Relationship between discretionary food intake and sex, body image, health, and geographical remoteness among Indigenous Australian adolescents

Discretionary Food Consumption Patterns of Polish Schoolchildren in Relation to Anthropometric, Socio-Demographic, and Lifestyle Factors: Report from the Junior-Edu-Żywienie (JEŻ) Project

Background: Discretionary foods are not necessary for a healthy diet and are too high in saturated fat and/or added sugars, added salt, or alcohol and are low in fiber. The aim of this study was to identify patterns of discretionary food (DF) consumption in Polish adolescents in relation to anthropometric, socio-demographic, and lifestyle factors. It is important to learn about discretionary food consumption habits to identify health risks and plan strategies to reduce DF consumption. Methods: The cross-sectional study was conducted among 2849 primary school students aged 10-12 from Poland. Socio-demographic data, eating habits, lifestyle factors, and nutritional knowledge of children were assessed using questionnaires: KomPAN® and SF-FFQ4PolishChildren®. Body composition testing was performed by bioelectrical impedance analysis (BIA) using a TANITA MC-780 S MA multi-frequency segmented analyzer. Results: Four dietary patterns were identified with different frequencies of discretionary food consumption: LowDF, MediumDF, HighDF, and HighSweet pattern. Children from the LowDF and MediumDF patterns had higher BMI and body fat content than children from the HighDF and HighSweets patterns (p < 0.0001). The majority of children (68.4%) were of normal weight, 22.3% were overweight or obese, and 9.4% were underweight. Children in the LowDF and MediumDF patterns had higher body fat (24% and 23.5%, respectively) than children in the HighDF and HighSweetDF patterns (22.4% and 22.4%, respectively). Most of the children showed adherence to the MediumDF pattern, and they were mainly boys (38 vs. 32.5%). Girls predominate in LowDF, HighDF, and HighSweets patterns (33.5, 18.4, and 15.5%, respectively). Children in the LowDF and MediumDF patterns tended to be more physically active in their leisure time (OR = 1.758 (CI:1.32 2.34) p < 0.0001; OR = 1.354 (CI:1.04; 1.76) p = 0.0227) and the opposite relationship was observed in the HighDF pattern (OR = 0.495 (CI:0.38; 0.65) p < 0.0001). Children in the HighSweets pattern had low adherence to high physical activity (OR = 0.666 (CI:0.48; 0.92) p = 0.0132), but high adherence to moderate (OR = 1.29 (CI:1.01; 1.65) p = 0.0443) and high (OR = 1.54 (CI:1.04; 2.38) p = 0.0428) nutrition knowledge. Conclusions: Consumption of discretionary foods by Polish adolescents is related to body composition, socio-demographic, and lifestyle factors. Given the global emphasis on improving the daily diet, it seems necessary to implement intervention programs in Poland that would, among other things, clarify recommendations for the consumption of discretionary foods, following the example of other countries that have already achieved results in this regard. From a public health perspective, interventions to increase nutritional knowledge and improve lifestyles should be implemented with both adolescents and their parents in coordination with the school.

Association between body weight misperception and snacking patterns among adolescents: a population-based cross-sectional study

BACKGROUND

Unhealthy snacking behaviors and body weight misperception are both significant concerns in adolescent health. Weight misperception are common among youth and may influence their motivation to engage in health-related behaviors, however, the effect on snacking patterns choice remains unclear. Our study aimed to examine the relationship between body weight misperception and snacking pattern choice among school adolescents.

METHODS

A cross-sectional study was conducted using an online survey platform. Body weight misperception was defined based on perceived body weight and true weight. Snack intake was measured using a qualitative food-frequency questionnaire. Factor analysis was used to identify snacking patterns, and multiple linear regression was employed to examine the association between body weight misperception and snacking patterns.

RESULTS

190,296 students with the average age of 13.3 ± 1.0 years was included, and 44.5% of students misperceived their weight. Overestimation was more prevalent than underestimation. Two snacking patterns, namely a high-calorie snacking pattern and a healthy snacking pattern, were identified with eigenvalues > 1. Weight underestimation was positively linked to high-calorie snacking pattern scores for both normal weight students (β: 0.16, 95% CI: 0.11, 0.21) and students with overweight/obesity (β: 0.44, 95% CI: 0.35, 0.52), and to healthy snacking scores for students with overweight/obesity (β: 0.28, 95% CI: 0.22, 0.33), but negatively linked to healthy snacking pattern scores for normal weight students (β: -0.12, 95% CI: -0.15, -0.09). Conversely, weight overestimation was negatively linked to both high-calorie and healthy snacking pattern scores for normal weight students (β: -0.07, 95% CI: -0.11, -0.04 and β: -0.13, 95% CI: -0.15, -0.10), but positively linked to healthy snacking scores for underweight students (β: 0.15, 95% CI: 0.08, 0.21). Interactions were found between sex, grade, accommodation, only child, primary guardians, parental education level and weight misperception to snacking patterns.

CONCLUSIONS

Adolescents with normal weight and overweight/obesity who misperceived their weight exhibited less healthy snacking patterns, whereas underweight students who misperceived their weight displayed healthier snacking patterns. Comprehensive programs are crucial to educate and guide adolescents in understanding their weight status and making healthier snack choices, involving families, schools, and society.