Division of Risk Assessment and Nutrition, National Food Institute, Technical University of Denmark, DK-2800 Lyngby, Denmark.
Research Group for Bioactives-Analysis and Application, National Food Institute, Technical University of Denmark, DK-2800 Lyngby, Denmark.
Nutrients. 2018 Oct 16;10(10):1518. doi: 10.3390/nu10101518.
Monitoring the nutritional environment is important to help inform future initiatives to improve access to healthy foods. The objective was to examine the nutritional quality of lunch meals eaten at 15 worksite canteens and then to compare with results from a study conducted 10 years before. The duplicate-portion-technique with subsequent chemical analysis was used to quantify 240 customers' lunch intake. Estimated mean energy intake was 2.1 MJ/meal (95% confidence interval (CI): 1.9 to 2.4 g/meal) and estimated energy density 599 kJ/100 g (95% CI 550 to 653 kJ/100 g). Energy density of the male participants' meals were significantly higher compared with the female participants' meals (+55 kJ/100 g, 95% CI: +12 to +98 kJ/100 g, = 0.012), whereas no gender differences were found in macronutrient distribution or fruit and vegetable intake. Compared to the study conducted 10 years before several significant changes were observed, including an increase in mean estimated intake of fruit and vegetables (+38 g/meal, 95% CI: 19 to 57 g/meal, < 0.001) and a decrease in energy density (-76 kJ/100 g, 95% CI: -115, -37 kJ/100 g, < 0.001). In conclusion, this study suggests an equalization of gender differences in fruit and vegetable intake and a possible improvement in the nutritional quality of canteen lunch meals over a 10-year period.
监测营养环境对于帮助制定未来改善健康食品获取途径的举措非常重要。本研究旨在检测 15 家工作场所食堂午餐的营养质量,并与 10 年前的研究结果进行比较。使用双份餐法和随后的化学分析来量化 240 名顾客的午餐摄入量。估计的平均能量摄入量为 2.1 MJ/餐(95%置信区间(CI):1.9-2.4 g/餐),估计的能量密度为 599 kJ/100 g(95%CI:550-653 kJ/100 g)。与女性参与者相比,男性参与者的餐食能量密度明显更高(+55 kJ/100 g,95%CI:+12-+98 kJ/100 g, = 0.012),而在宏量营养素分布或水果和蔬菜摄入量方面,性别差异不明显。与 10 年前的研究相比,观察到了几个显著的变化,包括估计的水果和蔬菜摄入量平均增加(+38 g/餐,95%CI:19-57 g/餐, < 0.001),以及能量密度降低(-76 kJ/100 g,95%CI:-115,-37 kJ/100 g, < 0.001)。综上所述,本研究表明,在 10 年期间,食堂午餐中水果和蔬菜摄入量的性别差异均衡化,营养质量可能得到改善。