Search

Summary Dietary intake during adolescence sets the foundation for a healthy life, but adolescents are diverse in their dietary patterns and in factors that influence food choice. More evidence to understand the key diet-related issues and the meaning and context of food choices for adolescents is needed to increase the potential for impactful actions. The aim of this second Series paper is to elevate the importance given to adolescent dietary intake and food choice, bringing a developmental perspective to inform policy and programmatic actions to improve diets. We describe patterns of dietary intake, then draw on existing literature to map how food choice can be influenced by unique features of adolescent development. Pooled qualitative data is then combined with evidence from the literature to explore ways in which adolescent development can interact with sociocultural context and the food environment to influence food choice. Irrespective of context, adolescents have a lot to say about why they eat what they eat, and insights into factors that might motivate them to change. Adolescents must be active partners in shaping local and global actions that support healthy eating patterns. Efforts to improve food environments and ultimately adolescent food choice should harness widely shared adolescent values beyond nutrition or health.

Background There are no national arrangements for free school meals provision in Norway despite this being an important opportunity to improve children's and adolescents' nutritional status and ultimately their physical and cognitive development. During a one academic year (2014-2015), a group of Norwegian sixth graders were served a free healthy school meal in a project called 'The School Meal Project'. Objective To explore students' and teachers' experiences of receiving free school meals after the free school meal in 2015 and 5 years later. Design In-depth, semi-structured interviews with separate groups in 2015 and in 2020 were conducted face to face or via telephone or digital platforms. The findings are based on 13 students (aged 12-16) and 5 teacher interviews. Findings Thematic analysis identified four main themes that describe the perceived benefits of receiving free school meals: 1) the meal as a social event where students made new friends and learned new skills; 2) as an aid to forming healthy eating habits; and as an opportunity to 3) improve school functioning and 4) increase social equality among students. Discussion Our analysis suggests that the free school meal may influence healthy behaviors not only at the individual level but also at the social-, physical-, and macro-levels. Methodological limitations, including self-selection bias, should be considered when interpreting our findings. Conclusion This study provides unique insights into the social benefits for students of receiving free school meals. Our findings illustrate the potential of free school meals: eating healthy foods, sharing a meal together, and interaction between students and teachers at mealtime, to promote health, learning, and equality. In order to maximize these benefits through national implementation of free school meals, more understanding is needed of possible facilitators and barriers related to the provision and uptake of free school meals.

IntroductionThe first 1000 days of life are a critical period of growth and development that have lasting implications for health, cognitive, educational and economic outcomes. In sub-Saharan Africa, gender and social norms are such that many men have little engagement with maternal and child health and nutrition during pregnancy and early childhood. This study explores how men perceive their role in three sites in sub-Saharan Africa.MethodsSecondary qualitative analysis of 10 focus group discussions with 76 men in Burkina Faso, Ghana and South Africa. Data were thematically analysed to explore men’s perceptions of maternal and child health and nutrition.ResultsMen considered themselves ‘providers’ and 'advisors' within their families, particularly of finances, food and medicines. They also indicated that this advice was out of care and concern for their families’ health. There were similarities in how the men perceive their role. Differences between men living in rural and urban settings included health priorities, the advice and the manner in which it was provided. Across all settings, men wanted to be more involved with maternal and child health and nutrition. Challenges to doing so included stigma and proscribed social gender roles.ConclusionMen want a greater engagement in improving maternal and child health and nutrition but felt that their ability to do so was limited by culture-specified gender roles, which are more focused on providing for and advising their families. Involving both men and women in intervention development alongside policymakers, health professionals and researchers is needed to improve maternal and child health and nutrition.

Background To reduce COVID-19 infection rates during the initial stages of the pandemic, the UK Government mandated a strict period of restriction on freedom of movement or ‘lockdown’. For young people, closure of schools and higher education institutions and social distancing rules may have been particularly challenging, coming at a critical time in their lives for social and emotional development. This study explored young people’s experiences of the UK Government’s initial response to the pandemic and related government messaging. Methods This qualitative study combines data from research groups at the University of Southampton, University of Edinburgh and University College London. Thirty-six online focus group discussions (FGDs) were conducted with 150 young people (Southampton: n = 69; FGD = 7; Edinburgh: n = 41; FGD = 5; UCL: n = 40; FGD = 24). Thematic analysis was conducted to explore how young people viewed the government’s response and messaging and to develop recommendations for how to best involve young people in addressing similar crises in the future. Results The abrupt onset of lockdown left young people shocked, confused and feeling ignored by government and media messaging. Despite this, they were motivated to adhere to government advice by the hope that life might soon return to normal. They felt a responsibility to help with the pandemic response, and wanted to be productive with their time, but saw few opportunities to volunteer. Conclusions Young people want to be listened to and feel they have a part to play in responding to a national crisis such as the COVID-19 epidemic. To reduce the likelihood of disenfranchising the next generation, Government and the media should focus on developing messaging that reflects young people’s values and concerns and to provide opportunities for young people to become involved in responses to future crises.

Objective:To carry out a qualitative evidence synthesis to explore what influences the diet and physical activity of adolescents living in five countries that constitute the Transforming Adolescent Lives through Nutrition (TALENT) consortium (Cote D’Ivoire, Ethiopia, India, South Africa and The Gambia).Design:A search of electronic databases was conducted for qualitative articles published between 2000 and 2019.Participants:Studies that explore influences on the diets and physical activity habits of adolescents aged 10–19 years.Results:Of the twelve included studies, none were identified from The Gambia or Cote D’Ivoire. The existing qualitative literature focussed on three major areas in relation to adolescents’ diet and physical activity: (1) the influence of body image and self-esteem; (2) social and environmental influences and (3) poverty. The limited existing literature focusses heavily on girls’ experiences particularly in relation to body image and dysfunctional eating practices.Conclusions:In-depth research exploring adolescents’ perceptions of diet and physical activity is needed to better understand how both boys and girls, at different stages of adolescence, perceive health, diet and physical activity. More research with young people is required especially in countries where little exists to cover a wider range of issues that play a role in diet and physical activity.

Objective:To: (i) understand facilitators and barriers to healthy eating practices and physical activity in younger and older urban adolescent South African boys and girls; and (ii) understand how the views of caregivers interact with, and influence, adolescent behaviours.Design:Semi-structured focus group discussions (FGD) were conducted in July 2018. Data were analysed using thematic analysis.Setting:Soweto, Johannesburg, South Africa.Participants:Seventy-five participants were stratified into eight FGD as follows: two for young boys and girls (10–12 years); two for older boys and girls (15–17 years); two for caregivers of young adolescents (boys and girls); and two for caregivers of older adolescents (boys and girls).Results:Unlike their caregivers, adolescents were not motivated to eat healthily and failed to appreciate the need to develop consistent patterns of both healthy eating and physical activity for their long-term health. Although adolescents gained independence with age, they commonly attributed unhealthy food choices to a lack of autonomy and, thereby, to the influence of their caregivers. Adolescents and caregivers perceived their engagement in physical activity according to distinct siloes of recreational and routine activity, respectively. Both similarities and differences in the drivers of healthy eating and physical activity exist in adolescents and caregivers, and should be targeted in future interventions.Conclusions:Our study identified a complex paradigm of eating practices and physical activity in South African adolescents and their caregivers. We also highlighted the need for a new narrative in addressing the multifaceted and interrelated determinants of adolescent health within urban poor settings.

BackgroundAdolescents are increasingly susceptible to obesity, and thus at risk of later non-communicable diseases, due to changes in food choices, physical activity levels and exposure to an obesogenic environment. This review aimed to synthesize the literature investigating the effectiveness of health education interventions delivered in school settings to prevent overweight and obesity and/ or reduce BMI in adolescents, and to explore the key features of effectiveness.MethodsA systematic search of electronic databases including MEDLINE, CINAHL, PsychINFO and ERIC for papers published from Jan 2006 was carried out in 2020, following PRISMA guidelines. Studies that evaluated health education interventions in 10–19-year-olds delivered in schools in high-income countries, with a control group and reported BMI/BMI z-score were selected. Three researchers screened titles and abstracts, conducted data extraction and assessed quality of the full text publications. A third of the papers from each set were cross-checked by another reviewer. A meta-analysis of a sub-set of studies was conducted for BMI z-score.ResultsThirty-three interventions based on 39 publications were included in the review. Most studies evaluated multi-component interventions using health education to improve behaviours related to diet, physical activity and body composition measures. Fourteen interventions were associated with reduced BMI/BMI z-score. Most interventions (n = 22) were delivered by teachers in classroom settings, 19 of which trained teachers before the intervention. The multi-component interventions (n = 26) included strategies such as environment modifications (n = 10), digital interventions (n = 15) and parent involvement (n = 16). Fourteen studies had a low risk of bias, followed by 10 with medium and nine with a high risk of bias. Fourteen studies were included in a random-effects meta-analysis for BMI z-score. The pooled estimate of this meta-analysis showed a small difference between intervention and control in change in BMI z-score (− 0.06 [95% CI -0.10, − 0.03]). A funnel plot indicated that some degree of publication bias was operating, and hence the effect size might be inflated.ConclusionsFindings from our review suggest that school-based health education interventions have the public health potential to lower BMI towards a healthier range in adolescents. Multi-component interventions involving key stakeholders such as teachers and parents and digital components are a promising strategy.

Objective:Adolescent diet, physical activity and nutritional status are generally known to be sub-optimal. This is an introduction to a special issue of papers devoted to exploring factors affecting diet and physical activity in adolescents, including food insecure and vulnerable groups.SettingEight settings including urban, peri-urban and rural across sites from five different low- and middle-income countries.Design:Focus groups with adolescents and caregivers carried out by trained researchers.Results:Our results show that adolescents, even in poor settings, know about healthy diet and lifestyles. They want to have energy, feel happy, look good and live longer, but their desire for autonomy, a need to ‘belong’ in their peer group, plus vulnerability to marketing exploiting their aspirations, leads them to make unhealthy choices. They describe significant gender, culture and context-specific barriers. For example, urban adolescents had easy access to energy dense, unhealthy foods bought outside the home, whereas junk foods were only beginning to permeate rural sites. Among adolescents in Indian sites, pressure to excel in exams meant that academic studies were squeezing out physical activity time.Conclusions:Interventions to improve adolescents’ diets and physical activity levels must therefore address structural and environmental issues and influences in their homes and schools, since it is clear that their food and activity choices are the product of an interacting complex of factors. In the next phase of work, the Transforming Adolescent Lives through Nutrition consortium will employ groups of adolescents, caregivers and local stakeholders in each site to develop interventions to improve adolescent nutritional status.

Objective:To explore perceptions of how context shapes adolescent diet and physical activity in eight low- and middle-income (LMIC) sites at different stages of societal and economic transition.Design:Novel qualitative secondary analysis of eight data sets generated as part of the international Transforming Adolescent Lives through Nutrition (TALENT) collaboration.Setting:Diverse sites in India and Sub-Saharan Africa.Participants:Fifty-two focus group discussions with 491 participants (303 adolescents aged 10–17 years; 188 caregivers).Results:Analysis of pooled qualitative data identified three themes: (1) transitions in generational nutrition education and knowledge; (2) transition in caregiver–adolescent power balance and (3) the implications of societal and economic transition for diet and physical activity. Adolescents in urban and peri-urban areas could readily access ‘junk’ food. Diets in rural settings were determined by tradition, seasonality and affordability. Physical activity was inhibited by site-specific factors including lack of space and crime in urban settings, and the prioritisation of academic performance. Gender influenced physical activity across all sites, with girls afforded fewer opportunities.Conclusions:Interventions to improve adolescent diet and physical activity in LMIC need to be complex, context-specific and responsive to transitions at the individual, economic and societal levels. Moreover, solutions need to acknowledge gender inequalities in different contexts, as well as structural and cultural influences on diet and physical activity in resource-limited settings. Programmes need to be effective in engaging and reconciling adolescents’ and caregivers’ perspectives. Consequently, there is a need for action at both the community-household level and also through policy.

Objective:To explore the perceptions of adolescents and their caregivers on drivers of diet and physical activity in rural India in the context of ongoing economic, social and nutrition transition.Design:A qualitative study comprising eight focus group discussions (FGD) on factors affecting eating and physical activity patterns, perceptions of health and decision-making on food preparation.Setting:Villages approximately 40–60 km from the city of Pune in the state of Maharashtra, India.Participants:Two FGD with adolescents aged 10–12 years (n 20), two with 15- to 17- year-olds (n 18) and four with their mothers (n 38).Results:Dietary behaviour and physical activity of adolescents were perceived to be influenced by individual and interpersonal factors including adolescent autonomy, parental influence and negotiations between adolescents and caregivers. The home food environment, street food availability, household food security and exposure to television and digital media were described as influencing behaviour. The lack of facilities and infrastructure was regarded as barriers to physical activity as were insufficient resources for public transport, safe routes for walking and need for cycles, particularly for girls. It was suggested that schools take a lead role in providing healthy foods and that governments invest in facilities for physical activity.Conclusions:In this transitioning environment, that is representative of many parts of India and other Lower Middle Income Countries (LMIC), people perceive a need for interventions to improve adolescent diet and physical activity. Caregivers clearly felt that they had a stake in adolescent health, and so we would recommend the involvement of both adolescents and caregivers in intervention design.

Objective:To explore, from the perspectives of adolescents and caregivers, and using qualitative methods, influences on adolescent diet and physical activity in rural Gambia.Design:Six focus group discussions (FGD) with adolescents and caregivers were conducted. Thematic analysis was employed across the data set.Setting:Rural region of The Gambia, West Africa.Participants:Participants were selected using purposive sampling. Four FGD, conducted with forty adolescents, comprised: girls aged 10–12 years; boys aged 10–12 years; girls aged 15–17 years, boys aged 15–17 years. Twenty caregivers also participated in two FGD (mothers and fathers).Results:All participants expressed an understanding of the association between salt and hypertension, sugary foods and diabetes, and dental health. Adolescents and caregivers suggested that adolescent nutrition and health were shaped by economic, social and cultural factors and the local environment. Adolescent diet was thought to be influenced by: affordability, seasonality and the receipt of remittances; gender norms, including differences in opportunities afforded to girls, and mother-led decision-making; cultural ceremonies and school holidays. Adolescent physical activity included walking or cycling to school, playing football and farming. Participants felt adolescent engagement in physical activity was influenced by gender, seasonality, cultural ceremonies and, to some extent, the availability of digital media.Conclusions:These novel insights into local understanding should be considered when formulating future interventions. Interventions need to address these interrelated factors, including misconceptions regarding diet and physical activity that may be harmful to health.

Objective:To describe the anthropometry, socioeconomic circumstances, diet and screen time usage of adolescents in India and Africa as context to a qualitative study of barriers to healthy eating and activity.Design:Cross-sectional survey, including measured height and weight and derived rates of stunting, low BMI, overweight and obesity. Parental schooling and employment status, household assets and amenities, and adolescents’ dietary diversity, intake of snack foods, mobile/smartphone ownership and TV/computer time were obtained via a questionnaire.Setting:Four settings each in Africa (rural villages, West Kiang, The Gambia; low-income urban communities, Abidjan, Cote D’Ivoire; low/middle-class urban communities, Jimma, Ethiopia; low-income township, Johannesburg, South Africa) and India (rural villages, Dervan; semi-rural villages, Pune; city slums, Mumbai; low-middle/middle-class urban communities, Mysore).Participants:Convenience samples (n 41–112 per site) of boys and girls, half aged 10–12 years and another half aged 15–17 years, were recruited for a qualitative study.Results:Both undernutrition (stunting and/or low BMI) and overweight/obesity were present in all settings. Rural settings had the most undernutrition, least overweight/obesity and greatest diet diversity. Urban Johannesburg (27 %) and Abidjan (16 %), and semi-rural Pune (16 %) had the most overweight/obesity. In all settings, adolescents reported low intakes of micronutrient-rich fruits and vegetables, and substantial intakes of salted snacks, cakes/biscuits, sweets and fizzy drinks. Smartphone ownership ranged from 5 % (West Kiang) to 69 % (Johannesburg), higher among older adolescents.Conclusions:The ‘double burden of malnutrition’ is present in all TALENT settings. Greater urban transition is associated with less undernutrition, more overweight/obesity, less diet diversity and higher intakes of unhealthy/snack foods.

Objective:To explore influences on adolescent diet and physical activity, from the perspectives of adolescents and their caregivers, in Jimma, Ethiopia.Design:Qualitative design, using focus group discussions (FGD).Setting:A low-income setting in Jimma, Ethiopia.Participants:Five FGD with adolescents aged 10–12 years and 15–17 years (n 41) and three FGD with parents (n 22) were conducted.Results:Adolescents displayed a holistic understanding of health comprising physical, social and psychological well-being. Social and cultural factors were perceived to be the main drivers of adolescent diet and physical activity. All participants indicated that caregivers dictated adolescents’ diet, as families shared food from the same plate. Meals were primarily determined by caregivers, whose choices were driven by food affordability and accessibility. Older adolescents, particularly boys, had opportunities to make independent food choices outside of the home which were driven by taste and appearance, rather than nutritional value. Many felt that adolescent physical activity was heavily influenced by gender. Girls’ activities included domestic work and family responsibilities, whereas boys had more free time to participate in outdoor games. Girls’ safety was reported to be a concern to caregivers, who were fearful of permitting their daughters to share overcrowded outdoor spaces with strangers.Conclusions:Adolescents and caregivers spoke a range of social, economic and cultural influences on adolescent diet and physical activity. Adolescents, parents and the wider community need to be involved in the development and delivery of effective interventions that will take into consideration these social, economic and cultural factors.

Systematic reviews and meta-analyses suggest that behaviour change interventions have modest effect sizes, struggle to demonstrate effect in the long term and that there is high heterogeneity between studies. Such interventions take huge effort to design and run for relatively small returns in terms of changes to behaviour.So why do behaviour change interventions not work and how can we make them more effective? This article offers some ideas about what may underpin the failure of behaviour change interventions. We propose three main reasons that may explain why our current methods of conducting behaviour change interventions struggle to achieve the changes we expect: 1) our current model for testing the efficacy or effectiveness of interventions tends to a mean effect size. This ignores individual differences in response to interventions; 2) our interventions tend to assume that everyone values health in the way we do as health professionals; and 3) the great majority of our interventions focus on addressing cognitions as mechanisms of change. We appeal to people’s logic and rationality rather than recognising that much of what we do and how we behave, including our health behaviours, is governed as much by how we feel and how engaged we are emotionally as it is with what we plan and intend to do.Drawing on our team’s experience of developing multiple interventions to promote and support health behaviour change with a variety of populations in different global contexts, this article explores strategies with potential to address these issues.

Objective:To explore adolescents’ perceptions, knowledge and behaviours regarding nutrition and physical activity in low-income districts of Abidjan, Côte d’Ivoire, taking into consideration their caregivers’ perspectives.Design:Two investigators conducted six focus group discussions.Setting:The study was carried out in two low-income suburbs, Yopougon and Port-Bouët, in Abidjan, Côte d’Ivoire.Participants:Adolescents and their caregivers were recruited into the study via local head teachers and heads of settlement.Results:Overall, seventy-two participants, including forty-six adolescents and twenty-six caregivers, took part. Participants demonstrated good nutrition knowledge, relating nutritional health to a balanced diet and hygiene. Sustained physical activity was reported. However, adopting good practices was challenging due to participant’s economic circumstances. Their environment was a barrier to improving health due to dirtiness and violence, with a lack of space limiting the possibility to practice sport. Adolescents and their caregivers differed in their response to these constraints. Many caregivers felt powerless and suggested that a political response was the solution. Alternatively, adolescents were more likely to suggest new creative solutions such as youth-friendly centres within their community.Conclusions:Participants were aware that their nutritional habits were not in line with what they had learnt to be good nutritional practices due to socio-economic constraints. Physical activity was part of adolescent life, but opportunities to exercise were restricted by their environment. Strategies for improving adolescent health in these settings need to be developed in collaboration with adolescents in a manner that accommodates their opinions and solutions.

Objective:To explore, adolescents’ and caregivers’ perspectives, about shaping of diet and physical activity habits in rural Konkan, India.Design:Five focus group discussions (FGD) were conducted with adolescents and two with caregivers. Data were analysed using thematic analysis.Setting:FGD were conducted in secondary schools located in remote rural villages in the Ratnagiri district, Konkan region, Maharashtra, India.Participants:Forty-eight adolescents were recruited including twenty younger (10–12 years) and twenty-eight older (15–17 years) adolescents. Sixteen caregivers (all mothers) were also recruited.Results:Three themes emerged from discussion: (i) adolescents’ and caregivers’ perceptions of the barriers to healthy diet and physical activity, (ii) acceptance of the status quo and (iii) salience of social and economic transition. Adolescents’ basic dietary and physical activity needs were rarely met by the resources available and infrastructure of the villages. There were few opportunities for physical activity, other than performing household chores and walking long distances to school. Adolescents and their caregivers accepted these limitations and their inability to change them. Increased use of digital media and availability of junk foods marked the beginning of a social and economic transition.Conclusion:FGD with adolescents and their caregivers provided insights into factors influencing adolescent diet and physical activity in rural India. Scarcity of basic resources limited adolescent diet and opportunities for physical activity. To achieve current nutritional and physical activity recommendations for adolescents requires improved infrastructure in these settings, changes which may accompany the current Indian social and economic transition.

Background Adolescence is an important transitional period in which major physical, psychological and cognitive changes occur. Lifestyle habits during this time, particularly related to dietary behaviour and physical activity, strongly influence overall health and non-communicable disease risk in adulthood. There are gaps in knowledge about the determinants of food choices and physical activity habits of adolescents in low and middle income countries. Objectives To identify factors which influence the food choices and physical activity habits of adolescents in the South Indian city of Mysore, India. Methods Six focus group discussions were conducted in selected urban neighbourhoods of Mysore. Thirty volunteers were recruited by purposive sampling method to include younger (10-12 years old, n=12) and older (15-17 years old, n=12) adolescents, and caregivers of adolescents (n=6). The focus group discussions were conducted by investigators who were native to the region Results Despite revealing a propensity for consuming fast foods, adolescents ate home cooked meals regularly, and both young people and their parents were satisfied with the quality of the adolescents’ diets. Also, all participant groups reported that adolescents regularly played and enjoyed games and sports, and did household chores as part of their physical activity. However, the pressure of schoolwork and the increasing amounts of time spent on digital devices including mobile phones were major constraints to being active. Conclusions Adolescents and caregivers perceive that Mysore adolescents’ dietary habits remain satisfactory. Academic study was found to be the priority in adolescents’ lives. This is recognized and accepted both socially and culturally as the right choice by parents and young people alike. Therefore, not much time or effort is spent on being active. A contradiction is that although time is considered to be a scarce commodity that necessitates careful partitioning, any surplus time is preferentially spent in playing digital games and interacting on social media. Interventions are needed to increase the amount of physical activity undertaken by Mysore adolescents.

Adolescence offers a window of opportunity during which improvements in health behaviours could benefit long-term health, and enable preparation for parenthood—albeit a long way off, passing on good health prospects to future children. This study was carried out to evaluate whether an educational intervention, which engages adolescents in science, can improve their health literacy and behaviours. A cluster-randomised controlled trial of 38 secondary schools in England, UK was conducted. The intervention (LifeLab) drew on principles of education, psychology and public health to engage students with science for health literacy, focused on the message “Me, my health and my children’s health”. The programme comprised: • Professional development for teachers. • A 2–3 week module of work for 13-14-year-olds. • A “hands-on” practical health science day visit to a dedicated facility in a university teaching hospital. Data were collected from 2929 adolescents (aged 13–14 years) at baseline and 2487 (84.9%) at 12-month follow-up. The primary outcome was change in theoretical health literacy from pre- to 12 months post- intervention. This study is registered (ISRCTN71951436) and the trial status is complete. Participation in the LifeLab educational intervention was associated with an increase in the students’ standardised total theoretical health literacy score (adjusted difference between groups = 0.27 SDs (95%CI = 0.12, 0.42)) at 12-month follow-up. There was an indication that intervention participants subsequently judged their own lifestyles more critically than controls, with fewer reporting their behaviours as healthy (53.4% vs. 59.5%; adjusted PRR = 0.94 [0.87, 1.01]). We conclude that experiencing LifeLab led to improved health literacy in adolescents and that they demonstrated a move towards a more critical judgement of health behaviour 12 months after the intervention. Further work is needed to examine whether this leads to sustained behaviour change, and whether other activities are needed to support this change.