The marketing of unhealthy foods has been implicated in poor diet and rising levels of obesity. Rapid developments in the digital food marketing ecosystem and associated research mean that contemporary review of the evidence is warranted. This preregistered (CRD420212337091) systematic review and meta-analysis aimed to provide an updated synthesis of the evidence for behavioural and health impacts of food marketing on both children and adults, using the 4Ps framework (Promotion, Product, Price, Place). Ten databases were searched from 2014 to 2021 for primary data articles of quantitative or mixed design, reporting on one or more outcome of interest following food marketing exposure compared with a relevant control. Reviews, abstracts, letters/editorials and qualitative studies were excluded. Eighty-two studies were included in the narrative review and twenty-three in the meta-analyses. Study quality (RoB2/Newcastle-Ottawa scale) was mixed. Studies examined 'promotion' (n 55), 'product' (n 17), 'price' (n 15) and 'place' (n 2) (some > 1 category). There is evidence of impacts of food marketing in multiple media and settings on outcomes, including increased purchase intention, purchase requests, purchase, preference, choice, and consumption in children and adults. Meta-analysis demonstrated a significant impact of food marketing on increased choice of unhealthy foods (OR = 2·45 (95 % CI 1·41, 4·27), Z = 3·18, P = 0·002, I2 = 93·1 %) and increased food consumption (standardised mean difference = 0·311 (95 % CI 0·185, 0·437), Z = 4·83, P < 0·001, I2 = 53·0 %). Evidence gaps were identified for the impact of brand-only and outdoor streetscape food marketing, and for data on the extent to which food marketing may contribute to health inequalities which, if available, would support UK and international public health policy development.

International migration is contributing to changes in the sociocultural and the economic landscapes of many cities in the world. As part of the changes in cities, we are witnessing an increased use of community gardens as spaces for wellbeing restoration, for social connection, and for addressing the challenge of food insecurity, particularly cultural food insecurity. Cultural food security is one major under-recognized issue, yet is pivotal to address given its role in positively supporting immigrants' settlement and health. However, there is lack of comprehensive evidence of how neighborhoods are changing to accommodate these initiatives and meet the cultural food needs of diverse communities. Our scoping review explored evidence from existing literature on how neighborhoods are changing to accommodate community gardens (CG) as a novel means to address cultural food insecurity among immigrant communities and support place-making and resettlement. Our literature search identified several areas of transformations including the different kinds of community gardens that have emerged, the associated physical, social, cultural, environmental, economic, and policy changes that have been reported in other countries in the Global North. The review also identified multifold benefits of CG in this regard, including benefits to health and wellbeing - the physical (i.e. nutrition and physical activity), mental (e.g., a place for healing for immigrants fleeing war-torn countries, domestic violence, trauma; fostering a connection to the land in new environments via place-making), and social (e.g., fostering community connections and cultural knowledge exchange). Despite the known benefits of community gardens to immigrants' health and wellbeing, there remains a lack of comprehensive evidence in Canada on how neighborhoods are changing to accommodate these initiatives and meet the cultural food needs of diverse communities. Such studies will serve as sources of evidence for novel ideas to address the cultural food needs and food insecurity of immigrant communities, which is becoming a growing public health concern.

Farmers around the world produce more than enough to feed everyone on the planet, yet since 2017 hunger has increased sharply. Promoting food production and distribution that are socially equitable and environmentally sustainable is a necessity, in Europe and globally. This paper highlights the European Union’s role in addressing global hunger and supporting a sustainable and equitable global food system transformation. A new direction is needed and the EU can make a positive change. Smallholder farmers in the Global South offer enormous untapped potential for fighting global hunger but they must be better supported. The EU must also stand for climate justice by taking the climate change threat to food security seriously, limit the EU’s global land use footprint by stopping unsustainable and irresponsible land use that drives hunger and inequality, and balance the power in food systems by breaking corporate domination and enhancing equitable global food governance.

This discussion paper proposes a framework of four indicators of transformational adaptation – the breadth and depth of change, the intention to achieve transformation, scale and sustainability – and provides a framework to apply these indicators to four types of interventions in agri-food systems. The paper was co-commissioned with Catholic Relief Services.

Most wars of the late 20th and early 21st centuries have been “food wars”: food and hunger were used as weapons, food and food-related water and energy infrastructure were damaged intentionally or incidentally, and food insecurity persisted as a legacy of conflict destructiveness. Frequently, food insecurity, in turn, is a trigger or underlying cause of conflict. This paper analyzes 54 active conflict, refugee-hosting, and conflict legacy countries with populations in 2023 facing “crisis-level” acute food insecurity, i.e., at Integrated Food Security Phase Classification (IPC) 3 or higher. In total, nearly 278 million people in these countries faced crisis-level hunger in 2023, accounting for 99% of the global population at IPC 3+ (281.6 million people). Analysis indicates that war-displacement-hunger crises occur in countries that continue to rely heavily on primary product exports. Paradoxically, peacebuilding efforts have often assumed that economic liberalization offers the best or only pathway to sustainable peace. Yet struggle for control over fungible primary commodities can fund more violence, increased inequality, continued instability, and the risk of renewed conflict. Agricultural export commodities are important sources of revenue for smallholder farmers and governments in conflict-affected, food-insecure countries. The conflict implications of export- and food-crop value chains are therefore crucial for future food-wars policy discussions and actions. Some efforts seek to link export crops to efforts to achieve peace, sustainable livelihoods, and environmental restoration. Other proposed solutions focus on adopting more holistic national development strategies, including food-systems approaches that protect and promote the right to food and livelihood security, as well as policy approaches and frameworks that might more effectively consider conflict, globalization, and climate change in food and nutrition policy.

Introduction: The adolescent diet is high in sugars compared with other age groups. Effective approaches to support sugar reduction by adolescents are needed as part of caries prevention. Objective: To systematically review peer-reviewed evidence (1990 to 2023) to identify effective behavior change techniques (BCTs) for sugars reduction in adolescents aged 10 to 16 y. Methods: Nine databases (CINAHL, Cochrane, Dental and Oral Sciences Source, EMBASE, MEDLINE, PubMed, PsycINFO, Scopus, and Web of Science) were searched. Identified articles were screened independently in duplicate for eligibility. Interventions were eligible if they aimed to change adolescent dietary behavior(s) and reported pre- and postsugar-relevant outcome measures. Interventions from included studies were coded using a 93-item BCT Taxonomy (Michie Taxonomy v1). Risk of bias was assessed using the Effective Public Health Practice Project Quality Assessment Tool for Quantitative Studies. Evidence synthesis by vote counting (number of studies showing positive versus null or negative effects) was applied to BCTs that were present in more than 5 interventions. Results: Of 16,271 articles identified, 764 were screened in full, yielding 35 studies (in 43 papers), of which 3 were uncodeable. BCTs coded in interventions covered 11 of 16 BCT clusters and 25 of 93 individual BCTs in the BCT taxonomy. The median number of BCTs applied per study was 3 (interquartile range 2-6). Evidence synthesis indicated that the BCTs most positively associated with a positive reduction in sugars were (with the percentage of strong-/moderate-quality studies applying these techniques that successfully reduced sugars intake in brackets) feedback on behavior (100%), information on social and environmental consequences (100%), problem solving (75%), and social comparison (75%). Conclusion: Notwithstanding limitations in available data, the current evidence most strongly supports the use of BCTs relating to feedback on behavior, providing information on the social and environmental consequences, include problem solving and making social comparisons, to lower sugars intake in adolescents. Knowledge transfer statement: The results of this study will enable clinicians to provide more effective dietary advice when supporting dietary behavior change to reduce sugars intake in adolescents. The results may also be used by researchers to guide future directions for research into effective sugars reduction in adolescents.

Background: Food insecurity has involved more than 750 million individuals worldwide. The association of food insecurity with socio-economic factors is also undeniable demand more consideration. Food insecurity will become a global priority by 2030. This systematic review and meta-analysis examined current literature concerning the association between food insecurity and psychological distress. Methods: Relevant researches were identified by searching databases including PubMed, EMBASE, Scopus, and Web of Science, ProQuest, and Cochrane Library up to June 2024 without language limitation. Then a snowball search was conducted in the eligible studies. The quality assessment was made through Newcastle-Ottawa Scale. Results: Data were available from 44 cross-sectional articles for systematic review and 17 eligible articles for meta-analysis with 2,267,012 and 1,953,636 participants, respectively. Findings support the growing segment of literature on the association between food insecurity and psychological distress. The highly represented groups were households with low income. Psychological and diabetic distress was directly associated with food insecurity as it increased the odds of distress to 329% (OR: 3.29; 95% CI: 2.46-4.40). Sleep problems, anxiety, depression, lower life satisfaction, obesity, and a higher rate of smoking were among the secondary outcomes. Conclusion: Food insecurity was a common stressor that can have a negative impact on psychological well-being and even physical health. The findings should be considered in the public health and making policy-making process.

Drought is the most significant climatic shock faced by pastoralists and agro-pastoralists in the drylands of Sub-Saharan Africa. Early warning information can help households better prepare and respond to drought. However, providing precise early warning information and monitoring indicators of resilience in remote places affected by conflicts, with dispersed markets and poor infrastructure, is hampered by limited ability to gather data using conventional survey methods. This policy brief shares researchers’ experience of using crowdsourced data gathered with the platform KAZNET to observe changes in food security attributable to drought. Researchers further assessed the mechanisms by which drought impacts occur. Uncovering these mechanisms can guide policymakers to develop strategies to enhance resilience and improve productivity in drought, thereby mitigating food insecurity. Such knowledge can help provide early warning and inform anticipatory action when dealing with shocks. This work is part of the Supporting Pastoralism and Agriculture in Recurrent and Protracted Crises (SPARC) Programme.

The world’s governments are falling far short of the pledges they made to eradicate extreme poverty and create a world with “zero hunger” by 2030 the first and second Sustainable Development Goals (SDGs). On current trends, the poverty goal will be missed by a wide margin. These failures have stalled progress in other areas, contributing to a wider crisis in attaining the SDGs. Millions of people are living with avoidable poverty and preventable hunger. In response, the Brazilian Presidency of the G20 has proposed a Global Hunger and Poverty Alliance to galvanise change. The alliance would seek to mobilise political leadership and financial resources to support policies with a proven potential to accelerate progress on SDGs 1 and 2. Success would have transformative effects. Getting back on track to meet the 2030 goals would ease the suffering of millions of people, unlock their potential, and transform their prospects for human development. It would also renew the ambition of the SDGs. This report, requested by the G20 Presidency, highlights the potential for rapid progress. It focuses on the international financing landscape for supporting SDGs 1 and 2 in low-income countries (LICs) and lower-middle-income countries (LMICs). These countries account for most extreme poverty and hunger and a large (and rising) share of the SDG delivery shortfall. The authors trace the current trajectory of LICs and LMICs against the SDG targets. They then provide a detailed mapping of the official development finance available to LICs and LMICs for policies geared towards eradicating poverty and attaining zero hunger. This work is part of the Supporting Pastoralism and Agriculture in Recurrent and Protracted Crises (SPARC) Programme.

Context: Shifting from current dietary patterns to diets rich in plant-based (PB) foods and lower in animal-based foods (ABFs) is generally regarded as a suitable strategy to improve nutritional health and reduce environmental impacts. Despite the recent growth in supply of and demand for novel plant-based foods (NPBFs), a comprehensive overview is lacking. Objectives: This review provides a synthesis of available evidence, highlights challenges, and informs public health and environmental strategies for purposeful political decision-making by systematically searching, analyzing, and summarizing the available literature. Data sources: Five peer-reviewed databases and grey literature sources were rigorously searched for publications. Data extraction: Study characteristics meeting the inclusion criteria regarding NPBF nutrient composition and health and environmental outcomes in high-income countries were extracted. Data analysis: Fifty-seven peer-reviewed and 36 grey literature sources were identified; these were published in 2016-2022. NPBFs typically have substantially lower environmental impacts than ABFs, but the nutritional contents are complex and vary considerably across brands, product type, and main primary ingredient. In the limited evidence on the health impacts, shifts from ABFs to PB meats were associated with positive health outcomes. However, results were mixed for PB drinks, with links to micronutrient deficiencies. Conclusion: If carefully selected, certain NPBFs have the potential to be healthier and nutrient-rich alternatives to ABFs and typically have smaller environmental footprints. More disaggregated categorization of various types of NPBFs would be a helpful step in guiding consumers and key stakeholders to make informed decisions. To enable informed policymaking on the inclusion of NPBFs in dietary transitions as part of a wider net-zero and health strategy, future priorities should include nutritional food standards, labelling, and subdivisions or categorizations of NPBFs, as well as short- and long-term health studies evaluating dietary shifts from ABFs to NPBFs and standardized environmental impact assessments, ideally from independent funders.

Context: Many countries and institutions have adopted policies to promote healthier food and drink availability in various settings, including public sector workplaces. Objective: The objective of this review was to systematically synthesize evidence on barriers and facilitators to implementation of and compliance with healthy food and drink policies aimed at the general adult population in public sector workplaces. Data sources: Nine scientific databases, 9 grey literature sources, and government websites in key English-speaking countries along with reference lists. Data extraction: All identified records (N = 8559) were assessed for eligibility. Studies reporting on barriers and facilitators were included irrespective of study design and methods used but were excluded if they were published before 2000 or in a non-English language. Data analysis: Forty-one studies were eligible for inclusion, mainly from Australia, the United States, and Canada. The most common workplace settings were healthcare facilities, sports and recreation centers, and government agencies. Interviews and surveys were the predominant methods of data collection. Methodological aspects were assessed with the Critical Appraisal Skills Program Qualitative Studies Checklist. Generally, there was poor reporting of data collection and analysis methods. Thematic synthesis identified 4 themes: (1) a ratified policy as the foundation of a successful implementation plan; (2) food providers' acceptance of implementation is rooted in positive stakeholder relationships, recognizing opportunities, and taking ownership; (3) creating customer demand for healthier options may relieve tension between policy objectives and business goals; and (4) food supply may limit the ability of food providers to implement the policy. Conclusions: Findings suggest that although vendors encounter challenges, there are also factors that support healthy food and drink policy implementation in public sector workplaces. Understanding barriers and facilitators to successful policy implementation will significantly benefit stakeholders interested or engaging in healthy food and drink policy development and implementation. Systematic review registration: PROSPERO registration no. CRD42021246340.

Background: Children's nutrition in Africa, especially among those displaced by conflicts, is a critical global health concern. Adequate nutrition is pivotal for children's well-being and development, yet those affected by displacement confront distinctive challenges. This scoping review seeks to enhance our current knowledge, filling gaps in understanding nutritional and associated health risks within this vulnerable population. Objective: We conducted a scoping review of the literature on the nutritional status and associated health outcomes of this vulnerable population with the goal of informing targeted interventions, policy development, and future research efforts to enhance the well-being of African refugee and internally displaced children. Methods: This scoping review adopted Arksey and O'Malley (2005)'s methodology and considered studies published between 2000 and 2021. Results: Twenty-three published articles met the inclusion criteria. These articles highlighted a wide variation in the levels of malnutrition among African refugee/internally displaced (IDP) children, with the prevalence of chronic malnutrition (stunting) and acute malnutrition (wasting) ranging from 18.8 to 52.1% and 0.04 to 29.3%, respectively. Chronic malnutrition was of 'high' or 'very high' severity (according to recent WHO classifications) in 80% of studies, while acute malnutrition was of 'high' or 'very high' severity in 50% of studies. In addition, anemia prevalence was higher than the 40% level considered to indicate a severe public health problem in 80% of the studies reviewed. Conclusion: In many settings, acute, chronic, and micronutrient malnutrition are at levels of great concern. Many countries hosting large, displaced populations are not represented in the literature, and research among older children is also lacking. Qualitative and intervention-focused research are urgently needed.

BACKGROUND Several systematic reviews (SRs) have investigated the association between ultra -processed foods (UPFs) and the risk of hypertension in various populations. However, the quality of the evidence remains unclear. This umbrella review was thus conducted to fill this gap. METHODS We searched for SRs with and without meta -analyses comparing high UPF versus low UPF consumption on the risk of hypertension in the Cochrane Library, Embase, PubMed, and Web of Science from inception to August 2022. This study was registered in PROSPERO (No. CRD42022352934). The A MeaSurement Tool to Assess systematic Reviews 2 (AMSTAR -2) tool and the Preferred Reporting Item for Systematic Review and Meta -analysis 2009 (PRISMA 2009) statement were used to evaluate the methodological and reporting quality of the included SRs. Stata 15/SE was used to reanalyse the data using the random -effects model, and the risk of bias of observational studies from included SRs was reassessed using the Newcastle -Ottawa Scale (NOS) tool. The certainty of the evidence body was assessed using the GRADE recommendation. RESULTS Seven SRs were included in the umbrella review. Among them, nine observational studies (5 cross-sectional and 4 cohort studies), whose available data were resynthesised using meta -analysis. The methodological and reporting quality of the included SRs were relatively poor. The meta -analysis results revealed suggestive evidence of an association between high UPF consumption and the incidence of hypertension (odds ratio: 1.23, 95% con fidence interval: 1.11 to 1.37, p < 0.001, 95% prediction interval: 0.92 to 1.64, critically low certainty) compared to low UPF consumption. CONCLUSION High UPF consumption is associated with an increased risk of hypertension. However, well-conducted SRs, including high -quality prospective cohort studies, are needed to further verify these findings.

Consumption of ultra-processed foods (UPFs) is associated with various adverse health outcomes, which significantly influence the global disease burden. This umbrella review aimed to fill the knowledge gap and guide public health practices by summarizing the association between UPFs and multiple health outcomes. A total of four databases were systematically searched from inception to December 2022, and 14 eligible systematic re-views (SRs) with meta-analyses (MAs) were identified. The SRs were published in 10 journals from 2020 to 2023, with 54,147-5,750,133 participants and 5-61 studies. The overall corrected covered area (CCA) was corresponded to a slight overlap. The results showed that an increased UPFs consumption is associated with multiple health outcomes (e.g., obesity, diabetes, hypertension, mortality). Only two SRs were "Moderate" regarding the overall methodological quality, while the other twelve were "Low" or "Critically low". Therefore, well-conducted SRs with high-quality prospective cohorts with a particular focus on special populations are needed to verify these findings further.

Background: Dietary factors are among the largest and costliest drivers of chronic diseases in England. As a response, the government implements a range of population interventions to promote healthy diets by targeting food environments. Objectives: This study aimed to conduct a systematic review of the effectiveness, cost-effectiveness and policy process of real-world evaluations of national and state policies on improving food environments, with a focus on whether they were regulatory, voluntary or partnership approaches. Data sources: Fourteen relevant English-language databases were searched in November 2020 for studies published between 2010 and 2020. Methods: Six separate evidence reviews were conducted to assess the evidence of effectiveness, cost-effectiveness and policy processes of policies to improve food environments. Results: A total of 483 primary research evaluations and 14 evidence syntheses were included. The study reveals considerable geographic, methodological and other imbalances across the literature, with, for example, 81% of publications focusing only on 12 countries. The systematic reviews also reveal the effectiveness and cost-effectiveness of reviewed regulatory approaches designed to improve health, consumer behaviour and food environment outcomes while public-private partnerships and voluntary approaches to improve diets via reformulation, advertising and promotion restrictions or other changes to the environment were limited in their effectiveness and cost-effectiveness. The study also revealed key enabling and impeding factors across regulatory, voluntary and public-private partnership approaches. Conclusion: From the available evidence reviewed, this study finds that regulatory approaches appear most effective at improving the food environment, and voluntary agreements and partnerships have limited effectiveness. These findings should be carefully considered in future public health policy development, as should the findings of geographic imbalance in the evidence and inadequate representation of equity dimensions across the policy evaluations. We find that food policies are at times driven by factors other than the evidence and shaped by compromise and pragmatism. Food policy should be first and foremost designed and driven by the evidence of greatest effectiveness to improve food environments for healthier diets. Limitations: This was a complex evidence synthesis due to its scope and some policy evaluations may have been missed as the literature searches did not include specific policy names. The literature was limited to studies published in English from 2010 to 2020, potentially missing studies of interest. Future work: Priorities include the need for guidance for appraising risk of bias and quality of non-clinical studies, for reporting policy characteristics in evaluations, for supporting evaluations of real-world policies equitably across geographic regions, for capturing equity dimensions in policy evaluations, and for guideline development for quality and risk of bias of policy evaluations. Study registration: This study is registered as PROSPERO CRD42020170963. Funding: This award project was funded by the National Institute for Health and Care Research (NIHR) Public Health Research programme (NIHR award ref: NIHR128607) and is published in full in Public Health Research; Vol. 12, No. 8. See the NIHR Funding and Awards website for further award information.

Infant and toddler food (ITF), including powdered infant and follow-up formula (PIFF) and complementary food (CF), provides the majority of early-life nutrients for young children. As infants and toddlers are more vulnerable to foodborne diseases, the safety concern of ITF is the ultimate priority. However, nationwide surveillance for the presence of hazards, specifically microbiological hazards, in the Chinese ITF is partially known, posing a significant knowledge gap for risk ranking. Most importantly, the related regional surveys were largely published in Chinese, making the data unavailable for global sharing. To bridge these gaps, we screened 5,306 publications and conducted a comprehensive meta-analysis for microbiological hazards using 129 qualified studies. The four most reported microbiological hazards in ITF were Bacillus cereus (13.4 %), Cronobacter (4.8 %), Staphylococcus aureus (1.3 %), and Salmonella (1.1 %). B. cereus is a risk factor in ITF, specifically in PIFF, cereals, and ready-to-eat food. The prevalence of B. cereus was high in Northern and Southern China, while the prevalence of Cronobacter was high in Central China. Cronobacter is a microbiological hazard, specifically in PIFF, with a prevalence of 3.0 %. Interestingly, the prevalence dynamics of Cronobacter and B. cereus in ITF were rising and stable, respectively, whereas the prevalence of S. aureus and Salmonella decreased over time. Together, our analysis will promote the global sharing of these critical findings and may guide future policy making.

Food and nonalcoholic beverage marketing is implicated in poor diet and obesity in children. The rapid growth and proliferation of digital marketing has resulted in dramatic changes to advertising practices and children's exposure. The constantly evolving and data-driven nature of digital food marketing presents substantial challenges for researchers seeking to quantify the impact on children and for policymakers tasked with designing and implementing restrictive policies. We outline the latest evidence on children's experience of the contemporary digital food marketing ecosystem, conceptual frameworks guiding digital food marketing research, the impact of digital food marketing on dietary outcomes, and the methods used to determine impact, and we consider the key research and policy challenges and priorities for the field. Recent methodological and policy developments represent opportunities to apply novel and innovative solutions to address this complex issue, which could drive meaningful improvements in children's dietary health.

Background: Although Namibia has made strides in improving the policy enabling environment, eradication of malnutrition is still elusive. Objective: This review was aimed at determining the extent to which food and nutrition-related policies in Namibia address malnutrition. Methods: This study used a qualitative approach by retrospectively analysing policy frameworks that address malnutrition in Namibia from 1991 to 2022. The analysis employed the policy triangle framework to elucidate the contextual factors, content, actors and process involved in the policy development. Moreover, a comparative analysis of Namibian policies and those of other southern African countries was undertaken. Results: The review showed that there is a considerable degree of coherence in policy goals and strategies to address malnutrition despite parallel coordination structures. Policy process involved limited consultations with local communities which might have jeopardised the formulation of community problem-tailored interventions, ownership and participation in policy implementation. There is a strong political commitment to the eradication of malnutrition in Namibia. The Office of the Prime Minister played a leading role in policy development. Influential actors such as the UN agencies elevated the nutrition agenda. Further, the Namibian policy framework was generally similar to those of other southern African countries. Conclusions: The review showed that Namibia has relevant and comprehensive policies to address malnutrition, however, contextual factors indicated high levels of malnutrition still exist in the communities. Further research is needed to understand the barriers and enablers to optimal nutrition for children under five years in Namibia.

Despite evidence that dietary population health interventions are effective and widely accepted, they remain the topic of intense debate centring on the appropriate role of the state. This review sought to identify how the role of the state in intervening in individuals' food practices is conceptualized across a wide range of literatures. We searched 10 databases and 4 journals for texts that debated dietary population health interventions designed to affect individuals' health-affecting food practices. Two co-authors independently screened these texts for eligibility relative to inclusion and exclusion criteria. Thirty-five texts formed our final corpus. Through critical reflexive thematic analysis (TA), we generated 6 themes and 2 subthemes concerning choice, responsibility for health, balancing benefits and burdens of intervention, the use of evidence, fairness, and the legitimacy of the state's actions. Our analysis found that narratives that aim to prevent effective regulation are entrenched in academic literatures. Discourses that emphasized liberty and personal responsibility framed poor health as the result of 'lifestyle choices'. Utilitarian, cost-benefit rationales pervaded arguments about how to best balance the benefits and burdens of state intervention. Claims about fairness and freedom were used to evoke powerful common meanings, and evidence was used politically to bolster interests, particularly those of the food industry. This review identifies and critically analyses key arguments for and against population dietary public health policies. Our findings should motivate public health researchers and practitioners to avoid unreflexively embracing framings that draw on the languages and logics of free market economics.

The obesity epidemic has become a major public health concern globally, and the food supply is a significant driver of this trend. Front-of-package (FOP) labels have been implemented in many countries to encourage healthier food choices. This systematic review aimed to examine the effect of FOP label implementation on food manufacturers' practices. A comprehensive search of multiple databases was conducted following PRISMA guidelines, identifying 39 relevant articles from 1990 to 2021. The studies indicated that FOP labels conveying intuitive information influenced product reformulation, whereas those with numerical information without specific guidance had no impact on reducing unhealthy nutrients. The most common outcomes were sodium, sugar, and calorie reduction. Mandatory policies reported higher and more consistent effects on product reformulation compared to voluntary approaches. Voluntary FOP labeling resulted in low uptake and tended to be applied to healthier products. Food manufacturers responded to FOP labeling heterogeneously, depending on the label design and type of enforcement. FOP label implementation can reduce nutrients of concern but food manufacturers behave strategically by labeling healthier choices. This review provides recommendations for maximizing the benefits of using FOP labels to prevent obesity, and findings can inform future public health research and policymaking.