| Autor: |
Neilson LJ; School of Food and Nutritional Sciences, Brescia University College at Western University, 1285 Western Road, London, ON N6G 1H2, Canada., Macaskill LA; School of Food and Nutritional Sciences, Brescia University College at Western University, 1285 Western Road, London, ON N6G 1H2, Canada., Luk JMH; School of Food and Nutritional Sciences, Brescia University College at Western University, 1285 Western Road, London, ON N6G 1H2, Canada., Sharma N; School of Food and Nutritional Sciences, Brescia University College at Western University, 1285 Western Road, London, ON N6G 1H2, Canada., Salvadori MI; Department of Pediatrics, Faculty of Medicine and Health Sciences, McGill University, 1001 Decarie Boulevard, Montreal, QC H4A 3J1, Canada., Seabrook JA; School of Food and Nutritional Sciences, Brescia University College at Western University, 1285 Western Road, London, ON N6G 1H2, Canada.; Department of Paediatrics, Schulich School of Medicine and Dentistry, Western University, 1151 Richmond Street, London, ON N6A 3K7, Canada.; Department of Epidemiology and Biostatistics, Western University, 1151 Richmond Street, London, ON N6A 3K7, Canada.; Human Environments Analysis Laboratory, Faculty of Social Science, Western University, 1151 Richmond Street, London, ON N6A 3K7, Canada.; Children's Health Research Institute, 800 Commissioners Road East, London, ON N6C 2V5, Canada.; Lawson Health Research Institute, 750 Base Line Road East, Suite 300, London, ON N6C 2R5, Canada., Dworatzek PDN; School of Food and Nutritional Sciences, Brescia University College at Western University, 1285 Western Road, London, ON N6G 1H2, Canada.; Schulich Interfaculty Program in Public Health, Schulich School of Medicine & Dentistry, Western University, 1465 Richmond Street, London, ON N6G 2M1, Canada. |
| Abstrakt: |
This study compared the caloric and nutrient values of packed lunch contents and consumption in the Balanced School Day (BSD) (two 20 min eating periods) versus the Traditional Schedule (TS) (one 20 min lunch). Foods consumed during school were assessed by direct food observation in 321 grade 3 and 4 students, aged 7−10 years, at 9 BSD and 10 TS elementary schools in Ontario. Packed lunch contents in the BSD were significantly higher than the TS in energy (3128.14 ± 1100.36 vs. 2658.98 ± 951.34 kJ, p < 0.001, respectively). Similarly, carbohydrates, total sugar, protein, fat, saturated fatty acids (SFA), calcium, iron, and sodium were significantly higher in the BSD versus TS packed lunches. Correspondingly, students in the BSD consumed significantly more energy, carbohydrates, total sugar, and SFA compared to the TS. Overall, lunches brought by students in the BSD schedule provided more energy across all macronutrients, with only a few micronutrients showing increased amounts, suggesting two 20 min eating opportunities could contribute to excess caloric intake during school, potentially contributing to the prevalence of childhood overweight and obesity in Canada. Furthermore, packed lunches in both schedules had excess amounts of nutrients of concern and much work is needed to ensure that children in Canada receive nutritious lunches at school. |
