Identification of positive childhood experiences with the potential to mitigate childhood unhealthy weight status in children within the context of adverse childhood experiences: a prospective cohort study.

Background: Despite potential protective and mitigating effects of positive childhood experiences (PCEs) on poor health outcomes, limited research has identified relevant PCEs and examined their individual and cumulative associations with weight status, or their mitigating effects on the associations between adverse childhood experiences (ACEs) and obesity in children. This study aims to develop an exploratory PCEs Index with the potential to protect against or mitigate the association between ACEs and unhealthy weight status.

Methods: Data came from the Growing Up in New Zealand study.

Extent and Nature of Television Food and Nonalcoholic Beverage Marketing in 9 Asian Countries: Cross-Sectional Study Using a Harmonized Approach.

Background: Rising childhood obesity rates in Asia are adding risk for the future adult burden of obesity and noncommunicable diseases. Weak policies across most Asian countries enable unrestricted marketing of obesogenic foods and beverages to children. Television is the common medium for food marketing to reach this audience.

Using a systems thinking approach to map the global rise of ultra-processed foods in population diets.

A key driver of obesity and diet-related illness globally has been the increased consumption of ultra-processed foods (UPFs). This paper aimed to identify the key actors, structures, incentives, and dynamics that characterize the global UPF system and have led to the dominance of UPFs in population diets. Based on a narrative review and using a systems thinking approach, we developed a causal loop diagram (CLD) of the global UPF system.

Children's exposure to unhealthy food advertising on Philippine television: content analysis of marketing strategies and temporal patterns.

Background: This study conducted an exploratory content analysis of TV food advertisements on the top three most popular channels for Filipino children aged two to 17 during school and non-school days.

Methods: Data were collected by manually recording of aired advertisements from 16 non-school days (July to September 2020) and 16 school days (January to April 2021). Descriptive and inferential statistical analyses were used to assess children's rates of exposure to food advertisements (mean ± SD of advertisements aired per channel per hour), the healthiness of promoted foods (as permitted (healthier) or not permitted (unhealthy) according to nutrient profiling models from the World Health Organization), and persuasive techniques used in food advertisements, including promotional characters and premium offers.

Prospective relationship between family screen time rules, obesogenic behaviours, and childhood obesity.

Family screen use rules (FSRs) could plausibly protect against the development of childhood obesity, although the mechanisms underlying these protective effects remain largely unexplored. This research aimed to investigate prospectively the associations between exposure to FSRs at age 24 months, obesogenic behaviours (excessive screen time and short sleep duration) at age 45 months, and obesity at age 54 months. Additionally, a model proposing the mediating role of obesogenic behaviours in the association between FSRs and childhood obesity was tested.

Three-year behavioural, health-related quality of life, and body mass index outcomes from the RESPOND randomized trial.

Objectives: Evaluate RESPOND, a community-based systems intervention to prevent childhood obesity and non-communicable diseases (NCD).

Study Design: Cluster randomized trial of building community capacity to use systems science for child obesity and NCD prevention in 10 local government areas in northeast Victoria, Australia. Four-year stepped wedge trial, adapted due to COVID-19 restrictions METHODS: Cluster randomized trial of building community capacity to use systems science for child obesity and NCD prevention in 10 local government areas in northeast Victoria, Australia.

Which government policies to create sustainable food systems have the potential to simultaneously address undernutrition, obesity and environmental sustainability?

Introduction: A transformation of food systems is urgently needed, given their contribution to three ongoing and interlinked global health pandemics: (1) undernutrition and food insecurity, (2) obesity and non-communicable diseases (NCDs), and (3) climate change and biodiversity loss. As policymakers make decisions that shape food systems, this study aimed to identify and prioritise policies with double- or triple-duty potential to achieve healthier and more environmentally sustainable food systems.

Methods: This study undertook a 4-step methodological approach, including (i) a compilation of international policy recommendations, (ii) an online survey, (iii) four regional workshops with international experts and (iv) a ranking for prioritisation.

Differences in the cost and environmental impact between the current diet in Brazil and healthy and sustainable diets: a modeling study.

Background: While healthy and sustainable diets benefit human and planetary health, their monetary cost has a direct impact on consumer food choices. This study aimed to identify the cost and environmental impact of the current Brazilian diet (CBD) and compare it with healthy and sustainable diets.

Methods: Data from the Brazilian Household Budget Survey 2017/18 and the Footprints of Foods and Culinary Preparations Consumed in Brazil database were used for a modeling study comparing the cost of healthy and sustainable diets (based on the Brazilian Dietary Guidelines (BDG) diet and the EAT-Lancet diet) versus the CBD.

Healthy together Victoria and childhood obesity study: effects of a large scale, community-based cluster randomised trial of a systems thinking approach for the prevention of childhood obesity among secondary school students 2014-2016.

Background: Healthy Together Victoria (HTV) was a Victorian Government initiative that sought to reduce the prevalence of overweight and obesity through targeting chronic disease risk factors including physical activity, poor diet quality, smoking, and harmful alcohol use. The intervention involved a boosted workforce of > 170 local-level staff in 12 communities; employed to deliver system activation around health and wellbeing for individuals, families and communities. A cluster randomised trial (CRT) of a systems thinking approach to obesity prevention was embedded within HTV.

National nutrition surveillance programmes in 18 countries in South-East Asia and Western Pacific Regions: a systematic scoping review.

Objective: To identify and analyse ongoing nutrition-related surveillance programmes led and/or funded by national authorities in countries in South-East Asian and Western Pacific Regions.

Methods: We systematically searched for publications in PubMed® and Scopus, manually searched the grey literature and consulted with national health and nutrition officials, with no restrictions on publication type or language. We included low- and middle-income countries in the World Health Organization South-East Asia Region, and the Association of Southeast Asian Nations and China.

New insights in the mechanisms of weight-loss maintenance: Summary from a Pennington symposium.

Obesity is a chronic disease that affects more than 650 million adults worldwide. Obesity not only is a significant health concern on its own, but predisposes to cardiometabolic comorbidities, including coronary heart disease, dyslipidemia, hypertension, type 2 diabetes, and some cancers. Lifestyle interventions effectively promote weight loss of 5% to 10%, and pharmacological and surgical interventions even more, with some novel approved drugs inducing up to an average of 25% weight loss.

Cultural adaptations and methodological innovations to group model building for the systems actions to reduce malnutrition in all its forms in Southeast Asian countries and China (SYSTAM CHINA-SEACS International Consortium) project.

Background: Group Model Building (GMB) is a participatory system dynamics method increasingly used to address complex public health issues like obesity. GMB represents a set of well-defined steps to engage key stakeholders to identify shared drivers and solutions of a given problem. However, GMB has not yet been applied specifically to develop multi-duty interventions that address multiple inter-related issues such as malnutrition in all its forms (MIAIF).

Comprehensive application of a systems approach to obesity prevention: a scoping review of empirical evidence.

A systems approach to obesity prevention is increasingly urged. However, confusion exists on what a systems approach entails in practice, and the empirical evidence on this new approach is unclear. This scoping review aimed to identify and synthesise studies/programmes that have comprehensively applied a systems approach to obesity prevention in intervention development, delivery/implementation, and evaluation.

Health, wellbeing and nutritional impacts after 2 years of free school meals in New Zealand.

In 2020, a government-funded healthy school lunch program was introduced in a quarter of New Zealand schools, selected due to high levels of socio-economic barriers. This study assesses the impact of the introduction of the school lunch program from family (whānau), student and school principal perspectives. Across four schools, we conducted five focus groups (two with secondary students and three with family members) and four school principal interviews.

Priority setting for non-communicable disease prevention - Co-producing a regulatory agenda informing novel codes of practice in Australia.

There are a range of priority setting methods for non-communicable disease (NCDs) prevention. However, existing methods are often designed without detailed consideration of local context and political economy- critical success factors for implementation. In Australia, codes of practice under state government Public Health Acts could be used for NCD prevention.

The bioelectrical impedance analysis (BIA) international database: aims, scope, and call for data.

Background: Bioelectrical impedance analysis (BIA) is a technique widely used for estimating body composition and health-related parameters. The technology is relatively simple, quick, and non-invasive, and is currently used globally in diverse settings, including private clinicians' offices, sports and health clubs, and hospitals, and across a spectrum of age, body weight, and disease states. BIA parameters can be used to estimate body composition (fat, fat-free mass, total-body water and its compartments).

The utilisation of legal instruments by United Nations actors to restrict the exposure of children to unhealthy food and beverage marketing: a qualitative content analysis of UN instruments.

Introduction: United Nations (UN) agencies are influential global health actors that can introduce legal instruments to call on Member States to act on pressing issues. This paper examines the deployment and strength of global health law instruments used by UN actors to call on Member States to restrict the exposure of children to unhealthy food and beverage marketing.

Methods: Global health law instruments were identified from a review of four UN agencies that have a mandate over children's exposure to marketing of unhealthy food and beverage products namely: the World Health Organization (WHO); the Food and Agriculture Organization (FAO); the United Nations General Assembly (UNGA) and the UN Office of the High Commissioner for Human Rights (OHCHR).

Caloric reductions needed to achieve obesity goals in Mexico for 2030 and 2040: A modeling study.

Background: In Mexico, obesity prevalence among adults increased from 23% in 2000 to 36% in 2018, approximately. Mexico has not defined short- or long-term obesity goals, obscuring the level of effort required to achieve a relevant impact. We aimed to explore potential obesity goals for 2030 and 2040 in Mexico and to estimate the required caloric reductions to achieve them.

Building Culturally Centered System Dynamics Logic Models for the Brown Buttabean Motivation Organization: Protocol for a Systems Science Approach.

Background: Brown Buttabean Motivation (BBM) is an organization providing support for Pacific people and Indigenous Māori to manage their weight, mainly through community-based exercise sessions and social support. It was started by DL, a man of Samoan and Māori descent, following his personal weight loss journey from a peak weight of 210 kg to less than half that amount. DL is a charismatic leader with a high media profile who is successful in soliciting donations from corporations in money and kindness.

Toward healthy and sustainable diets for the 21st century: Importance of sociocultural and economic considerations.

Four years after the EAT-Lancet landmark report, worldwide movements call for action to reorient food systems to healthy diets that respect planetary boundaries. Since dietary habits are inherently local and personal, any shift toward healthy and sustainable diets going against this identity will have an uphill road. Therefore, research should address the tension between the local and global nature of the biophysical (health, environment) and social dimensions (culture, economy).

Community coalition efforts to prevent childhood obesity: two-year results of the Shape Up Under 5 study.

Background: Cross-sector collaborations and coalitions are promising approaches for childhood obesity prevention, yet there is little empirical evidence about how they affect change. We hypothesized that changes in knowledge of, and engagement with, childhood obesity prevention among coalition members can diffuse through social networks to influence policies, systems, and environments.

Methods: We studied a community coalition (N = 16, Shape Up Under 5 "SUU5 Committee") focused on early childhood obesity prevention in Somerville, MA from 2015-17.

Reflexive Evidence and Systems interventions to Prevention Obesity and Non-communicable Disease (RESPOND): protocol and baseline outcomes for a stepped-wedge cluster-randomised prevention trial.

Introduction: Systems science methodologies have been used in attempts to address the complex and dynamic causes of childhood obesity with varied results. This paper presents a protocol for the Reflexive Evidence and Systems interventions to Prevention Obesity and Non-communicable Disease (RESPOND) trial. RESPOND represents a significant advance on previous approaches by identifying and operationalising a clear systems methodology and building skills and knowledge in the design and implementation of this approach among community stakeholders.

Process evaluation of in-person, news and social media engagement of a community-based programme Brown Buttabean Motivation (BBM): a research protocol.

Introduction: The community group Brown Buttabean Motivation (BBM) initially began to assist Auckland Pasifika and Māori to manage weight problems, predominantly through community-based exercise sessions and social support. BBM's activities expanded over time to include many other components of healthy living in response to community need. With advent of the COVID-19 pandemic, BBM outreach grew to include a foodbank distributing an increasing amount of donated healthy food to families in need, a community kitchen and influenza and COVID-19 vaccine drives.

Systems Mapping of the New Zealand Free and Healthy School Lunch Programme: Perspectives from Lunch Providers.

As part of the COVID-19 economic recovery package, the Aotearoa New Zealand Government rolled out a universal free and healthy lunch programme to the 25% least advantaged schools nationwide. This study explored experiences of school lunch providers in the Hawke's Bay region. The aim was to create a systems map identifying points of intervention through which the lunch programme could be improved to meet the goal of reducing child food insecurity.