RESUMEN
This study aimed to determine whether pupils who have breakfast just before a cognitive demand, do not regularly skip breakfast, and consume a high-quality breakfast present higher cognitive performance than those who do not; furthermore, to establish differences according to their nutritional status. In this study, 1181 Chilean adolescents aged 10-14 years participated. A global cognitive score was computed through eight tasks, and the body mass index z-score (BMIz) was calculated using a growth reference for school-aged adolescents. The characteristics of breakfast were self-reported. Analyses of covariance were performed to determine differences in cognitive performance according to BMIz groups adjusted to sex, peak height velocity, physical fitness global score, and their schools. A positive association was found in adolescents' cognitive performance when they had breakfast just before cognitive tasks, did not regularly skip breakfast, presented at least two breakfast quality components, and included dairy products. No significant differences were found between breakfast components, including cereal/bread and fruits/fruit juice. Finally, pupils who were overweight/obese who declared that they skipped breakfast regularly presented a lower cognitive performance than their normal-BMIz peers. These findings suggest that adolescents who have breakfast just prior to a cognitive demand and regularly have a high quality breakfast have better cognitive performance than those who do not. Educative nutritional strategies should be prioritized, especially in "breakfast skippers" adolescents living with overweight/obesity.
Asunto(s)
Desayuno/psicología , Cognición , Conducta Alimentaria/psicología , Estado Nutricional , Estudiantes/psicología , Adolescente , Fenómenos Fisiológicos Nutricionales de los Adolescentes , Análisis de Varianza , Índice de Masa Corporal , Niño , Chile , Estudios Transversales , Femenino , Humanos , Masculino , Obesidad Infantil/psicología , Análisis y Desempeño de TareasRESUMEN
OBJECTIVE: This study evaluated the influence of family meal frequency on the occurrence of common mental disorders (CMD) in children and adolescents over eight months of follow-up. DESIGN: Data from this longitudinal study were derived from the PAAPAS-Parents, Students, Community Health Agents, and Teachers for Healthy Eating-community trial. CMD were evaluated using the General Health Questionnaire. Frequency of family meals (breakfast and dinner) was categorized as "breakfast and dinner regularly with the family", "at least breakfast or dinner regularly with the family", and "does not have any meal regularly with the family." The effect of family meal frequency on CMD was analyzed using generalized estimation equations with log-binomial models for repeated measures. SETTING: This study was conducted in public schools (N = 18) of Duque de Caxias, Rio de Janeiro, Brazil, in 2016. PARTICIPANTS: Children (aged 9-11 years) and adolescents (aged 12-17 years) from the fifth and sixth grades (N = 2,743). RESULTS: These findings suggested that regular family meals were a protective factor for mental health. The adjusted relative risk of CMD was 0.75 (95% confidence interval = 0.69-0.83) for those who had two family meals regularly and 0.87 (95% confidence interval = 0.77-0.97) for those who had only one regular family meal, compared to students who had no regular family meals. CONCLUSIONS: Potential strategies that educate and encourage families about the mental health benefits of eating regular meals together must be explored and implemented.
Asunto(s)
Dieta Saludable/psicología , Conducta Alimentaria/fisiología , Conducta Alimentaria/psicología , Comidas/fisiología , Comidas/psicología , Trastornos Mentales/etiología , Trastornos Mentales/psicología , Adolescente , Brasil , Desayuno/fisiología , Desayuno/psicología , Niño , Dieta/psicología , Familia/psicología , Femenino , Estudios de Seguimiento , Humanos , Estudios Longitudinales , Masculino , Padres/psicología , Instituciones Académicas , Estudiantes/psicologíaRESUMEN
Skipping breakfast might have an impact on cognitive functions, such as interference, which is a basic capacity of executive functions that denotes the possibility of controlling an automated response. This study aimed to analyze the association between nutritional quality of breakfast and cognitive interference in a sample of university students. A cross-sectional study was conducted, a total of 422 students between 18 and 25 years participated. Cognitive interference was assessed with the Stroop Test. Breakfast was assessed with a questionnaire assigning a score for each serving of each food group that was consumed. Logistic regression models were performed. The performance in cognitive tasks was slower in those who had a poor breakfast (32.9 ± 6 vs 29.3 ± 6 s, p < 0.050). Poor cognitive interference was greater in students with poor breakfast (53% versus 23%, p = 0.001). A slower word reading was associated with skipping vegetables (OR: 2.78, 95% CI: 0.09-2.13), and cereals (OR: 1.70, 95% CI: 1.03-2.81). Wrong color identification was associated with skipping fruits (OR: 1.55, 95% CI: 1.43-1.99) and animal protein sources (OR: 1.63, 95% CI: 1.07-2.49). Skipping fat-rich cereals was a protector factor (OR: 0.55, 95% CI: 0.36-0.85). Difficulty in the ability to inhibit interference was associated with skipping vegetables (OR: 2.72, 95% CI: 1.25-4.80) and cereals (OR: 2.65, 95% CI: 1.28-4.68). The nutritional quality of breakfast was associated with the time spent answering the Stroop test, but not with cognitive interference.
Asunto(s)
Desayuno/psicología , Cognición , Función Ejecutiva , Conducta Alimentaria/psicología , Valor Nutritivo , Estudiantes/psicología , Adolescente , Adulto , Estudios Transversales , Encuestas sobre Dietas , Grano Comestible , Femenino , Frutas , Humanos , Modelos Logísticos , Masculino , México , Universidades , Salud Urbana , Verduras , Adulto JovenRESUMEN
OBJECTIVES: Food marketing has been implicated as an important driver of obesity. However, few studies have examined food marketing in low- and middle-income countries (LMICs). This study documents the prevalence of advertising on cereal boxes in Guatemala and examines associations between various marketing strategies and nutritional quality. METHODS: One box from all available cereals was purchased from a supermarket located in an urban area in Guatemala City, Guatemala. A content analysis was performed to document child-oriented marketing practices, product claims and health-evoking images. The Nutrient Profile Model (NPM) was used to calculate an overall nutrition score for each cereal (the higher the score, the lower the nutritional quality). RESULTS: In all, 106 cereals were purchased, and half of the cereals featured child-oriented marketing (54, 50.9%). Cereals had a mean (±s.d.) of 5.10±2.83 product claims per cereal, and most cereals (102, 96.2%) contained health-evoking images. Child-oriented cereals had, on average, higher NPM scores (13.0±0.55 versus 7.90±0.74, P<0.001) and sugar content (10.1±0.48 versus 6.19±0.50 g/30 g, P<0.001) compared with non-child oriented cereals. Cereals with health claims were not significantly healthier than those without claims. CONCLUSIONS: In Guatemala, cereals targeting children were generally of poor nutritional quality. Cereals displaying health claims were also not healthier than those without such claims. Our findings support the need for regulations restricting the use of child-oriented marketing and health claims for certain products.