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当孩子们在零食中进行选择时,他们会选择不健康的选项。

Children select unhealthy choices when given a choice among snack offerings.

作者信息

Beets Michael W, Tilley Falon, Kyryliuk Rebecca, Weaver Robert G, Moore Justin B, Turner-McGrievy Gabrielle

出版信息

J Acad Nutr Diet. 2014 Sep;114(9):1440-6. doi: 10.1016/j.jand.2014.04.022. Epub 2014 Jun 14.

Abstract

Out-of-school-time programs serve snacks to millions of children annually. State and national snack policies endorse serving more-healthful options, such as fruits, yet often allow less-healthful options, such as cookies and chips, to be served simultaneously. To date, no studies have examined the choices children make when provided with disparate snack options in out-of-school-time programs. An experimental study with randomized exposures was conducted that exposed children (5 to 10 years old) to the following conditions: whole or sliced fruit; whole/sliced fruit, sugar-sweetened snacks (eg, cookies) and flavored salty (eg, nacho cheese-flavored tortilla chips) snacks; and whole/sliced fruit and less-processed/unflavored grain snacks (eg, pretzels), during a 2-week period representing 18 snack occasions (morning and afternoon) during summer 2013. The percentage of children who selected snacks, snack consumption, and percent of serving wasted were calculated and analyzed using repeated-measures analyses of variance with Bonferroni adjustments. A total of 1,053 observations were made. Sliced fruit was selected more than whole fruit across all conditions. Fruit (sliced or whole) was seldom selected when served simultaneously with sugar-sweetened (6% vs 58%) and flavored salty (6% vs 38%) snacks or unflavored grain snacks (23% vs 64%). More children consumed 100% of the sugar-sweetened (89%) and flavored salty (82%) snacks compared with fruit (71%); 100% consumption was comparable between fruit (59%) and unflavored grain snacks (49%). Approximately 15% to 47% of fruit was wasted, compared with 8% to 38% of sugar-sweetened, flavored salty, and unflavored grain snacks. Snack policies that encourage out-of-school-time programs to serve fruit require clear language that limits offering less-healthful snack options simultaneously.

摘要

校外活动项目每年为数百万儿童提供零食。州和国家的零食政策支持提供更健康的选择,如水果,但通常也允许同时提供不太健康的选择,如饼干和薯片。迄今为止,尚无研究考察儿童在参与校外活动项目时面对不同零食选择时会做出何种选择。我们进行了一项随机暴露的实验研究,让5至10岁的儿童在2013年夏季为期2周的时间里(代表18次零食供应时段,包括上午和下午),分别处于以下几种情境:提供完整水果或切片水果;提供完整/切片水果、含糖零食(如饼干)和调味咸味零食(如玉米片味玉米饼薯片);提供完整/切片水果和加工较少/无调味的谷物零食(如椒盐脆饼)。通过重复测量方差分析并进行邦费罗尼校正,计算并分析了选择零食的儿童百分比、零食摄入量以及食物浪费百分比。共进行了1053次观察。在所有情境中,切片水果的选择率都高于完整水果。当水果(切片或完整)与含糖零食(6%对58%)、调味咸味零食(6%对38%)或无调味谷物零食(23%对64%)同时提供时,很少被选中。与水果(71%)相比,更多儿童吃完了100%的含糖零食(89%)和调味咸味零食(82%);水果(59%)和无调味谷物零食(49%)的100%摄入量相当。水果的浪费率约为15%至47%,而含糖、调味咸味和无调味谷物零食的浪费率为8%至38%。鼓励校外活动项目提供水果的零食政策需要明确措辞,限制同时提供不太健康的零食选择。

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