My feed is what I eat? A qualitative study on adolescents' awareness and appreciation of food marketing on social media.

BACKGROUND: Adolescents spend much of their time online and hence are exposed to a lot of non-core (energy-dense, nutrient-poor) social media food marketing (SMFM). This may influence their dietary choices and health. This present study aimed to investigate adolescents' perceptions towards SMFM; that is, their recognition and appreciation of SMFM. METHODS: Semi-structured one-on-one interviews were conducted with Dutch adolescents aged 13-16 years (n = 16), on Skype. Examples of food promotions on Instagram, Snapchat, TikTok and YouTube were discussed with adolescents. RESULTS: Adolescents' reasons for recognising and appreciating or liking SMFM were often related to the level of product integration. Factors that determined participants' recognition of SMFM included product focus (e.g., brand or product prominence), sponsorship disclosure, type of content (paid, influencer and peer-generated content) and promotional strategy (e.g., discounts, promotional texts, layout). Participants' appreciation of SMFM was determined by the format of a post (image, video, text, pop-up), trustworthiness of the source (brand, celebrity, friend/peer), type of product promoted (core, non-core) and appearance or layout of a post (e.g., professionalism, appeal). CONCLUSIONS: The present study contributes to the ongoing debate on how to increase adolescents' resilience to commercial messages that promote non-core foods. Adolescents mostly enjoy watching non-core video content from peers or influencers and do not perceive this as food marketing. It is recommended that future studies investigate the effects of earned social media marketing formats (i.e., unpaid peer and influencer endorsements) promoting non-core foods on adolescents' dietary intake, and how they can be made more critical towards such types of SMFM.

Happy Little Vegemites™! An analysis of the contribution of yeast extract spreads and tomato-based sauces to nutrient intake adequacy in Australia.

BACKGROUND: Yeast extract spreads and tomato-based sauces (i.e., ketchup) are consumed regularly by the Australian population. Therefore, there is a need to explore the contribution of these condiments to nutrient intakes among Australians. METHODS: The present study comprises a secondary analysis of data from the 2011-2012 Australian National Nutrition and Physical Activity Survey. Dietary intake data were undertaken for 12,153 Australians aged ≥ 2 years, using 24-h recalls. Yeast extract spreads and tomato-based sauces were categorised based on how they were defined in the Australian Food and Nutrient (AUSNUT) 2011-2013 database. Kruskal-Wallis H tests and the post-hoc Dunn's test with Bonferroni correction were applied to test whether a significant difference existed in the percentage contribution of yeast extract spreads and tomato-based sauces to intakes of select nutrients. RESULTS: In total, 19.6% (n = 2384) of the population sample consumed yeast extract spreads and/or tomato-based sauces during the 24-h recall. The percentage contribution of yeast extract spreads to daily intakes of sodium, potassium, thiamine, riboflavin, niacin, folate, magnesium, iron, zinc and iodine were significantly higher in line with a greater quantity of yeast extract spread consumed (p < 0.05). The percentage contribution of tomato-based sauces to daily intakes of sodium, potassium, riboflavin, niacin, folate, beta-carotene, magnesium, iron, zinc and iodine was increased significantly with a greater quantity of tomato-based sauces consumed (p < 0.05). CONCLUSIONS: Consumption of yeast extracts and tomato-based sauces contribute to greater intake of key nutrients, such as B-vitamins and beta-carotene, and may assist in meeting key nutrient reference values. However, consumption of these sauces and condiments also resulted in greater intakes of sodium, contributing to population intakes exceeding recommendations. Reducing sodium content of frequently consumed condiments may potentially assist in lowering population intakes, at the same time as preserving intakes of other important nutrients.

Changing the default order of food items in an online grocery store may nudge healthier food choices.

Restructuring food environments, such as online grocery stores, has the potential to improve consumer health by encouraging healthier food choices. The aim of this study was to investigate whether repositioning foods within an experimental online grocery store can be used to nudge healthier choices. Specifically, we investigated whether repositioning product categories displayed on the website main page, and repositioning individual products within those categories, will influence selection. Adults residing in Australia (n = 175) were randomised to either intervention (high-fibre foods on top) or comparator condition (high-fibre foods on the bottom). Participants completed a shopping task using the experimental online grocery store, with a budget of up to AU$100 to for one person's weekly groceries. The results of this study show that the total fibre content per 100 kcal per cart (p < .001) and total fibre content per cart (p = .036) was higher in the intervention compared to comparator condition. Moreover, no statistical difference between conditions was found for the total number of fibre-source foods (p = .67), the total energy per cart (p = .17), and the total grocery price per cart (p = .70) indicating no evidence of implications for affordability. Approximately half of the participants (48%) reported that they would like to have the option to sort foods based on a specific nutrient criterion when shopping online. This study specifically showed that presenting higher-fibre products and product categories higher up on the online grocery store can increase the fibre content of customers' purchases. These findings have important implications for consumers, digital platform operators, researchers in health and food domains, and for policy makers.

Salt-Taste Polymorphism TRPV1-rs8065080 Is Associated with Increased Likelihood of Depression in an Elderly Cohort.

INTRODUCTION: Despite the prevalence of depression and anxiety worldwide, their aetiologies remain unclear, and they can be difficult to diagnose and treat. Changes in salt-taste perception have been found in both conditions. Single-nucleotide polymorphisms (SNPs) in the salt-taste-related gene, TRPV1, have been associated with alterations to salt-taste perception, preference, and sodium consumption. Diet quality is a known modifier of depression and anxiety and recently, sodium intake has been studied in mental health. However, the relationships between salt-taste genetics, depression, anxiety, and these dietary factors are yet to be elucidated. METHODS: Data from the well-characterized cross-sectional Retirement Health and Lifestyle Study (n = 536, ≥65 y) were used to explore the relationships between the salt-taste SNP TRPV1-rs8065080, levels of depression and anxiety (Hospital Anxiety and Depression Scale, HADS), estimated sodium intake, and diet quality in this secondary analysis. Standard least-squares regression and nominal logistic regression modelling were used to compare continuous and categorical variables, respectively, with analyses stratified by sex. RESULTS: Presence of the TRPV1-rs8065080 variant allele (C) was found to increase the likelihood of having depression (HADS) in the total population and in males. The associations remained significant after adjusting for sodium intake, three diet quality indices, and demographic variables, suggesting that TRPV1-rs8065080 genotype is driving the association with depression. DISCUSSION/CONCLUSION: Future studies should explore extra-oral functions of the SNP and salt-taste receptors in the brain and the roles of neurotransmitters common to both depression and salt taste to improve the management of this increasingly prevalent and difficult-to-treat condition.

Liking of salt is associated with depression, anxiety, and stress.

Early research has shown variations in salt taste qualities in depression, anxiety, and stress. These studies evaluated changes to salt taste intensity and liking (pleasantness) of salt solutions but not of salty foods. Therefore, an Australian population survey (n = 424) was conducted where participants rated recalled intensity and liking of salt index foods and completed the Depression, Anxiety, and Stress Scale (DASS-21) to measure these states. Standard least squares regression (post hoc Tukey's HSD) compared means between groups, and nominal logistic regression assessed differences in distributions between categories. Higher salt liking was found in participants with DASS-21 scores indicative of severe depression (68.3 vs. 60.0, P = 0.005) and severe anxiety (68.4 vs. 60.0, P = 0.001) in comparison to those with normal scores, in all models. Higher salt liking was found in participants with DASS-21 scores indicative of moderate stress (67.7 vs. 60.2, P = 0.009) in the unadjusted model only. Higher salt liking was found in females with DASS-21 scores indicative of anxiety and stress, and in males with indicative depression and anxiety. No relationships between salt taste intensity ratings and the mood states were found. Results indicate that liking salty foods is positively correlated with depression, anxiety, and stress scores. Further research on the relationships between salt liking and intake of salt and salty foods, and the biological mechanisms of these mood states are needed to direct the application of findings toward potential new risk assessment measures, dietary interventions, or therapeutics.

Addressing schoolteacher food and nutrition-related health and wellbeing: a scoping review of the food and nutrition constructs used across current research.

BACKGROUND: Teachers form a large and essential workforce globally. Their wellbeing impacts personal health-related outcomes with flow on effects for the health, and wellbeing of their students. However, food and nutrition (FN) interventions that include teachers, typically neglect the impact of personal FN factors on a teachers' ability to achieve optimal nutrition-related health and wellbeing, and successfully fulfil their professional FN roles as health promoters, gate keepers, educators', and role models. The aim of this review was to scope FN constructs that have been studied internationally regarding teacher FN-related health and wellbeing. METHODS: Six databases were searched, and papers extracted in June/July 2021. Eligibility criteria guided by the population, concept, context mnemonic included studies published after 2000, in English language, with an aspect of personal FN-related health and wellbeing, among in-service (practising) and pre-service (training), primary, and secondary teachers. Screening studies for inclusion was completed by two independent researchers with data extraction piloted with the same reviewers and completed by lead author, along with complete descriptive and thematic analysis. RESULTS: Ten thousand six hundred seventy-seven unique articles were identified with 368 eligible for full text review and 105 included in final extraction and analysis. Sixty-nine descriptive studies were included, followed by 35 intervention studies, with the main data collection method used to assess both personal and professional FN constructs being questionnaires (n = 99 papers), with nutrition knowledge and dietary assessment among the most commonly assessed. CONCLUSION: FN constructs are used within interventions and studies that include teachers, with diversity in constructs included and how these terms are defined. The evidence from this scoping review can be used to inform data collection and evaluation in future epidemiological and interventional research that addresses teacher FN-related health and wellbeing.

Frequency of Convenience Cooking Product Use Is Associated with Cooking Confidence, Creativity, and Markers of Vegetable Intake.

Low levels of cooking skills, confidence and home cooking are related to poorer dietary outcomes and are a common barrier to adequate vegetable consumption. Convenience cooking products may play a role in lowering the levels of confidence and creativity required to prepare home-cooked meals. It has previously been reported that those who use convenience cooking products have lower levels of cooking confidence and creativity and lower vegetable intakes compared to those who do not use these products. However, the relationship between these outcomes and the frequency of use of convenience cooking products has not been assessed. Therefore, a balanced demographic panel of Australian adults (n = 1034) was surveyed on the frequency of convenience cooking product use, vegetable intake and variety, and opinions and habits regarding vegetable intake. Those who used the products more regularly had higher cooking confidence and creativity, and higher vegetable variety scores, compared to less regular users (p < 0.05). However, the frequency of use of convenience cooking products was not associated with higher vegetable intake and did not influence views around the ease of eating vegetables. Therefore, these products may be a tool for assisting those with lower levels of cooking skills in accessing a higher variety of vegetables, but vegetable quantity in these products may need to be revised to assist consumers in better meeting intake recommendations.

SnackTrack-An App-Based Tool to Assess the Influence of Digital and Physical Environments on Snack Choice.

As food choices are usually processed subconsciously, both situational and food environment cues influence choice. This study developed and tested a mobile app to investigate the association between physical and digital environments on snack choices. SnackTrack was designed and used to collect data on the snack choices of 188 users in real-life settings during an 8-week feasibility trial. The app asks users to take a photo of the food they are planning to consume and to provide additional information regarding the physical environment and context in which this food was eaten. The app also displayed various user interface designs (i.e., different background images) to investigate the potential effects of images on snack choice. Preliminary results suggest that the time of snack obtainment did not have a significant effect on the healthfulness of the snacks chosen. Conversely, it was found that unhealthy background images appeared to encourage healthier snack choices. In conclusion, despite consumers having the knowledge to make healthy choices, environmental cues can alter food choices. SnackTrack, a novel tool to investigate the influence of physical and digital environments on consumers' food choices, provides possibilities for exploring what encourages (un)healthy eating behaviours.

Facilitators and barriers to providing culinary nutrition, culinary medicine and behaviour change support: An online cross-sectional survey of Australian health and education professionals.

BACKGROUND: An Australia wide cross-sectional online survey examined facilitators and barriers of health and education professionals to providing culinary nutrition (CN) and culinary medicine (CM) education and behaviour change support in usual practice, in addition to identifying continuing professional development (CPD) needs in this domain. METHODS: Survey items included socio-demographic characteristics, cooking and food skills confidence, nutrition knowledge (PKB-7), fruit and vegetable intake (FAVVA) and CPD needs. Data were summarised descriptively. RESULTS: Of 277 participants, 65% were likely/somewhat likely to participate in CN CPD. Mean (SD) cooking and food skill confidence scores were 73 (17.5) and 107.2 (24), out of 98 and 147, respectively. Mean PKB-7 score was 3.7 (1.4), out of 7. Mean FAVVA score was 98 (29), out of 190. CONCLUSIONS: Gaps in knowledge and limited time were the greatest modifiable barriers to providing CM/CN education and behaviour change support in practice. Health and education professionals are interested in CPD conducted by dietitians and culinary professionals to enhance their knowledge of CM/CN and behaviour change support.

Why do experts disagree? The development of a taxonomy.

People are increasingly exposed to conflicting health information and must navigate this information to make numerous decisions, such as which foods to consume, a process many find difficult. Although some consumers attribute these disagreements to aspects related to uncertainty and complexity of research, many use a narrower set of credibility-based explanations. Experts' views on disagreements are underinvestigated and lack explicit identification and classification of the differences in causes for disagreement. Consequently, there is a gap in existing literature to understand the range of reasons for these contradictions. Combining the findings from a literature study and expert interviews, a taxonomy of disagreements was developed. It identifies 10 types of disagreement classified under three dimensions: informant-, information- and uncertainty-related causes for disagreement. The taxonomy may assist with adoption of more effective strategies to deal with conflicting information and contributes to research and practice of science communication in the context of disagreement.

Effectiveness of school-based nutrition intervention components on fruit and vegetable intake and nutrition knowledge in children aged 4-12 years old: an umbrella review.

CONTEXT: School-based nutrition interventions can support healthy eating in children. OBJECTIVE: To identify components of school-based nutrition interventions and synthesize the impact on consumption of fruits and vegetables (FV) and nutrition knowledge (NK) in children aged 4-12 y. DATA SOURCES: Following Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines and PICOS inclusion criteria, relevant systematic reviews and/or meta-analyses, written in English, published between 2010 and August 2020, across 6 databases were identified. DATA EXTRACTION: Two reviewers independently performed data extraction and assessed the study quality. DATA ANALYSIS: The JBI Critical Appraisal Instrument for Systematic Reviews and Research Syntheses was used to assess review quality, and the Grading of Recommendations Assessment, Development, and Evaluation approach was used to rate strength of evidence. RESULTS: From 8 included reviews, 7 intervention components were identified: FV provision, gaming/computer-delivered, curriculum, experiential learning, reward/incentives, nudging, and caregiver involvement. FV provision had the greatest effect on F intake, gaming/computer-delivered on V intake, and curriculum on NK. CONCLUSION: FV provision and gaming/computer-delivered components showed, overall, some positive effect on FV intake, as did the curriculum component on NK. More evidence evaluating single-component effectiveness that considers the setting and context of nutrition interventions is required to strengthen the evidence base. SYSTEMATIC REVIEW REGISTRATION: PROSPERO, registration no.: CRD42020152394.

Impact and evaluation of an online culinary nutrition course for health, education and industry professionals to promote vegetable knowledge and consumption.

BACKGROUND: Poor diet, including inadequate vegetable intake, is a leading risk factor for noncommunicable disease. Culinary and nutrition education provided to trainee and practising health and education professionals is an emerging strategy to promote improved dietary intake, including vegetable consumption. We evaluated the impact and feasibility of an online culinary medicine and nutrition (CM/CN) short course for health, education and vegetable industry professionals. The course aimed to improve participants' skills and confidence to prepare vegetables, knowledge of evidence-based nutrition information and recommendations for improving vegetable consumption and diet quality. METHODS: A pre-post study consisting of two separate groups participating in two course rounds recruited practising professionals (n = 30) working in health; community, adult and/or culinary education; and the vegetable industry. Evaluation assessed diet quality, vegetable consumption barriers, cooking and food skill confidence, nutrition knowledge and process measures. RESULTS: Seventeen participants (68%) completed the programme. Pre- to postintervention statistically significant increases in vegetables (M 1.3, SD 2.2), fruit (M 1.6, SD 3.1), and breads and cereal (M 1.1, SD 1.7) intakes were observed. Statistically significant increases and large effect sizes for mean food skill confidence scores (M 8.9, SD 15.4, Cohen's d 0.56) and nutrition knowledge scores (M 6.2, SD 15.4, Cohen's d 0.83) were also observed pre- to postintervention. CONCLUSIONS: The short online course was feasible and improved diet quality, food skill confidence and nutrition knowledge. Online CM/CN education for practising professionals represents a promising area of research. Future research involving a larger study sample and a more rigorous study design such as a randomised control trial is warranted.

Do sauces, condiments and seasonings contribute important amounts of nutrients to Australian dietary intakes?

BACKGROUND: Dietary assessment commonly focuses on particular foods/food groups as indicators of overall dietary intake. Accompaniments such as sauces are not often a focus. The present study describes daily intakes of sauces, condiments and seasonings (SCS) using the most recent Australian National Nutrition and Physical Activity Survey (NNPAS), as well as the contribution to total energy and selected nutrient intakes. METHODS: NNPAS dietary data were collected by one 24-h recall for 12,153 individuals aged ≥ 2 years (53% female, 29% aged 31-50 years). SCS (i.e., any food items not normally consumed as a food itself, consumed as an addition to a dish after cooking/preparation to enhance flavour) were identified/coded within the dietary data and reported in terms of how they were consumed, primary composition, and contribution to total daily energy and selected macro- and micronutrient intakes. RESULTS: Most participants (85.1%) reported consuming at least one SCS on the day of the recall (median [interquartile range], 2 [1-4]). SCS were predominantly consumed within main meals (breakfast, lunch, dinner) (73.9%), and were predominantly sugar/sugar products (e.g., white sugar) (35.0%), or fats and oils (e.g., butter) (25.9%). SCS contributed a median (interquartile range) of 3.8% (1.1-7.9) of total energy, 5.3% (0.0-15.5) of fat, 2.3% (0.1-6.6) of carbohydrate and 0.2% (0.01-1.2) of protein intake. SCS made the largest contribution towards vitamin E (females median 3.6%; males median 3.4%) and sodium intakes (females median 3.0%; males median 2.9%). CONCLUSIONS: Although SCS contribute a small proportion of total energy and nutrient intakes in the Australian population, the contribution is more substantial for some nutrients and population groups.

The effects of nutrition and health claims on the nutrient composition of single and subsequent meal servings.

Nutrition and health claims (NHCs) can help individuals make better food choices. While NHCs have been found to influence consumer perceptions and consumption, there has been less focus on how claims influence the nutritional composition of servings. There has also been little attention paid to longer term or compensatory effects of claims on subsequent food selection. This manuscript details two studies considering these matters. Study 1 (n = 60) was a within-subjects experiment to measure the impact of NHCs on food selection and nutritional composition at single meal servings. Participants served from three fake food buffet meal stations (breakfast, hot meal, snacks) with NHCs present or absent. Study 2 (n = 55) was a within-subjects experiment to examine the impact of NHCs on food selection and nutritional composition at a subsequent meal. Participants served from a fake food buffet breakfast with or without NHCs followed by a lunch without NHCs. In study 1, while results varied for different meals, the presence of claims was found to significantly reduce the amount of energy, fat, saturated fat, sugar, carbohydrates, and sodium, and increase the amount of protein in meals that were served. Results for fibre were mixed. In addition, NHCs increased the quantity of food served in the snacks condition. There was no evidence of claims at breakfast impacting the nutritional composition of subsequent lunch servings in study 2. Despite claims potentially increasing serving quantities, the nutritional composition of chosen servings was more encouraging and claims may help individuals to meet recommended nutritional daily guidelines. These findings have wider implications in terms of government policy, food reformulation, and the continuing debate around the use of nutrient profiling regulations for products carrying claims.

Development of the Cook-EdTM Matrix to Guide Food and Cooking Skill Selection in Culinary Education Programs That Target Diet Quality and Health.

Culinary education programs are generally designed to improve participants' food and cooking skills, with or without consideration to influencing diet quality or health. No published methods exist to guide food and cooking skills' content priorities within culinary education programs that target improved diet quality and health. To address this gap, an international team of cooking and nutrition education experts developed the Cooking Education (Cook-EdTM) matrix. International food-based dietary guidelines were reviewed to determine common food groups. A six-section matrix was drafted including skill focus points for: (1) Kitchen safety, (2) Food safety, (3) General food skills, (4) Food group specific food skills, (5) General cooking skills, (6) Food group specific cooking skills. A modified e-Delphi method with three consultation rounds was used to reach consensus on the Cook-EdTM matrix structure, skill focus points included, and their order. The final Cook-EdTM matrix includes 117 skill focus points. The matrix guides program providers in selecting the most suitable skills to consider for their programs to improve dietary and health outcomes, while considering available resources, participant needs, and sustainable nutrition principles. Users can adapt the Cook-EdTM matrix to regional food-based dietary guidelines and food cultures.

Evaluating an integrated nutrition and mathematics curriculum: primary school teachers' and students' experiences.

OBJECTIVE: To present the process evaluation of a curricular Cross-curricular Unit on Portion Size (CUPS) program that integrates nutrition and mathematics, describing teacher and student perspectives on the intervention. DESIGN: Semi-structured interviews and focus groups were conducted following the implementation of the CUPS program during a pilot randomised controlled trial designed to evaluate efficacy for improved portion size estimation. Lessons involved experiential learning using food models and mathematics cubes and focussed on portion size, food groups, volume and capacity. Data were collected immediately post-intervention and analysed using an inductive thematic approach. SETTING: Primary schools in Newcastle, Australia. PARTICIPANTS: Year 3 and/or 4 teachers (n 3) and their students (n 15). RESULTS: Teachers believed the programme supported the learning of nutrition concepts, with the majority of students enjoying the lessons, cubes and food models. Teachers indicated most students were engaged and became more aware of healthy eating and serve size recommendation. Although teachers enjoyed and valued the lessons, they suggested that the integration of volume and capacity should be further improved in order to address the time barrier for teaching nutrition. CONCLUSION: The process evaluation reports on challenges and successes of implementing an integrative nutrition programme. This teaching approach could be useful and successful when aligned with teacher' and student' needs. Based on participant feedback, lessons could be refined to enhance integration of mathematics content and to support student learning.

Correlations between Convenience Cooking Product Use and Vegetable Intake.

Australians' vegetable intakes are low, and strategies are needed for improvement. Popular convenience cooking products (meal bases and recipe bases, ready-made marinades, and convenience cooking sauces) address common cooking and vegetable consumption barriers (cost, time, and cooking skills). However, relationships between their usage and vegetable intakes have not been established. Therefore, Australian adults were surveyed on convenience cooking product use, vegetable intake and variety, behaviours when barriers to vegetable inclusion arise, and vegetable choice factors. Of 842 participants, 36.7% used meal and recipe bases, 28.1% marinades, and 47.2% cooking sauces, with most following the back-of-pack recipes at least sometimes. A total of 12.5% of participants used products from all three categories. Factors associated with lower vegetable intakes were meal and recipe base and cooking sauce use, using a higher number of product categories, and always following back-of-pack recipes. Factors associated with lower vegetable variety were the use of meal and recipe bases and cooking sauces. Factors in vegetable choice, and behaviours when not including a listed vegetable (due to not having or liking the vegetable, or an inability to eat it) did not vary by usage habits. These results provide insights into current vegetable intakes of those using convenience products, providing a baseline for future changes in the product design and recommendations.

Development and Reliability Testing of a Nutrition Knowledge Questionnaire for Australian Children (the CNK-AU).

OBJECTIVE: To adapt and test an existing questionnaire to assess Australian children's level of nutrition knowledge. DESIGN: The child nutrition knowledge questionnaire for Australian children consists of 8 nutrition-related categories: healthy choices, portion and serving sizes, balanced meals, nutrition labels, nutrient functions, and food sources, safety, and categories. Participants completed the questionnaire at 2 time points, with 1 week in between. SETTING: The questionnaire was completed online in a primary school classroom using an Android tablet. PARTICIPANTS: Fifth- and sixth-year students (n = 94; aged 10.9 years; SD, 0.76) at a primary school in New South Wales, Australia. VARIABLES MEASURED: Item difficulty, item discrimination, and reliability. ANALYSIS: Item analysis, interrater reliability, and test-retests. RESULTS: The intrarater reliability per item between the first visit and 1 week later was moderate to substantial for the majority of items (mean κ = 0.50; SD, 0.21). Test-retest found a significant correlation for total score (r = 0.756), with all categories except portion and serving sizes showing significant correlations above r = 0.502. CONCLUSIONS AND IMPLICATIONS: The child nutrition knowledge questionnaire for Australian children has the potential to be a reliable and practical questionnaire for measuring Australian children's nutrition knowledge. The questionnaire may be useful for future work evaluating the effectiveness of nutrition education interventions and would potentially be adapted to other cultures.

Making sense of adolescent-targeted social media food marketing: A qualitative study of expert views on key definitions, priorities and challenges.

Traditional food marketing stimulates adolescents' consumption of energy-dense, nutrient-poor foods. These dietary behaviours may track into adulthood and lead to weight gain, obesity and related non-communicable diseases. While social media use in adolescents has proliferated, little is known about the content of food marketing within these platforms, and how this impacts adolescents' dietary behaviours. This paper aimed to obtain expert insights on factors involved in the association between social media food marketing (SMFM) and adolescent dietary behaviours, and to explore their views on key priorities, challenges and strategies for future SMFM research and policies. One-on-one semi-structured interviews (n = 17) were conducted with experts from Western Europe, Australia and North America, in the fields of public health (policy), nutrition science, social media marketing, adolescent medicine, clinical psychology, behavioural sciences, communication, food industry, social influencing, and social marketing. The experts' collective responses identified that the line between food content posted by social media users and food companies is blurred. Adolescents' processing of SMFM may be mostly implicit, involving social comparison, emotional engagement, and attaching symbolic meanings to foods. Mediating factors and adolescent-specific and SMFM-specific moderating factors potentially influencing adolescents' response to SMFM were summarized in a Social Ecological model. Experts agreed that there is limited scientific evidence on adolescent-targeted SMFM and there are no strict regulations in place to protect adolescents from unhealthy SMFM, while adolescents are active social media users who are cognitively vulnerable to implicit marketing tactics. Adolescent-targeted SMFM should be controlled by encouraging healthy food marketing or limiting junk food marketing. Also, prioritizing both quantitative research on SMFM exposure and its impact, and qualitative research to obtain adolescents' perspectives, is crucial to advocate for regulatory changes regarding adolescent-targeted SMFM content.

Nutrition across the curriculum: a scoping review exploring the integration of nutrition education within primary schools.

Primary schools contribute to promoting healthy eating behaviour and preventing overweight and obesity by providing nutrition education. Research highlights the importance of improving teachers' programme implementation to enhance intervention effectiveness. An integrative approach has been suggested to reduce time barriers that teachers currently experience in teaching nutrition. This scoping review explores use and effectiveness of integrative teaching in primary-school-based nutrition education programmes. Six databases were searched for primary-school-based interventions on nutrition education. Papers reporting on integration of nutrition topics within core curriculum were included. Abstracts and full texts of potentially relevant articles were screened to determine eligibility. Next, data were extracted and tabulated. Findings were collated and summarised to describe intervention characteristics, subject integration and effectiveness of the included programmes. Data describing integration of nutrition into the primary school curriculum were extracted from 39 eligible papers. Nutrition education programmes often involve lessons about food groups and are frequently embedded within the mathematics, science or literacy syllabus. Although articles report on the integration of nutrition, the use of this approach was not commonly described in detail. Only seven papers discussed student outcomes related to the integration of nutrition education within core subjects. The ability to draw strong conclusions about school-based nutrition intervention effectiveness is limited by the current lack of programme description and methodological issues. Hence, more research is warranted to inform evidence on effectiveness of integrative nutrition education for both teacher and student outcomes. Future studies that include greater detail regarding the integrative approach are needed.