Olsson Cecilia, Hörnell Agneta, Waling Maria
Department of Food, Nutrition and Culinary Science, Umeå University, Umeå, Sweden.
Food Nutr Res. 2023 Jul 19;67. doi: 10.29219/fnr.v67.9405. eCollection 2023.
An increased intake of vegetable and fruit (VF) through school meals can contribute to the prevention of non-communicable diseases.
The purpose of this study was to investigate what types of VF 4th grade pupils (10-11 years old) choose, how much they eat when they are given the opportunity to serve themselves from the daily vegetable buffet available at lunch, and whether this varies with socioeconomic background and gender.
A cross-sectional study design was used where pupils' VF intake was measured during 5 days with a photographic method. In total, 196 pupils from nine public schools participated.
The results show that pupils on average ate less than one type of VF per day from the vegetable buffet. Girls, pupils with a higher socio-economic status (SES) and those with a more frequent VF intake at home, ate more types of VF per day from the vegetable buffet than their counterparts. The median intake of VF from the vegetable buffet was generally low, 20.4 g/day. The intake was two thirds higher for pupils with higher SES in comparison with pupils with lower SES; 25 g/day versus14 g/day ( = 0.001). No gender differences in grams per day of VF were identified ( = 0.123).
This study indicates that a well-stocked vegetable buffet as part of government-funded school lunch does not automatically contribute substantially to the recommended daily intake of VF among a sample of 4th grade pupils in a high-income country like Sweden.
The results of the study can be interpreted as a missed opportunity to increase the intentional consumption of VF among pupils in a way that would have implications for public health as well as attenuating differences between socioeconomic groups.
通过学校餐食增加蔬菜和水果(VF)的摄入量有助于预防非传染性疾病。
本研究旨在调查四年级学生(10 - 11岁)选择何种类型的VF,当他们有机会从午餐时提供的每日蔬菜自助中自行取用食物时会吃多少,以及这是否因社会经济背景和性别而异。
采用横断面研究设计,通过摄影方法在5天内测量学生的VF摄入量。共有来自9所公立学校的196名学生参与。
结果显示,学生平均每天从蔬菜自助中食用的VF种类少于一种。女孩、社会经济地位(SES)较高的学生以及在家中更频繁摄入VF的学生,每天从蔬菜自助中食用的VF种类比其他学生更多。从蔬菜自助中摄入的VF中位数普遍较低,为20.4克/天。SES较高的学生的摄入量比SES较低的学生高约三分之二;分别为25克/天和14克/天(P = 0.001)。未发现VF每日摄入量在性别上存在差异(P = 0.123)。
本研究表明,在瑞典这样的高收入国家,作为政府资助的学校午餐一部分的储备充足的蔬菜自助,并不会自动大幅增加四年级学生样本中推荐的每日VF摄入量。
该研究结果可被解释为错失了一个机会,未能以对公众健康有影响以及缩小社会经济群体之间差异的方式,增加学生对VF的有意消费。