University of Southampton, UK
| | - Preeti Dhuria
- MRC Lifecourse Epidemiology Unit, University of Southampton, UK
| | - Christina Vogel
- MRC Lifecourse Epidemiology Unit, University of Southampton, UK
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19
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Piernas C, Harmer G, Jebb SA. Removing seasonal confectionery from prominent store locations and purchasing behaviour within a major UK supermarket: Evaluation of a nonrandomised controlled intervention study. PLoS Med 2022; 19:e1003951. [PMID: 35324903 PMCID: PMC8946674 DOI: 10.1371/journal.pmed.1003951] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 02/23/2022] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND The proportion of energy from free sugars and saturated fat currently exceeds the UK-recommended intake across all age groups. Recognising the limits of reformulation programmes, the government in England has announced their intention to introduce legislation to restrict the promotion of foods high in free sugars, salt, and saturated fats in prominent store locations. Here, we evaluated a grocery store intervention to remove seasonal confectionery from prominent locations within a major UK supermarket. METHODS AND FINDINGS A nonrandomised controlled intervention study with interrupted time series (ITS) analysis was used. Data were analysed from 34 intervention stores located in 2 London boroughs and 151 matched control stores located elsewhere in the UK owned by the same retailer. Stores were matched based on store size and overall sales during the previous year. Between 15 February 2019 and 3 April 2019 (before Easter), stores removed free-standing promotional display units of seasonal confectionery from prominent areas, although these products were available for purchase elsewhere in the store. Store-level weekly sales (units, weight (g), and value (£)) of seasonal chocolate confectionery products were used in primary analyses, with data from 1 January 2018 to 24 November 2019. Secondary outcomes included total energy, fat, saturated fat, and sugars from all in-store purchases. Multivariable hierarchical models were used to investigate pre/post differences in weekly sales of confectionery in intervention versus control stores. ITS analyses were used to evaluate differences in level and trends after intervention implementation. Over a preintervention baseline period (15 February 2018 to 3 April 2018), there were no significant differences in sales (units, weight, and value) of all chocolate confectionery between intervention versus control stores. After intervention implementation, there was an attenuation in the seasonal increase of confectionery sales (units) in intervention stores compared to control (+5% versus +18%; P < 0.001), with similar effects on weight (g) (+12% versus +31%; P < 0.001) and value (£) (-3% versus +10%; P < 0.001). ITS analyses generally showed statistically significant differences in the level at the point of intervention (P ranges 0.010 to 0.067) but also in the trend afterwards (P ranges 0.024 to 0.053), indicating that the initial difference between intervention and control stores reduced over time. There was a significant difference in level change in total energy sold, adjusted for the total weight of food and drink (kcal/g, P = 0.002), and total fat (fat/g) (P = 0.023), but no significant changes in saturated fat or sugars from total sales in ITS models. There was no evidence that the main results varied across store deprivation index. The limitations of this study include the lack of randomisation, residual confounding from unmeasured variables, absolute differences in trends and sales between intervention versus control stores, and no independent measures of intervention fidelity. CONCLUSIONS Removal of chocolate confectionery from prominent locations was associated with reduced purchases of these products, of sufficient magnitude to observe a reduction in the energy content of total food purchases. These results from a "real-world" intervention provide promising evidence that the proposed legislation in England to restrict promotions of less healthy items in prominent locations may help reduce overconsumption. TRIAL REGISTRATION https://osf.io/br96f/.
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Affiliation(s)
- Carmen Piernas
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, United Kingdom
- * E-mail:
| | - Georgina Harmer
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, United Kingdom
| | - Susan A. Jebb
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, United Kingdom
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20
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Piernas C, Harmer G, Jebb SA. Testing availability, positioning, promotions, and signage of healthier food options and purchasing behaviour within major UK supermarkets: Evaluation of 6 nonrandomised controlled intervention studies. PLoS Med 2022; 19:e1003952. [PMID: 35324919 PMCID: PMC8946731 DOI: 10.1371/journal.pmed.1003952] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 02/23/2022] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND Governments are increasingly looking for policies to change supermarket environments to support healthier food purchasing. We evaluated 6 interventions within major United Kingdom grocery stores, including availability, positioning, promotions, and signage strategies to encourage selection of healthier products. METHODS AND FINDINGS Nonrandomised controlled study designs were used, except for one intervention that was rolled out nationwide using a pre/post within-store design. Store-level weekly sales (units, weight (g), and value (£)) of products targeted in the interventions were used in primary analyses using multivariable hierarchical models and interrupted time series (ITS) analyses. Stocking low fat chips next to regular chips was associated with decreases in sales of regular chips (units) in intervention versus control stores (-23% versus -4%; P = 0.001) with a significant level change in ITS models (P = 0.001). Increasing availability of lower energy packs of biscuits was associated with increased sales but reduced sales of regular biscuits in intervention versus control stores (lower energy biscuits +18% versus -2%; P = 0.245; regular biscuits -4% versus +7%; P = 0.386), although not significantly, though there was a significant level change in ITS models (P = 0.004 for regular biscuits). There was no evidence that a positioning intervention, placing higher fibre breakfast cereals at eye level was associated with increased sales of healthier cereal or reduced sales of regular cereal. A price promotion on seasonal fruits and vegetables showed no evidence of any greater increases in sales of items on promotion in intervention versus control stores (+10% versus +8%; P = 0.101) but a significant level change in ITS models (P < 0.001). A nationwide promotion using Disney characters was associated with increased sales of nonsugar baked beans (+54%) and selected fruits (+305%), with a significant level change in ITS models (P < 0.001 for both). Shelf labels to highlight lower sugar beverages showed no evidence of changes in purchasing of lower or higher sugar drinks. These were all retailer-led interventions that present limitations regarding the lack of randomisation, residual confounding from unmeasured variables, absolute differences in trends and sales between intervention versus control stores, and no independent measures of intervention fidelity. CONCLUSIONS Increasing availability and promotions of healthier alternatives in grocery stores may be promising interventions to encourage purchasing of healthier products instead of less healthy ones. There was no evidence that altering positioning within an aisle or adding shelf edge labelling is associated with changes in purchasing behaviours. TRIAL REGISTRATION https://osf.io/br96f/.
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Affiliation(s)
- Carmen Piernas
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, United Kingdom
- * E-mail:
| | - Georgina Harmer
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, United Kingdom
| | - Susan A. Jebb
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, United Kingdom
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A Proposed Research Agenda for Promoting Healthy Retail Food Environments in the East Asia-Pacific Region. Curr Nutr Rep 2021; 10:267-281. [PMID: 34894342 DOI: 10.1007/s13668-021-00381-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/20/2021] [Indexed: 10/19/2022]
Abstract
PURPOSE OF REVIEW This paper aimed to summarise existing literature on strategies to improve the healthiness of retail food environments in the East Asia and Pacific (EAP) region, and propose a prioritised research agenda on this topic. RECENT FINDINGS Little research on retail food environments has been conducted in the EAP region. Several approaches for measuring retail food environments were identified, although none have been tailored to the EAP context. A small number of policies and initiatives to promote healthy retail food environments have been implemented in EAP. Lessons learnt from successful implementation of initiatives in other regions could be applied in EAP. Retail food environments have a strong influence on food choices and health outcomes. Research can contribute to efforts to improve the healthiness of retail food environments in EAP by (1) describing the current state of retail food environments to highlight areas of good practice and concern and (2) identifying policies and initiatives that are likely to be effective, and mechanisms for their successful implementation.
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Dean S, Marshall J, Whelan E, Watson J, Zorbas C, Cameron AJ. A Systematic Review of Health Promotion Programs to Improve Nutrition for People with Intellectual Disability. Curr Nutr Rep 2021; 10:255-266. [PMID: 34893970 DOI: 10.1007/s13668-021-00382-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/20/2021] [Indexed: 11/29/2022]
Abstract
PURPOSE OF REVIEW To investigate the type and effectiveness of health promotion programs designed to improve nutrition for people with intellectual disability. This review also sought to highlight gaps in the evidence by mapping interventions to the socio-ecological model. RECENT FINDINGS To date, reviews on health promotion programs for people with intellectual disability have focused on individualised weight management interventions and behaviour change techniques. No reviews have focused solely on nutrition or considered a broader range of interventions and policies targeted beyond the individual. This review found that health promotion interventions to date were predominantly at the individual level of the socio-ecological model and of varying effectiveness. Of the non-individually focused interventions, those targeting the physical environment or considering multiple socio-ecological levels achieved the greatest improvements in nutrition outcomes. Nutrition and obesity prevention research and policy need to include intellectual disability as part of equity considerations, while intellectual disability policy needs to consider the broader food environment.
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Affiliation(s)
- Sarah Dean
- Faculty of Health, School of Health and Social Development, Global Obesity Centre (GLOBE), Institute for Health Transformation, Deakin University, Geelong, 3220, Australia
| | - Josephine Marshall
- Faculty of Health, School of Health and Social Development, Global Obesity Centre (GLOBE), Institute for Health Transformation, Deakin University, Geelong, 3220, Australia
| | - Erin Whelan
- Faculty of Health, School of Health and Social Development, Global Obesity Centre (GLOBE), Institute for Health Transformation, Deakin University, Geelong, 3220, Australia
| | - Jo Watson
- Faculty of Health, School of Health and Social Development, Deakin University, Geelong, 3220, Australia
| | - Christina Zorbas
- Faculty of Health, School of Health and Social Development, Global Obesity Centre (GLOBE), Institute for Health Transformation, Deakin University, Geelong, 3220, Australia
| | - Adrian J Cameron
- Faculty of Health, School of Health and Social Development, Global Obesity Centre (GLOBE), Institute for Health Transformation, Deakin University, Geelong, 3220, Australia.
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Anderson E, Wei R, Liu B, Plummer R, Kelahan H, Tamez M, Marrero A, Bhupathiraju S, Mattei J. Improving Healthy Food Choices in Low-Income Settings in the United States Using Behavioral Economic-Based Adaptations to Choice Architecture. Front Nutr 2021; 8:734991. [PMID: 34692747 PMCID: PMC8526839 DOI: 10.3389/fnut.2021.734991] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 09/08/2021] [Indexed: 12/27/2022] Open
Abstract
Low diet quality is a significant public health problem in the United States, especially among low-income populations. The food environment influences dietary choices. When applied to eating behavior, behavioral economics (BE) recognizes that decision biases instigated by a food environment saturated with unhealthy foods may lead people to purchase such foods, even when they possess the necessary information and skills to make healthy dietary choices. Choice architecture, a BE concept that involves modifying the appeal or availability of choices to “nudge” people toward a certain choice, retains freedom of choice but makes unhealthy options less convenient or visible. Choice architecture has been demonstrated to influence food choices in various settings, including supermarkets, convenience stores, and food pantries. These modifications are low-cost and feasible to implement, making them a viable strategy to help “nudge” patrons toward healthier choices in food establishments serving low-income populations, including food pantries and retailers accepting the Supplemental Nutrition Assistance Program. This narrative review searched, appraised, and underscored the strengths and limitations of extant research studies that used choice architecture adaptations to influence food choices among low-income populations in the United States. Findings from studies in food pantry settings suggest the potential of BE strategies to improve the healthfulness of food choices and dietary intake in low-income populations. In food retail settings, research suggests that BE strategies increase sales of healthy foods, like fruits and vegetables. We identify new areas of research needed to determine if BE-based modifications in low-income settings have sustained impacts on diet quality.
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Affiliation(s)
- Emma Anderson
- Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, MA, United States
| | - Ruobin Wei
- Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, MA, United States
| | - Binkai Liu
- Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, MA, United States
| | - Rachel Plummer
- Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, MA, United States
| | - Heather Kelahan
- Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, MA, United States
| | - Martha Tamez
- Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, MA, United States
| | - Abrania Marrero
- Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, MA, United States
| | - Shilpa Bhupathiraju
- Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, MA, United States
| | - Josiemer Mattei
- Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, MA, United States
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Vogel C, Crozier S, Penn-Newman D, Ball K, Moon G, Lord J, Cooper C, Baird J. Altering product placement to create a healthier layout in supermarkets: Outcomes on store sales, customer purchasing, and diet in a prospective matched controlled cluster study. PLoS Med 2021; 18:e1003729. [PMID: 34491999 PMCID: PMC8423266 DOI: 10.1371/journal.pmed.1003729] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Accepted: 07/12/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Previous product placement trials in supermarkets are limited in scope and outcome data collected. This study assessed the effects on store-level sales, household-level purchasing, and dietary behaviours of a healthier supermarket layout. METHODS AND FINDINGS This is a prospective matched controlled cluster trial with 2 intervention components: (i) new fresh fruit and vegetable sections near store entrances (replacing smaller displays at the back) and frozen vegetables repositioned to the entrance aisle, plus (ii) the removal of confectionery from checkouts and aisle ends opposite. In this pilot study, the intervention was implemented for 6 months in 3 discount supermarkets in England. Three control stores were matched on store sales and customer profiles and neighbourhood deprivation. Women customers aged 18 to 45 years, with loyalty cards, were assigned to the intervention (n = 62) or control group (n = 88) of their primary store. The trial registration number is NCT03518151. Interrupted time series analysis showed that increases in store-level sales of fruits and vegetables were greater in intervention stores than predicted at 3 (1.71 standard deviations (SDs) (95% CI 0.45, 2.96), P = 0.01) and 6 months follow-up (2.42 SDs (0.22, 4.62), P = 0.03), equivalent to approximately 6,170 and approximately 9,820 extra portions per store, per week, respectively. The proportion of purchasing fruits and vegetables per week rose among intervention participants at 3 and 6 months compared to control participants (0.2% versus -3.0%, P = 0.22; 1.7% versus -3.5%, P = 0.05, respectively). Store sales of confectionery were lower in intervention stores than predicted at 3 (-1.05 SDs (-1.98, -0.12), P = 0.03) and 6 months (-1.37 SDs (-2.95, 0.22), P = 0.09), equivalent to approximately 1,359 and approximately 1,575 fewer portions per store, per week, respectively; no differences were observed for confectionery purchasing. Changes in dietary variables were predominantly in the expected direction for health benefit. Intervention implementation was not within control of the research team, and stores could not be randomised. It is a pilot study, and, therefore, not powered to detect an effect. CONCLUSIONS Healthier supermarket layouts can improve the nutrition profile of store sales and likely improve household purchasing and dietary quality. Placing fruits and vegetables near store entrances should be considered alongside policies to limit prominent placement of unhealthy foods. TRIAL REGISTRATION ClinicalTrials.gov NCT03518151 (pre-results).
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Affiliation(s)
- Christina Vogel
- Medical Research Council Lifecourse Epidemiology Unit, University of Southampton, Southampton General Hospital, Southampton, United Kingdom
- NIHR Southampton Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust and University of Southampton, Southampton, United Kingdom
| | - Sarah Crozier
- Medical Research Council Lifecourse Epidemiology Unit, University of Southampton, Southampton General Hospital, Southampton, United Kingdom
| | - Daniel Penn-Newman
- Medical Research Council Lifecourse Epidemiology Unit, University of Southampton, Southampton General Hospital, Southampton, United Kingdom
| | - Kylie Ball
- Institute for Physical Activity and Nutrition Research, School of Exercise and Nutrition Sciences, Deakin University, Geelong, Australia
| | - Graham Moon
- School of Geography and Environmental Science, University of Southampton, Southampton, United Kingdom
| | - Joanne Lord
- Southampton Health Technology Assessments Centre, Wessex Institute, University of Southampton, Southampton, United Kingdom
| | - Cyrus Cooper
- Medical Research Council Lifecourse Epidemiology Unit, University of Southampton, Southampton General Hospital, Southampton, United Kingdom
- NIHR Southampton Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust and University of Southampton, Southampton, United Kingdom
| | - Janis Baird
- Medical Research Council Lifecourse Epidemiology Unit, University of Southampton, Southampton General Hospital, Southampton, United Kingdom
- NIHR Southampton Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust and University of Southampton, Southampton, United Kingdom
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Piernas C, Cook B, Stevens R, Stewart C, Hollowell J, Scarborough P, Jebb SA. Estimating the effect of moving meat-free products to the meat aisle on sales of meat and meat-free products: A non-randomised controlled intervention study in a large UK supermarket chain. PLoS Med 2021; 18:e1003715. [PMID: 34264943 PMCID: PMC8321099 DOI: 10.1371/journal.pmed.1003715] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Revised: 07/29/2021] [Accepted: 06/29/2021] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Reducing meat consumption could bring health and environmental benefits, but there is little research to date on effective interventions to achieve this. A non-randomised controlled intervention study was used to evaluate whether prominent positioning of meat-free products in the meat aisle was associated with a change in weekly mean sales of meat and meat-free products. METHODS AND FINDINGS Weekly sales data were obtained from 108 stores: 20 intervention stores that moved a selection of 26 meat-free products into a newly created meat-free bay within the meat aisle and 88 matched control stores. The primary outcome analysis used a hierarchical negative binomial model to compare changes in weekly sales (units) of meat products sold in intervention versus control stores during the main intervention period (Phase I: February 2019 to April 2019). Interrupted time series analysis was also used to evaluate the effects of the Phase I intervention. Moreover, 8 of the 20 stores enhanced the intervention from August 2019 onwards (Phase II intervention) by adding a second bay of meat-free products into the meat aisle, which was evaluated following the same analytical methods. During the Phase I intervention, sales of meat products (units/store/week) decreased in intervention (approximately -6%) and control stores (-5%) without significant differences (incidence rate ratio [IRR] 1.01 [95% CI 0.95-1.07]. Sales of meat-free products increased significantly more in the intervention (+31%) compared to the control stores (+6%; IRR 1.43 [95% CI 1.30-1.57]), mostly due to increased sales of meat-free burgers, mince, and sausages. Consistent results were observed in interrupted time series analyses where the effect of the Phase II intervention was significant in intervention versus control stores. CONCLUSIONS Prominent positioning of meat-free products into the meat aisle in a supermarket was not effective in reducing sales of meat products, but successfully increased sales of meat-free alternatives in the longer term. A preregistered protocol (https://osf.io/qmz3a/) was completed and fully available before data analysis.
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Affiliation(s)
- Carmen Piernas
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, United Kingdom
| | - Brian Cook
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, United Kingdom
| | - Richard Stevens
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, United Kingdom
| | - Cristina Stewart
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, United Kingdom
| | - Jennifer Hollowell
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, United Kingdom
| | - Peter Scarborough
- Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom
| | - Susan A Jebb
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, United Kingdom
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Lee A, Patay D, Herron LM, Parnell Harrison E, Lewis M. Affordability of current, and healthy, more equitable, sustainable diets by area of socioeconomic disadvantage and remoteness in Queensland: insights into food choice. Int J Equity Health 2021; 20:153. [PMID: 34193163 PMCID: PMC8243618 DOI: 10.1186/s12939-021-01481-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 05/25/2021] [Indexed: 12/20/2022] Open
Abstract
Background Poor diet is the leading preventable risk factor contributing to the burden of disease globally and in Australia, and is inequitably distributed. As the price of healthy foods is a perceived barrier to improved diets, evidence on the cost and affordability of current (unhealthy) and recommended (healthy, more equitable and sustainable) diets is required to support policy action. Methods This study applied the Healthy Diets ASAP (Australian Standardised Affordability and Pricing) methods protocol to measure the cost, cost differential and affordability of current and recommended diets for a reference household in Queensland, Australia. Food prices were collected in 18 randomly selected locations stratified by area of socioeconomic disadvantage and remoteness. Diet affordability was calculated for three income categories. Results Surprisingly, recommended diets would cost 20% less than the current diet in Queensland as a whole. Households spent around 60% of their food budget on discretionary choices (that is, those not required for health that are high in saturated fat, added sugar, salt and/or alcohol). Queensland families would need to spend around 23% of their income on recommended diets. However, recommended diets would not be affordable in low socioeconomic or very remote areas, costing 30 and 35% of median household income respectively. The government supplements due to the SARS-CoV-2 pandemic would improve affordability of recommended diets by 29%. Conclusions Study findings highlight that while price is one factor affecting consumer food choice, other drivers such as taste, convenience, advertising and availability are important. Nevertheless, the study found that recommended diets would be unaffordable in very remote areas, and that low-income families are likely experiencing food stress, irrespective of where they live in Queensland. Policy actions, such as increasing to 20% the current 10% tax differential between basic healthy, and unhealthy foods in Australia, and supplementing incomes of vulnerable households, especially in remote areas, are recommended to help improve diet equity and sustainability, and health and wellbeing for all. Supplementary Information The online version contains supplementary material available at 10.1186/s12939-021-01481-8.
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Affiliation(s)
- Amanda Lee
- School of Public Health, Faculty of Medicine, University of Queensland, 266 Herston Rd, Herston, QLD, 4006, Australia.
| | - Dori Patay
- School of Public Health, Faculty of Medicine, University of Queensland, 266 Herston Rd, Herston, QLD, 4006, Australia
| | - Lisa-Maree Herron
- School of Public Health, Faculty of Medicine, University of Queensland, 266 Herston Rd, Herston, QLD, 4006, Australia
| | - Ella Parnell Harrison
- School of Public Health, Faculty of Medicine, University of Queensland, 266 Herston Rd, Herston, QLD, 4006, Australia
| | - Meron Lewis
- School of Public Health, Faculty of Medicine, University of Queensland, 266 Herston Rd, Herston, QLD, 4006, Australia
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Gómez-Donoso C, Sacks G, Vanderlee L, Hammond D, White CM, Nieto C, Bes-Rastrollo M, Cameron AJ. Public support for healthy supermarket initiatives focused on product placement: a multi-country cross-sectional analysis of the 2018 International Food Policy Study. Int J Behav Nutr Phys Act 2021; 18:78. [PMID: 34127002 PMCID: PMC8201822 DOI: 10.1186/s12966-021-01149-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Accepted: 06/02/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Food retail environments have an influential role in shaping purchasing behavior and could contribute to improving dietary patterns at a population level. However, little is known about the level of public support for different types of initiatives to encourage healthy food choices in supermarkets, and whether this varies across countries or context. The current study aimed to explore the level of support for three potential supermarket initiatives focused on product placement across five countries, and factors that may influence this support. METHODS A total of 22,264 adults from Australia, Canada, Mexico, the United Kingdom and the United States (US) provided information on support for three supermarket initiatives related to product placement (targeting product positioning: 'checkouts with only healthy products', 'fewer end-of-aisle displays containing unhealthy foods or soft drinks' or availability: 'more shelf space for fresh and healthier foods') as part of the online 2018 International Food Policy Study. The proportion of respondents that supported each initiative was assessed across countries, and multivariable logistic regression analyses were conducted to evaluate the influence of sociodemographic factors on support. RESULTS The initiative that received the highest support was 'more shelf space for fresh and healthier foods': 72.0% [95% CI 71.3-72.7], whereas 'checkouts with only healthy products' received the lowest support: 48.6% [95% CI 47.8-49.4]. The level of support differed between countries (p < 0.001 for all initiatives), with the US generally showing the lowest support and Mexico the highest. Noteworthy, in the overall sample, there was not much opposition to any of the initiatives (2.5-14.2%), whereas there was a large proportion of neutral responses (25.5-37.2%). Respondents who were older, female, highly educated, and those who reported having more nutrition knowledge tended to be more supportive, with several differences between countries and initiatives. CONCLUSIONS Most people in the assessed five countries showed a generally high level of support for three placement initiatives in supermarkets to encourage healthy food choices. Support varied by type of initiative (i.e., product positioning or availability) and was influenced by several factors related to country context and sociodemographic characteristics. This evidence could prompt and guide retailers and policy makers to take stronger action to promote healthy food choices in stores.
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Affiliation(s)
- Clara Gómez-Donoso
- Department of Preventive Medicine and Public Health, School of Medicine, University of Navarra, Pamplona, Spain
- Biomedical Research Centre Network on Physiopathology of Obesity and Nutrition (CIBERobn), Institute of Health Carlos III, Madrid, Spain
| | - Gary Sacks
- Global Obesity Centre (GLOBE), Institute for Health Transformation, Deakin University, 221 Burwood Highway, Burwood VIC, Geelong, 3125, Australia
| | - Lana Vanderlee
- Centre Nutrition, Santé et Société (NUTRISS), Institut sur la nutrition et les aliments fonctionnels, École de nutrition, Université Laval, Québec, Canada
| | - David Hammond
- School of Public Health and Health Systems, University of Waterloo, Waterloo, Canada
| | - Christine M White
- School of Public Health and Health Systems, University of Waterloo, Waterloo, Canada
| | - Claudia Nieto
- Centro de Investigación en Nutrición y Salud, Instituto Nacional de Salud Pública, Cuernavaca, Mexico
| | - Maira Bes-Rastrollo
- Department of Preventive Medicine and Public Health, School of Medicine, University of Navarra, Pamplona, Spain
- Biomedical Research Centre Network on Physiopathology of Obesity and Nutrition (CIBERobn), Institute of Health Carlos III, Madrid, Spain
| | - Adrian J Cameron
- Global Obesity Centre (GLOBE), Institute for Health Transformation, Deakin University, 221 Burwood Highway, Burwood VIC, Geelong, 3125, Australia.
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Dhuria P, Lawrence W, Crozier S, Cooper C, Baird J, Vogel C. Women's perceptions of factors influencing their food shopping choices and how supermarkets can support them to make healthier choices. BMC Public Health 2021; 21:1070. [PMID: 34090410 PMCID: PMC8178895 DOI: 10.1186/s12889-021-11112-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 05/13/2021] [Indexed: 11/23/2022] Open
Abstract
OBJECTIVES To examine women's perceptions of factors that influence their food shopping choices, particularly in relation to store layout, and their views on ways that supermarkets could support healthier choices. DESIGN This qualitative cross-sectional study used semi-structured telephone interviews to ask participants the reasons for their choice of supermarket and factors in-store that prompted their food selections. The actions supermarkets, governments and customers could take to encourage healthier food choices were explored with women. Thematic analysis was conducted to identify key themes. SETTING Six supermarkets across England. PARTICIPANTS Twenty women customers aged 18-45 years. RESULTS Participants had a median age of 39.5 years (IQR: 35.1, 42.3), a median weekly grocery spend of £70 (IQR: 50, 88), and 44% had left school aged 16 years. Women reported that achieving value for money, feeling hungry, tired, or stressed, and meeting family members' food preferences influenced their food shopping choices. The physical environment was important, including product quality and variety, plus ease of accessing the store or products in-store. Many participants described how they made unintended food selections as a result of prominent placement of unhealthy products in supermarkets, even if they adopted more conscious approaches to food shopping (i.e. written or mental lists). Participants described healthy eating as a personal responsibility, but some stated that governments and supermarkets could be more supportive. CONCLUSIONS This study highlighted that in-store environments can undermine intentions to purchase and consume healthy foods. Creating healthier supermarket environments could reduce the burden of personal responsibility for healthy eating, by making healthier choices easier. Future research could explore the interplay of personal, societal and commercial responsibility for food choices and health status.
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Affiliation(s)
- Preeti Dhuria
- Medical Research Council Lifecourse Epidemiology Unit, University of Southampton, Southampton General Hospital, Tremona Road, Southampton, SO16 6YD, UK.
| | - Wendy Lawrence
- Medical Research Council Lifecourse Epidemiology Unit, University of Southampton, Southampton General Hospital, Tremona Road, Southampton, SO16 6YD, UK
- National Institute for Health Research Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Tremona Road, Southampton, SO16 6YD, UK
| | - Sarah Crozier
- Medical Research Council Lifecourse Epidemiology Unit, University of Southampton, Southampton General Hospital, Tremona Road, Southampton, SO16 6YD, UK
| | - Cyrus Cooper
- Medical Research Council Lifecourse Epidemiology Unit, University of Southampton, Southampton General Hospital, Tremona Road, Southampton, SO16 6YD, UK
- National Institute for Health Research Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Tremona Road, Southampton, SO16 6YD, UK
| | - Janis Baird
- Medical Research Council Lifecourse Epidemiology Unit, University of Southampton, Southampton General Hospital, Tremona Road, Southampton, SO16 6YD, UK
- National Institute for Health Research Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Tremona Road, Southampton, SO16 6YD, UK
| | - Christina Vogel
- Medical Research Council Lifecourse Epidemiology Unit, University of Southampton, Southampton General Hospital, Tremona Road, Southampton, SO16 6YD, UK
- National Institute for Health Research Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Tremona Road, Southampton, SO16 6YD, UK
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Stuber JM, Hoenink JC, Beulens JWJ, Mackenbach JD, Lakerveld J. Shifting toward a healthier dietary pattern through nudging and pricing strategies: A secondary analysis of a randomized virtual supermarket experiment. Am J Clin Nutr 2021; 114:628-637. [PMID: 33829225 PMCID: PMC8326041 DOI: 10.1093/ajcn/nqab057] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Accepted: 02/11/2021] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Nudging and salient pricing are promising strategies to promote healthy food purchases, but it is possible their effects differ across food groups. OBJECTIVE To investigate in which food groups nudging and/or pricing strategies most effectively changed product purchases and resulted in within-food groups substitutions or spillover effects. METHODS In total, 318 participants successfully completed a web-based virtual supermarket experiment in the Netherlands. We conducted a secondary analysis of a mixed randomized experiment consisting of 5 conditions (within subject) and 3 arms (between subject) to investigate the single and combined effects of nudging (e.g., making healthy products salient), taxes (25% price increase), and/or subsidies (25% price decrease) across food groups (fruit and vegetables, grains, dairy, protein products, fats, beverages, snacks, and other foods). Generalized linear mixed models were used to estimate the incidence rate ratios and 95% CIs for changes in the number of products purchased. RESULTS Compared with the control condition, the combination of subsidies on healthy products and taxes on unhealthy products in the nudging and price salience condition was overall the most effective, as the number of healthy purchases from fruit and vegetables increased by 9% [incidence rate ratio (IRR) = 1.09; 95% CI: 1.02, 1.18], grains by 16% (IRR = 1.16; 95% CI: 1.05, 1.28), and dairy by 58% (IRR = 1.58; 95% CI: 1.31, 1.89), whereas the protein and beverage purchases did not significantly change. Regarding unhealthy purchases, grains decreased by 39% (IRR = 0.72; 95% CI: 0.63, 0.82) and dairy by 30% (IRR = 0.77; 95% CI: 0.68, 0.87), whereas beverage and snack purchases did not significantly change. The groups of grains and dairy showed within-food group substitution patterns toward healthier products. Beneficial spillover effects to minimally targeted food groups were seen for unhealthy proteins (IRR = 0.81; 95% CI: 0.73, 0.91). CONCLUSIONS Nudging and salient pricing strategies have a differential effect on purchases of a variety of food groups. The largest effects were found for dairy and grains, which may therefore be the most promising food groups to target in order to achieve healthier purchases. The randomized trial on which the current secondary analyses were based is registered in the Dutch trial registry (NTR7293; www.trialregister.nl).
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Affiliation(s)
| | - Jody C Hoenink
- Department of Epidemiology and Data Science, Amsterdam Public Health Research Institute, Amsterdam UMC, VU University Amsterdam, Amsterdam, Netherlands,Upstream Team, Amsterdam UMC, VU University Amsterdam, Amsterdam, Netherlands
| | - Joline W J Beulens
- Department of Epidemiology and Data Science, Amsterdam Public Health Research Institute, Amsterdam UMC, VU University Amsterdam, Amsterdam, Netherlands,Upstream Team, Amsterdam UMC, VU University Amsterdam, Amsterdam, Netherlands,Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands
| | - Joreintje D Mackenbach
- Department of Epidemiology and Data Science, Amsterdam Public Health Research Institute, Amsterdam UMC, VU University Amsterdam, Amsterdam, Netherlands,Upstream Team, Amsterdam UMC, VU University Amsterdam, Amsterdam, Netherlands
| | - Jeroen Lakerveld
- Department of Epidemiology and Data Science, Amsterdam Public Health Research Institute, Amsterdam UMC, VU University Amsterdam, Amsterdam, Netherlands,Upstream Team, Amsterdam UMC, VU University Amsterdam, Amsterdam, Netherlands
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30
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The Healthiness of Food and Beverages on Price Promotion at Promotional Displays: A Cross-Sectional Audit of Australian Supermarkets. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17239026. [PMID: 33287395 PMCID: PMC7729449 DOI: 10.3390/ijerph17239026] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 11/28/2020] [Accepted: 11/30/2020] [Indexed: 12/22/2022]
Abstract
Supermarket environments can strongly influence purchasing decisions. Price promotions are recognised as a particularly persuasive tactic, but the healthiness of price promotions in prominent in-store locations is understudied. This study compared the prevalence and magnitude of price promotions on healthy and unhealthy food and beverages (foods) displayed at prominent in-store locations within Australian supermarkets, including analyses by supermarket group and area-level socio-economic position. A cross-sectional in-store audit of price promotions on foods at key display areas was undertaken in 104 randomly selected stores from major Australian supermarket groups (Woolworths, Coles, Aldi and independents) in Victoria, Australia. Of the display space dedicated to foods with price promotions, three of the four supermarket groups had a greater proportion of display space devoted to unhealthy (compared to healthy) foods at each promotional location measured (end of aisles: 66%; island bins: 53%; checkouts: 88%). Aldi offered very few price promotions. Few measures varied by area-level socio-economic position. This study demonstrated that price promotions at prominent in-store locations in Australian supermarkets favoured unhealthy foods. Marketing of this nature is likely to encourage the purchase of unhealthy foods, highlighting the need for retailers and policy-makers to consider addressing in-store pricing and placement strategies to encourage healthier food environments.
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Houghtaling B, Serrano E, Chen S, Kraak VI, Harden SM, Davis GC, Misyak S. Supplemental Nutrition Assistance Program (SNAP)-Authorized Retailers' Perceived Costs to Use Behavioral Economic Strategies to Encourage Healthy Product Sales. Ecol Food Nutr 2020; 60:212-224. [PMID: 33164562 DOI: 10.1080/03670244.2020.1833873] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
SNAP-authorized retailers could use marketing-mix and choice-architecture (MMCA) strategies to improve SNAP purchases, but associated costs are unknown. Perceived cost and inconvenience to implement eight MMCA strategies were assessed among 29 U.S. retailers. Differences in perspective were explored (owners vs. managers, corporate vs. independent retailers, and by format). Place changes (e.g., added refrigeration) were perceived more costly and prompting (e.g., shelf labeling) less costly. Managers rated the perceived inconvenience to make proximity changes higher than owners (3.78 ± 1.4 and 2.33 ± 1.2, respectively) (p < .05). Results can inform strategies to improve the adoption and implementation of healthy food retail programs.
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Affiliation(s)
- Bailey Houghtaling
- School of Nutrition and Food Sciences, Louisiana State University (LSU) & LSU Agricultural Center, Baton Rouge, Louisiana, USA
| | - Elena Serrano
- Virginia Family Nutrition Program, Department of Human Nutrition, Foods, and Exercise, Virginia Tech, Blacksburg, Virginia, USA
| | - Susan Chen
- Department of Human Nutrition, Foods, and Exercise, Virginia Tech, Blacksburg, Virginia, USA
| | - Vivica I Kraak
- Department of Human Nutrition, Foods, and Exercise, Virginia Tech, Blacksburg, Virginia, USA
| | - Samantha M Harden
- Department of Human Nutrition, Foods, and Exercise, Virginia Tech, Blacksburg, Virginia, USA
| | - George C Davis
- Department of Human Nutrition, Foods, and Exercise, Virginia Tech, Blacksburg, Virginia, USA.,Department of Agricultural and Applied Economics, Virginia Tech, Blacksburg, Virginia, USA
| | - Sarah Misyak
- Virginia Family Nutrition Program, Department of Human Nutrition, Foods, and Exercise, Virginia Tech, Blacksburg, Virginia, USA
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