To identify correlates and underlying beliefs regarding the adolescents’ intention to abstain from consuming sugar-sweetened beverages (SSB) and the consumption of ≤1 daily portion of SSB.

Correlational study.

Region of Chaudière-Appalaches in the province of Quebec, Canada.

311 adolescents aged 13–18 years completed a self-administrated online questionnaire based on the Reasoned Action Approach. Frequency and quantity of different types of SSB within the past month were measured.

Total mean SSB intake was 882·6 ml/d (654·0 kJ/d ). Only 11·3 % abstained from SSB within the last month. Intention to abstain from SSB was explained by identification as SSB abstainers (β = 0·47), perceived norm (β = 0·32), attitude (β = 0·30), age 13–14 years (β = –0·27) and perception of the school environment (β = 0·14), which explained 66 % of the variance. Consumption of ≤1 daily portion of SSB was explained by the intention to abstain (OR = 1·55; 95 % CI 1·14, 2·11), perceived behavioural control to abstain (OR = 1·80; 95 % CI 1·29, 2·52), sex (girls v. boys: OR = 2·34; 95 % CI 1·37, 3·98) and socio-economic status (advantaged v. disadvantaged school: OR = 2·08; 95 % CI 1·21, 3·56). Underlying beliefs (i.e. more energy, decreased risk of addiction and friends’ approval) associated with intention as well as perceived barriers (e.g. access to SSB, after an activity that makes you thirsty), and facilitating factors (e.g. access to water) linked to SSB consumption were identified.

The results can inform public health interventions to decrease SSB consumption and their associated health problems among adolescents.

Despite the benefits of fruit and vegetable intake, many young Americans do not consume them at adequate levels. The present study sought to determine the beliefs that children have about asking their parents to have fruits and vegetables available at home in order to better understand the role children may play in influencing their own fruit and vegetable consumption.

An instrument utilizing the Reasoned Action Approach, with closed-ended questions on demographic and behavioural variables and open-ended questions eliciting the belief structure underlying asking parents to make fruits and vegetables available, was distributed. Thematic and frequency analyses were performed for open-ended questions. Statistical analyses were conducted to assess differences between children who had v. had not asked for fruits and vegetables.

Three middle schools in rural Indiana, USA.

A sub-sample of sixty students aged 12–15 years from a larger study of 344 students.

Qualitative analysis identified benefits (i.e. make me healthier; make parents happy), disadvantages (i.e. will upset my parents) and strategies (i.e. asking when you are at the store) that could be used to improve fruit and vegetable intake. Findings also revealed that students who asked their parents for fruits and vegetables were significantly more likely to perform several healthy eating and physical activity behaviours.

Data suggest that young people's view of parental reactions is critical. While additional research is necessary, the findings support a role for children in shaping their own environment and suggest multilevel interventions that simultaneously address parents and children.