Effects of marketing claims on toddler food products on parents' product preferences, perceptions and purchasing intentions: an online experiment.

BACKGROUND: The retail market for toddler-specific packaged foods is growing. Many of these products are ultra-processed and high in nutrients of concern for health, yet marketed in ways that may make them appear wholesome. This study aims to assess parents' responses to claims on unhealthy, ultra-processed toddler food products and test whether removing such claims promotes more accurate product perceptions and healthier product preferences. METHODS: Parents of toddlers aged 12 to < 36 months (N = 838) were recruited for an online experiment testing four on-pack claim conditions: control (no claim); 'contains "good" ingredient'; 'free from "bad" ingredient'; and unregulated 'child-related' claim. Participants were randomly assigned to one condition, then viewed images of toddler food products that varied in nutrition content and the claims displayed. Participants completed tasks assessing product preferences (unhealthy product displaying claim vs. a healthier option with no claim, across four food categories (banana bars, strawberry snacks, blueberry yogurt snacks and veggie snacks)), purchase intentions and product perceptions. Poisson regression (count variable) and linear regression (continuous outcomes) analyses were employed to test for mean differences by marketing claim conditions. RESULTS: For the overall sample, brief exposure to 'free from "bad" ingredient' claims increased participant's intentions to purchase unhealthy food products for their toddlers, but there was no clear evidence that 'contains "good" ingredient' claims and 'child-related' claims significantly impacted parent's preferences, purchase intentions and perceptions of toddler foods. However, certain claims influenced particular parent subgroups. Notably, parents with three or more children chose more unhealthy products when these products displayed 'contains "good" ingredient' or 'free from "bad" ingredient' claims; the latter claims also promoted stronger purchase intentions and enhanced product perceptions among this subgroup. CONCLUSIONS: Findings indicate that 'free from "bad" ingredient' claims on unhealthy toddler foods are of most concern, as they boost the appeal of these products to parents. 'Contains "good" ingredient' claims and 'child-related' claims showed limited effects in this study. Considering available evidence, we recommend claims should not be permitted on child-oriented foods, as they may promote inaccurate product perceptions and unhealthy product choices by parents, that can detract from their children's diets and health.

Evaluation of the population-level impacts of the LiveLighter® obesity prevention campaign from 2012 to 2019 based on serial cross-sectional surveys.

BACKGROUND: Halting and reversing the upward trend in obesity requires sustained implementation of comprehensive, evidence-based strategies at the population-level. The LiveLighter® program targets adults using a range of public education strategies, including mass media campaigns, to support healthy lifestyle changes to attain or maintain a healthy weight and reduce the risk of chronic disease. LiveLighter® has been implemented in Western Australia (WA) since 2012 and, to our knowledge, includes the longest running adult-targeted mass media campaign for healthy weight and lifestyle promotion and education globally. This evaluation assessed the impact of LiveLighter® on WA adults' knowledge, intentions and behaviours as they relate to healthy eating and body weight from 2012 to 2019. METHODS: LiveLighter® mass media campaigns, which are TV-led and aired statewide, depict genuine, graphic imagery of visceral fat around internal organs to raise awareness about the link between excess body weight and chronic diseases; demonstrate how unhealthy food and drink consumption can contribute to unhealthy weight gain; and recommend healthy alternatives. Cross-sectional telephone surveys were conducted at baseline and following each campaign phase with an independent, randomly selected sample of WA adults aged 25 to 49 years (n = 501 to n = 1504 per survey) to assess their knowledge of the link between excess body weight and chronic diseases, and their intentions and behaviours related to healthy eating and weight. Multivariable logistic regression models were undertaken to assess differences in responses between baseline and each post-campaign survey. RESULTS: Compared to baseline, there were significant increases in the proportion of respondents reporting knowledge of excess body weight as a risk factor for certain cancers and type 2 diabetes, intentions to eat more fruit and vegetables and drink less sugar sweetened beverages (SSBs) in the next seven days, and the proportion of respondents who reported meeting guidelines for daily vegetable intake. Reported consumption of SSBs significantly decreased. CONCLUSIONS: LiveLighter® is associated with improvements in knowledge of the health risks associated with excess body mass, increased vegetable intake and reduced SSB consumption in WA adults. These findings support the use of sustained, well-designed healthy lifestyle promotion and education programs as part of a comprehensive obesity prevention strategy.

Is food and drink advertising across various settings associated with dietary behaviours and intake among Australian adolescents? Findings from a national cross-sectional survey.

ISSUE ADDRESSED: The pervasive promotion of energy-dense, nutrient-poor food and drinks undermines efforts by adolescents and their parent/carers to maintain a nutritious diet during a crucial developmental period. This study examined the association between awareness of food and drink advertisements and adolescents' dietary behaviours and intake. METHODS: A sample of Australian secondary students aged 12-17 years (N = 8763) self-reported their awareness of food and drink advertisements across seven settings, whether they had tried a new product or asked a parent/carer to purchase a product they had seen advertised, and their consumption of various unhealthy food and drink types. Analyses used multilevel mixed-effects generalised linear models adjusted for school-level clustering, socio-demographic factors and television viewing. RESULTS: Students with higher advertising awareness were more likely to have tried a new product they had seen advertised (adjusted prevalence ratio [APR] = 1.62, 95% CI = 1.51-1.73, p < .001) and asked their parent/carer to buy an advertised product (APR = 1.62, 95% CI = 1.51-1.73, p < .001) at least once in the past month. As advertising awareness increased, so too did students' likelihood of reporting these dietary behaviours. A high unhealthy food intake was more commonly reported among students with higher advertising awareness (APR = 1.45, 95% CI = 1.32-1.58, p < .001), as was a high unhealthy drink intake (APR = 1.29, 95% CI = 1.18-1.42, p < .001). CONCLUSIONS: Australian adolescents are vulnerable to the persuasive effects of food and drink marketing. SO WHAT?: Greater restrictions on the way the food and drink industry can market their products to adolescents are needed to better support them in developing and maintaining positive dietary behaviours.

Australian adults' attitudes towards government actions to protect children from digital marketing of unhealthy food and drink products.

ISSUE ADDRESSED: This study assessed Australian adults' attitudes towards government actions to protect children from digital marketing of unhealthy food and drink products. METHODS: An online survey was undertaken by Australian adults aged 18-64 recruited via two national panels in December 2019 (N = 2044). RESULTS: Most respondents (69%) agreed the Government should protect children from unhealthy food and drink marketing and advertising broadly. Those who agreed most commonly indicated children should be protected up to age 16 (34%) or 18 (24%). There was widespread support for government actions to stop unhealthy food and drink marketing on digital platforms (e.g., internet sites) (68%-69%) and various digital marketing techniques (e.g., advertising by brands on social media) (56%-71%). A total ban on targeting unhealthy food and drink marketing to children online received the highest level of support (76%). Most respondents (81%) disagreed unhealthy food and drink companies should be able to collect children's personal information for marketing purposes. Support for examined actions was generally higher among older adults, more educated adults and more frequent internet users, lower among males, and similar between parents and non-parents. CONCLUSIONS: There is public perception that the government is responsible for protecting children, well into adolescence, from unhealthy food and drink marketing broadly. Widespread public support extends to specific actions to reduce children's exposure to digital marketing of unhealthy food and drink products. SO WHAT?: Implementation of policies to protect children from digital marketing of unhealthy food and drink products would be well received by the Australian public.

Potential impact of the adult-targeted LiveLighter "Sugary Drinks" campaign on adolescent consumption: Findings from a national cross-sectional school survey.

ISSUE ADDRESSED: To examine the potential impact on trends in reported adolescent sugar-sweetened beverage (SSB) consumption following the adult-targeted Western Australian (WA) LiveLighter "Sugary Drinks" campaign, which is a television-led healthy lifestyle promotion and education mass media campaign that aired in multiple bursts between July 2013 and December 2018. METHODS: Data were from a repeated cross-sectional survey of Australian secondary school students aged 12-17 years conducted nation-wide in 2009-2010 (n = 13 790 from 238 schools), 2012-2013 (n = 10 309 from 196 schools) and 2018 (n = 9102 from 104 schools). RESULTS: Significant declines in high SSB consumption (≥4 cups/week) were observed between 2009-2010 and 2012-2013 among students in both WA (27.1% vs 20.3%; odds ratio [OR] = 0.65, 95% confidence interval [CI] = 0.50-0.84, P = .001) and all other states and territories combined (30.6% vs 21.4%; OR = 0.60, 95% CI = 0.53-0.68, P < .001). Compared to 2012-2013, the proportion of students in WA who reported high SSB consumption was significantly lower in 2018 (20.3% vs 9.6%; OR = 0.37, 95% CI = 0.21-0.65, P = .001), whereas this significant decrease was not observed in all other states and territories combined (21.4% vs 17.8%; OR = 0.81, 95% CI = 0.67-0.97, P = .024). Interaction testing indicated that the recent decline observed in WA was more pronounced among female than male students. CONCLUSIONS: Mass media campaigns targeted towards the Australian adult population may have favourable effects among adolescents with the steeper decline in high SSB consumption observed in WA between 2012-2013 and 2018 coinciding with the repeated airing of the LiveLighter "Sugary Drinks" campaign in this state. SO WHAT?: Government investment in mass media campaigns may hasten declines in adolescents' SSB consumption.

Food purchasing practices in various retail settings and dietary intake: A cross-sectional survey of Australian adolescents.

BACKGROUND/AIMS: Discretionary, energy-dense, nutrient-poor food and drinks are heavily marketed and readily available in retail settings frequented by adolescents. This study examines associations between food purchasing practices in various retail settings and dietary intake among Australian adolescents. METHODS: Participants were students in years 8 to 11 (ages 12-17 years) who completed the 2009-10 (n = 13 790), 2012-13 (n = 10 309) or 2018 (n = 9102) National Secondary Students' Diet and Activity (NaSSDA) cross-sectional survey. Multistage stratified random sampling was used. An online survey completed at school assessed self-reported frequency of food purchasing practices in various retail settings and consumption of discretionary food, sugary drinks, fruit and vegetables. Generalised linear regression models examined associations between food purchasing practices and dietary behaviour. RESULTS: Relative to students who brought lunch from home, those who purchased lunch from school or nearby outlets reported higher intake of discretionary food and sugary drinks and lower fruit intake. Buying lunch from school was also associated with lower vegetable intake. Buying food or drinks on the school commute, outside school grounds during school hours, from supermarket checkouts, and using mobile phone apps were each associated with higher discretionary food and sugary drink intake (all P < .01). CONCLUSIONS: Purchasing food or drink in various retail settings is associated with higher intake of discretionary food and drink among Australian adolescents, and some purchasing practices appeared to displace fruit and vegetable intake. SO WHAT?: These findings highlight a need to improve the accessibility and promotion of healthier food and drink options in schools and other retail settings.

Adolescents' knowledge and beliefs regarding health risks of soda and diet soda consumption.

OBJECTIVE: To examine Australian adolescents' knowledge and beliefs regarding potential health consequences of soda and diet soda consumption and nutritional aspects of soda and explore associations with consumption. DESIGN: A survey utilising a nationally representative sample (stratified two-stage probability design) assessed knowledge of nutritional contents and health consequences of soda, and beliefs regarding health risks of diet soda, and soda and diet drink consumption. SETTING: Australia. PARTICIPANTS: 9102 Australian school students (12-17 years) surveyed in 2018. RESULTS: Adolescents had lower nutritional knowledge (sugar content (22·2 %), exercise equivalent (33·9 %), calories/kJ (3·1 %)) than general knowledge of health risks (87·4 %) and some health effects (71·7-75·6 % for tooth decay, weight gain and diabetes), with lower knowledge of heart disease (56·0 %) and cancer (19·3 %). Beliefs regarding health effects of diet soda were similar, albeit not as high. In general, female sex, older age and less disadvantage were associated with reporting health effects of soda and diet soda, and nutritional knowledge of soda (P < 0·001). Those reporting tooth decay, weight gain, heart disease and diabetes as health effects of soda and diet soda were lower consumers of soda and diet drinks (P < 0·001), as were those with higher nutritional knowledge (sugar content and exercise equivalent; P < 0·001). CONCLUSIONS: This study highlights possible knowledge gaps regarding the health effects of soda and nutritional knowledge for public health intervention. When implementing such interventions, it is important to monitor the extent to which adolescents may consider diet drinks as an alternative beverage given varied beliefs about health consequences and evolving evidence.

Prevalence and trends in Australian adolescents' adherence to 24-hour movement guidelines: findings from a repeated national cross-sectional survey.

BACKGROUND: 24-hour movement guidelines recommend a healthy balance of high levels of physical activity, low levels of sedentary behaviour and appropriate sleep duration each day. At present, surveillance data on how Australian adolescents are performing against these guidelines are lacking. This study aims to describe the extent to which Australian secondary school students are adhering to the physical activity, sedentary recreational screen time and sleep duration recommendations outlined in the national 24-hour movement guidelines for children and young people. It also examines whether there are socio-demographic differences in levels of compliance and if there have been significant changes in these behaviours over time. METHODS: A repeated national cross-sectional survey of students in grades 8 to 11 (ages 12-17 years) was conducted in 2009-2010 (n=13,790), 2012-2013 (n=10,309) and 2018 (n=9,102). Students' self-reported physical activity, screen time and sleep behaviours were assessed using validated instruments administered in schools via a web-based questionnaire. RESULTS: In 2018, around one in four students (26%) did not meet any of the 24-hour movement guidelines, while only 2% of students met all three. Adherence to the sleep duration recommendation was highest (67%), with substantially smaller proportions of students meeting the physical activity (16%) and screen time (10%) recommendations. Differences in adherence by sex, grade level and socio-economic area were apparent. Students' compliance with the screen time recommendation has declined over time, from 19% in 2009-2010 to 10% in 2018. However, there has been no significant change in the proportion meeting the physical activity (15% in 2009-2010 cf. 16% in 2018) and sleep duration (69% in 2009-2010 cf. 67% in 2018) recommendations. Compliance with all three guidelines has remained very low (<3%) across each survey round. CONCLUSIONS: There is considerable scope to improve Australian adolescents' physical activity and sedentary behaviours in line with the national 24-hour movement guidelines. Policy proposals and environmental interventions, particularly those focused on replacing sedentary screen time with physical activity (e.g. promotion of active commuting to/from school), are needed to better support Australian adolescents in meeting the 24-hour movement guidelines.

LiveLighter® 'Junk Food' mass media campaign increases behavioural strategies to reduce consumption.

The LiveLighter® 2016 'Junk Food' campaign ran for 5 weeks in Western Australia (WA) and urged adults to reduce their junk food consumption to avoid weight gain and associated chronic disease. A cohort design assessed campaign impact on knowledge, beliefs and behaviour. Pre-campaign (n = 1501) and post-campaign (n = 737) telephone surveys of WA adults aged 25-49 were undertaken. A post-campaign-only sample (n = 501) controlled for pre-test effects. The campaign reached 57% of respondents and increased knowledge of the link between overweight and non-alcoholic fatty liver disease (78% cf. 87%; P < 0.01). Following campaign activity, respondents were more likely to avoid purchasing food from settings depicted in the advertisements (fast food outlets: 63% cf. 77%; service stations: 82% cf. 93%; vending machines: 87% cf. 96%; all P < 0.001), particularly among pre-campaign consumers of fast food and salty snacks (≤2 times/week). Weight-loss self-efficacy increased among adults with higher body weight and campaign exposure (89% cf. 97%; P < 0.01), and there was no increased endorsement of overweight stereotypes among the full sample. Support for fiscal disincentives and nutritional disclosure policies increased among healthy weight adults. LiveLighter® positively influenced knowledge, beliefs and behaviours, along with attitudes towards policies to encourage healthy eating, supporting LiveLighter® as an advocacy campaign.

Further evidence from the LiveLighter® campaign: A controlled cohort study in Victoria and South Australia.

ISSUE ADDRESSED: The LiveLighter® healthy weight and lifestyle social marketing campaign, developed in Western Australia, employs graphic advertising to communicate negative health effects of overweight and motivate behaviour change. This study extends prior evidence of the effectiveness of the LiveLighter® campaign by evaluating its implementation in a new jurisdiction. METHODS: A controlled cohort design was employed in intervention (Vic) and comparison states (SA), with and without campaign exposure. Population surveys conducted at baseline (BL) (n = 1000 each state), had 75% retention at follow-up (FU) (Vic: n = 715; SA: n = 787). RESULTS: Total campaign awareness was moderate (61.5%). Exposed respondents indicated the campaign was "believable" (91.0%), made a strong argument for reducing weight (87.3%), made them "stop and think" (70.1%), motivated action to reach/stay a healthy weight (59.1%) and was "relevant" (55.6%). The proportion of respondents indicating "toxic fat build up" was a health consequence of overweight increased significantly from BL to FU in Vic and to a lesser extent in SA (Vic:55.7% vs 75.9%; SA:58.1% vs 62.6%, interaction P < .001). The proportion indicating cancer is a health consequence of overweight increased significantly from BL to FU in Vic, but not in SA (Vic:77.1% vs 83.4%; SA:77.8% vs 78.1%, interaction P < .05). CONCLUSIONS: This study extends the evidence base for the LiveLighter® campaign. Sustained campaign activity with clear behavioural recommendations is required to translate improved knowledge into behaviour change. SO WHAT: Evidence-based mass media campaigns can positively impact health behaviours to address the unsustainable increasing burdens of unhealthy weight, dietary risk and inadequate physical activity. A National Obesity Campaign is needed and LiveLighter® is a ready-made, relevant Australian resource.

Differences in healthiness perceptions of food and dietary patterns among the general public and nutrition experts: A cross-sectional online survey.

ISSUES ADDRESSED: Diet quality plays a vital role in the prevention of prevalent non-communicable diseases; however, misperceptions of healthiness of common foods and beverages may be undermining Australians' attempts to maintain a healthy diet. The current study aimed to assess the extent and nature of differences in public and expert opinion in the foods, beverages and dietary patterns that are considered healthy. METHODS: A cross-sectional online survey of 1,097 Victorian adults aged 18-64 and 134 professional dietitians and nutritionists assessed healthiness perceptions of foods, beverages and dietary patterns, self-reported dietary patterns, and factors considered when making healthy choices. Differences in perceptions and dietary patterns between samples and by sex, socio-economic area and level of education were assessed using multivariable logistic regression. RESULTS: There were large discrepancies in which items the public and expert samples considered healthy. Females and those in high socio-economic areas tended to report healthiness perceptions that aligned with the expert sample to a greater degree than their counterparts. Personal judgement of products was important to both samples when making decisions about healthy choices. CONCLUSIONS: The public and expert samples differed greatly in healthiness perceptions with significant variation by demographics. SO WHAT?: Well-funded, sustained public health campaigns are needed to provide the public with evidence-based health and nutrition information and combat persuasive, misleading messaging from popular media and marketing.

Energy drink consumption among Australian adolescents associated with a cluster of unhealthy dietary behaviours and short sleep duration.

BACKGROUND: Non-alcoholic energy drinks ('energy drinks') are high in sugar, as well as caffeine, leading to concerns regarding their suitability for children and adolescents. Despite this, marketing of energy drinks is often directed at adolescents, and there are no age restrictions on the sale of these products in Australia. The current study aimed to examine patterns in consumption of energy drinks among Australian secondary school students and identify sociodemographic and behavioural correlates associated with regular consumption. METHODS: Participants were 8942 students in Years 8 to 11 (aged 12 to 17 years) who participated in the 2018 National Secondary Students' Diet and Activity (NaSSDA) cross-sectional survey. A multistage stratified random sampling procedure was used. Within the school setting, students self-completed an online questionnaire assessing their dietary, physical activity and sedentary behaviours. A multilevel logistic regression model was used to examine associations between energy drink consumption and sociodemographic and behavioural factors. RESULTS: Overall, 8% of students reported consuming energy drinks on a weekly basis ('regular consumers'). A further 16% indicated they consume less than one cup per week of these types of drinks, while around three-quarters (76%) reported they do not consume energy drinks. Regular consumption of energy drinks was independently associated with being male, having greater weekly spending money, high intakes of snack foods, fast food, other sugar-sweetened beverages and fruit juice, as well as short sleep duration. There was no independent association with other sociodemographic characteristics (i.e., year level, level of disadvantage, geographic location), consumption of vegetables and fruit, physical activity level, or sedentary recreational screen time. CONCLUSIONS: While most Australian adolescents do not consume energy drinks, regular consumption is more prevalent among males, and consumption appears to cluster with other unhealthy dietary behaviours and short sleep duration. Findings support the need for policies that will reach identified at-risk groups (e.g., increased regulation of the marketing and sale of energy drinks), as well as suggest opportunities for interventions targeting energy drink consumption alongside other unhealthy dietary behaviours.

Can point-of-sale nutrition information encourage reduced preference for sugary drinks among adolescents?

OBJECTIVE: To test whether point-of-sale (POS) information about the nutrition content of sugar-sweetened beverages (SSB) promotes healthier drink choices among teenagers, and explore whether POS intervention effects vary based on prior exposure to a sugary drink public health campaign (13 Cancers). DESIGN: Between-subjects online experiment with three POS signage conditions: no signage (control); sugar content (SC) and Health Star Rating (HSR). Participants viewed their assigned POS sign alone, then alongside a drinks product display and chose which drink they would buy. Perceptions of various drink products and campaign recall were assessed. SETTING: Australia. PARTICIPANTS: Adolescents aged 13-17 years (n 925) recruited via an online panel. RESULTS: POS signs did not promote a significant reduction in preference for SSB (cf. control condition). Cognitive and emotional responses to POS signs were strongest for the SC sign, which was rated higher than the HSR sign on various perceived effectiveness measures. Participants who saw the SC sign rated SSB as less healthy (cf. control condition) and were more likely to accurately estimate the number of teaspoons of sugar in soft drink (cf. HSR sign and control conditions). There was no significant interaction between prior exposure to the 13 Cancers campaign and POS signage condition regarding preferences for and perceptions of SSB. CONCLUSIONS: SSB POS interventions may not have the desired effect on adolescents' drink preferences. Testing SSB POS signs in real-world retail settings is needed to determine whether positive educational impacts extend to promoting healthier drink purchases and reduced SSB consumption among teenagers.

Food and drink marketing on social media and dietary intake in Australian adolescents: Findings from a cross-sectional survey.

Unhealthy food and drink marketing is prominent on social media and use of such platforms is widespread among adolescents. This study aims to examine the association between exposure to and engagement with food or drink advertisements on social media and unhealthy food and drink intake in Australian adolescents. In 2018, a representative sample of secondary school students aged 12-17 years (N = 8708) self-reported how frequently they saw food or drink advertisements on social media (exposure), 'liked' or 'shared' food or drink posts (engagement), and consumption of various unhealthy food and drinks. Multilevel logistic regression assessed the association between exposure to and engagement with food marketing on social media and high intake of unhealthy food and drinks. Fifty-five percent of students reported seeing a food or drink advertisement on social media at least weekly, while engagement was less frequent. Exposure to a food or drink advertisement on social media at least once in the last week was associated with a high intake of unhealthy drinks, while liking or sharing a food or drink post at least once in the last month was associated with a high intake of unhealthy food and drinks (all p < 0.01). As frequency of engagement with this type of marketing increased, so too did the likelihood of a high intake of unhealthy food and drinks. The association between exposure to and engagement with food or drink marketing and high unhealthy drink intake was driven by males, while all associations persisted irrespective of age. Holding manufacturers to higher standards in their digital marketing of unhealthy food and drink products through improved policy design and enforcement capability may be crucial in enabling young individuals to maintain a healthy diet.

Grandparents' perceptions of the barriers and strategies to providing their grandchildren with a healthy diet: A qualitative study.

Grandparents are playing an increasingly important role in shaping their grandchildren's nutritional environment. Evidence-based interventions tailored to grandparents thus constitute a potential means of promoting healthy eating among children. For such interventions to be effective, they must account for the unique issues encountered by grandparents. However, research examining the potential needs of grandparents is limited. The present study thus explored (i) grandparents' perceptions of the barriers to providing their grandchildren with healthy food and minimizing consumption of unhealthy food and (ii) the strategies grandparents believe help increase their grandchildren's consumption of healthy food and reduce intake of unhealthy food. Seventy-nine grandparents, each of whom provided care to at least one grandchild aged 3-12 years, participated in one of ten focus groups. Transcripts from each of the groups were imported into NVivo for qualitative coding and semantic thematic analysis. The food preferences of their grandchildren, the promotion of unhealthy food consumption by their grandchildren's parents, advertising of unhealthy food, and peer pressure were the most frequently cited barriers to healthy food consumption. Grandparents reported using multiple strategies to increase their grandchildren's fruit and vegetable consumption and minimize unhealthy food intake. The most common were disguising vegetables, making fruit and vegetables appealing, managing child eating (e.g., limiting access to unhealthy food), saying no to requests for unhealthy food, involving grandchildren in meal planning and cooking, and using rewards. Findings suggest that grandparents may need support with managing food preferences and navigating and negotiating complex relations with parents regarding child feeding.

Factors associated with frequent consumption of fast food among Australian secondary school students.

OBJECTIVE: To examine demographic and behavioural correlates of frequent consumption of fast food among Australian secondary school students and explore the associations between fast food consumption and social/environmental factors. DESIGN: Cross-sectional survey using a web-based self-report questionnaire. SETTING: Secondary schools across all Australian states and territories. PARTICIPANTS: Students aged 12-17 years participating in the 2012-2013 National Secondary Students' Diet and Activity survey (n 8392). RESULTS: Overall, 38 % of students surveyed reported consuming fast food at least weekly. Being male, residing in lower socio-economic areas and metropolitan locations, having more weekly spending money and working at a fast food outlet were all independently associated with consuming fast food once a week or more, as were several unhealthy eating (low vegetable intake and high sugary drink and snack food intake) and leisure (low physical activity and higher commercial television viewing) behaviours and short sleep duration. Frequent fast food consumption and measured weight status were unrelated. Students who agreed they go to fast food outlets with their family and friends were more likely to report consuming fast food at least weekly, as were those who usually 'upsize' their fast food meals and believe fast food is good value for money. CONCLUSIONS: These results suggest that frequent fast food consumption clusters with other unhealthy behaviours. Policy and educational interventions that reach identified at-risk groups are needed to reduce adolescent fast food consumption at the population level. Policies placing restrictions on the portion sizes of fast food may also help adolescents limit their intake.

Secondary school canteens in Australia: analysis of canteen menus from a repeated cross-sectional national survey.

OBJECTIVE: The current study aimed to assess the nutritional quality of Australian secondary school canteen menus. DESIGN: Stratified national samples of schools provided canteen menus in 2012-2013 and 2018, which were systematically assessed against a 'traffic light' classification system according to the National Healthy School Canteen Guidelines. Items were classified as green (healthiest and recommended to dominate canteen menus), amber (select carefully) or red (low nutritional quality, should not appear on canteen menus), and pricing and promotional strategies were recorded. SETTING: Australia. PARTICIPANTS: Canteen menus from 244 secondary schools (2012-2013 n 148, 2018 n 96). RESULTS: A total of 21 501 menu items were classified. Forty-nine percent of canteen menus contained at least 50 % green items; however, nearly all (98·5 %) offered at least one red item and therefore did not comply with national recommendations. Snacks and drinks had the least healthy profile of all product sectors, and a large proportion of schools supplied products typically of poor nutritional quality (meat pies and savoury pastries 91·8 %, sugary drinks 89·5 %, sweet baked goods 71·5 %, ice creams 64·1 % and potato chips 44·0 %). Red items were significantly cheaper than green items on average, and many schools promoted the purchase of red items on canteen menus (52·8 %). There were few differences between survey waves. CONCLUSIONS: There is considerable room for improvement in the nutritional quality of canteen menus in Australian secondary schools, including in the availability, pricing and promotion of healthier options. Additional resources and services to support implementation of national guidelines would be beneficial.

Can point-of-sale nutrition information and health warnings encourage reduced preference for sugary drinks?: An experimental study.

Point-of-sale (POS) interventions that prompt consumers to more critically evaluate sugary drinks could encourage reduced consumption of these drinks and reinforce public health campaign messages. This study tested whether: (i) POS nutrition information and health warnings about sugary drinks promote healthier drink choices and (ii) impacts of prominent POS signs on drink choices vary based on participants' self-reported prior exposure to a sugary drink public health campaign. In an online experiment, 3034 Australian adults aged 18-59 years who were past-week sugary drink consumers were randomly assigned to one of five POS signage conditions (no signage (control); sugar content of specific beverages; Health Star Rating of specific beverages; generic text health warning about sugary drinks; generic graphic health warning about sugary drinks) and shown their randomly assigned POS sign alone, then alongside a drinks product display and asked to select which drink they would choose to buy. The proportion selecting a sugary drink was significantly lower among participants who viewed either the sugar content (29%), Health Star Rating (33%) or graphic health warning (34%) signs compared to those who saw no sign (43%). These effects held for participants who did not recall previously seeing the campaign; however, for participants with self-reported prior exposure to the campaign, POS signs did not promote significant reductions in sugary drink choices. POS signage has the potential to shift consumers away from choosing sugary drinks and could complement mass media campaigns by reaching people who may not otherwise be exposed to sugary drink public health messages.

The role of grandparents as providers of food to their grandchildren.

The increasing reliance on grandparents as a source of childcare means that child dietary intake, child obesity, and child health may be increasingly influenced by grandparents' food provision. Although calls have been made for research that explores the role of grandparents in shaping children's eating behaviours, results of research assessing the types of foods provided by grandparents have been limited in focus to fruit and vegetables or energy-dense nutrient-poor foods. In addition, research assessing the determinants of food provision is lacking. Such information is important in identifying targets for education programs that aim to improve grandparents' food provision practices. Accordingly, the present study assessed the extent to which Australian grandparents are providing meals and snacks for their grandchildren, the types of foods and beverages being provided, and the determinants of provision. Grandparents providing regular childcare (i.e., ≥3 h every week) to at least one grandchild aged 3-14 years were recruited (n = 1076; 60% female; age = 65.07 years (SD = 6.68)). Results revealed that a majority of grandparents (82%) reported providing their grandchild with snacks. Nearly one-fifth (18%) of grandparents reported providing breakfast, lunch, dinner, and snacks. The provision of main meals occurred one to three times a week and snack provision occurred two to six times a week. Although grandparents generally provided a healthy food environment, practices were found to differ by the sociodemographic characteristics (sex, age, and socioeconomic status) of grandparent caregivers and by the sex and age of the grandchild in their care. Results suggest that grandparents should be considered crucial to efforts to increase healthy eating in children and address childhood obesity.

Effects of health star labelling on the healthiness of adults' fast food meal selections: An experimental study.

The addition of Health Star Rating (HSR) labelling to menus at fast food outlets is feasible, however how this would impact consumer menu selection remains unclear. The aim of this study was to test whether the addition of HSR labelling to kilojoule (kJ) labelling on menus at fast food outlets would prompt consumers to select healthier meals. Using a between-subjects experimental design, 1007 adults aged 18-49 were allocated to one of four menu labelling conditions: (i) no labelling; (ii) kilojoule labelling; (iii) HSR labelling; and (iv) kilojoule + HSR labelling. Respondents were presented with their assigned menu online and instructed to select an evening meal as they would at a fast food restaurant. The main analyses tested differences by menu labelling condition in the total mean kilojoule content and Nutrient Profiling Score (NPS) of respondents' evening meal selections using one-way ANOVA. The mean kilojoule content of meals did not differ significantly by menu labelling condition. However, respondents in the kilojoule + HSR labelling condition selected healthier meals (lower mean NPS) than those who viewed menu boards with kilojoule labelling only (M = 2.88 cf. M = 3.78, p = 0.046). In addition, in a post hoc per-protocol analysis of respondents who reported using menu labelling to assist their meal selection, respondents shown kilojoule + HSR menu labelling selected meals with a significantly lower kilojoule content compared to those shown HSR labelling only (4751 kJ cf. 5745 kJ, p = 0.038). Findings provide evidence that adding HSRs to kilojoule labelling on menu boards at fast food outlets has the potential to assist adults to make healthier evening meal selections.