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Background: Prevention of obesity is economically and sociologically preferable to treatment, with early intervention key to preventing excess weight gain and obesity. The transition from adolescence to young adulthood is a critical intervention period. An expert-led, top-down model has dominated obesity prevention research and practice with limited success. Participatory design (PD) offers potential in transforming obesity prevention research and practice by delivering bottom-up solutions that young people value and may therefore voluntarily engage with over time. An evidence synthesis of PD application in obesity prevention targeting adolescents and young adults is currently lacking. Objectives: Report the protocol for a mixed-methods systematic scoping review which aims to integrate and synthesise available evidence on PD application in obesity prevention targeting adolescents and young adults. Specifically, the review will address three research questions: RQ1: How is PD defined in obesity prevention interventions targeting adolescents and young adults? RQ2: To what extent is PD applied in obesity preventions interventions targeting adolescents and young adults? RQ3a: How is the utility of PD evaluated in obesity preventions interventions targeting adolescents and young adults? RQ3b: What is the utility of PD application in obesity prevention interventions targeting adolescents and young adults? Methods: This mixed-methods systematic scoping review protocol adheres to the PRISMA-P guidelines and is informed by the PRISMA extension for scoping reviews (PRISMA-ScR). The search strategy and eligibility criteria are informed by the sample, phenomenon of interest, design, evaluation, and research type tool. Eligible studies will be peer-reviewed literature published in English, reporting on PD application in obesity prevention interventions (including intervention development, implementation, and/or evaluation) targeting adolescents and young adults (aged 10–35 years). Study designs will include qualitative, quantitative, and mixed methods. The review will comprise a systematic literature search, eligibility screening, data extraction, quality assessment using the Mixed-Methods Appraisal Tool (MMAT), and data analysis using an iterative narrative evidence synthesis approach. Evidence on PD application will be thematically integrated in terms of who was involved, when they were involved, and how and why they were involved. Further thematic analyses will be conducted according to the MATE taxonomy and the United Kingdom Medical Research Council (UK MRC's) key functions of process evaluations. The MATE taxonomy classifies PD application in terms of methodology, agent of change, training, and engagement. The MRC describes three functions of process evaluations: implementation, mechanisms of impact, and context. Applying both in the evidence synthesis is intended to provide a more complete picture of PD application. Exploratory analyses will be conducted to assess any potential associations between PD application and effectiveness across key outcomes (weight, physical activity, sedentary time, nutrition and dietary habit, mental health, and sleep) reported within intervention evaluations. Conclusions: Elucidating PD application is a prerequisite to establishing its utility. Through the location and synthesis of available evidence on PD application in obesity prevention targeting adolescents and young adults, this review will categorise and describe different methods of PD application and explore the utility of PD application including whether any differences may be observed between PD method applied and the effectiveness of obesity prevention interventions. Implications will be delineated from the narrative evidence synthesis to inform future research and advance practice in this context. Systematic review registration: PROSPERO CRD42021268240 [ABSTRACT FROM AUTHOR]

Obesity and diet-related health problems are complex, multi-factorial issues. Individual food choices are shaped by the wider context, and food environment level change is needed to support individual behaviour change. The food service sector can play an integral role, changing aspects of the food environment and contributing to improved consumer health. This systematic review aimed to analyse food service schemes that aimed to improve consumer health. Ten electronic databases were systematically searched to identify articles, supplemented with checking of reference lists from similar reviews and forward and backward searches to identify articles describing food service sector schemes. Sixteen schemes were identified, documented in 36 articles/reports. The schemes aimed to improve consumer health through one of three approaches— informing , enabling or engineering. In this order, these approaches involved increasing levels of effort from food services, corresponding with decreasing levels of effort for consumers. Half the schemes were informing , relying on an informed consumer to make a healthy choice. Most informing schemes had been evaluated to determine their impact on consumer choice and/or health, the evidence showed these schemes were generally ineffective. The effect of the enabling or engineering schemes on consumer choice and health had not been measured. Instead, evaluations focussed on process or business engagement rather than behavioural change assessments. This review indicates the food sector has the potential to contribute to consumer health through enabling and engineering ; however, detailed outcome assessments are needed to draw definitive conclusions. [ABSTRACT FROM AUTHOR]

Objective: Regular breakfast skipping is related to unhealthy dietary behaviours, such as consuming an overall poorer quality diet and lower rates of physical activity, both of which are linked to a higher BMI. Adolescent breakfast skippers struggle with mental focus, sleep issues and lower grades. Solutions that can be implemented to overcome breakfast skipping are needed.Design: A systematic literature review was undertaken to identify programmes that aimed to increase breakfast eating. Following the PRISMA framework, studies were sourced to examine details of behaviour change, evidence of theory use and other important programme learnings and outcomes.Setting: Breakfast consumption empirical studies published from 2000 onwards.Participants: Nineteen empirical studies that aimed to improve breakfast eating behaviour.Results: Out of the nineteen studies examined, ten studies reported an increase in breakfast consumption frequency for the entire study group or subgroups. Seven studies found no change, one was inconclusive and one observed a decrease in breakfast frequency. Positive changes to the dietary quality of breakfast were observed in five of the studies that did not observe increased frequency of breakfast consumption. Only six studies reported using theory in the intervention.Conclusions: This evidence review points needed to extend theory application to establish a reliable evidence base that can be followed by practitioners seeking to increase breakfast eating rates in their target population. [ABSTRACT FROM AUTHOR]

ObjectiveThe present study sought to identify both the ingredients for success and the potential impediments to social marketing effectiveness for healthy eating behaviour, focusing on studies conducted over the last 10 years.DesignA comprehensive literature review was undertaken examining seventeen databases to identify studies reporting the use of social marketing to address healthy eating. Thirty-four empirical studies were analysed to examine the effectiveness of social marketing interventions to improve healthy eating behaviour using Andreasen's (2002) social marketing benchmark criteria. Statistical analysis was undertaken to quantitatively evaluate whether effectiveness varied between study categories (subsets).SettingHealthy eating empirical studies published from 2000 onwards.SubjectsEmpirical studies that self-identified as social marketing.ResultsSixteen social marketing studies (subset 1) were identified in the review. These were systematic studies which sought to change behaviour through tailored solutions (e.g. use of marketing tools beyond communication was clearly evident) that delivered value to the target audience. For these sixteen studies, the mean number of criteria identified was five. Six studies met all six criteria. Positive change to healthy eating behaviour was found in fourteen of sixteen studies. The sixteen studies that met the definition of social marketing used significantly more of Andreasen's (2002) criteria and were more effective in achieving behavioural change than the eighteen studies in subset 2.ConclusionsSocial marketing is an involved process and it is important that studies identifying as social marketing adopt social marketing benchmark criteria. Social marketing when employed to its full extent offers the potential to change healthy eating. [ABSTRACT FROM PUBLISHER]

This paper investigates eating behaviours and motivations of early career military trainees from two pathways (officer cadets and army recruits) to understand whether, and to what extent, healthful eating behaviours were present, and what motivates eating in general and healthful habits specifically. The study also sought to understand whether groups need strategies that are pathway specific or are transferrable across different trainee populations. Participants were recruited via email to complete an online survey and through in-person invitations to ensure a diverse cross section of trainees (n = 195) and recruits (n = 297). Two-step cluster analysis revealed three distinct segments with education, opportunity and motivation being the most important variables within a wider multivariate segment formation and stepwise linear regression was performed to identify the most optimal model with the least number of predictors for each segment. The ideal model for the uninterested segment contained nine predictors, seven predictors for the Breakfast skippers segment and eight predictors for the Weight conscious segment. This study found that there is room for improvement in the eating habits of military trainees across military training pathways. Eating motivations, and their associations with healthful eating habits, indicate a need for strategies that are broader than instilling or reinforcing health motivations. Strategies that can be implemented to support healthful eating for military trainees include provision of food preparation and cooking skills training, coupled with provision of social support and environments that facilitate healthful eating. Furthermore, three distinct segments were discovered within the trainee population, indicating that strategies for positively changing trainees' eating behaviours may not need to be pathway specific, rather it may be possible to introduce the same group of segmented strategies across both pathways. Future research directions and limitations are outlined. [ABSTRACT FROM AUTHOR]