Department of Psychology, University of Liverpool, Liverpool, UK.
J Hum Nutr Diet. 2021 Dec;34(6):1035-1041. doi: 10.1111/jhn.12880. Epub 2021 Apr 26.
Snacking is associated with a higher daily energy intake and dietary guidelines recommend snacks of no more than 200 kcal for adults and 100 kcal for children. The present study examines the energy content, nutritional quality and price of single-serving snack food products sold by major supermarket and coffee shop chains in the UK.
Energy content, nutritional content and price of single-serving snack products were recorded in 2019 via the websites of 14 major chains (seven supermarkets; seven coffee shops).
The mean energy content of all eligible snack products (n = 2283) was 186 kcal [95% confidence interval (CI) = 182-190]. The mean energy content of the snack products sold at coffee shops (n = 379; 282 kcal [95% CI = 269-295]) was significantly higher than the energy content of the snack products sold at supermarkets (n = 1904; 167 kcal [95% CI = 164-170]). Seventy nine % of supermarket snacks exceeded energy recommendations for children and 32% for adults. In coffee shops, 91% exceeded recommendations for children and 73% for adults. Forty one % of snacks were high in fat, 42% were high in saturated fat, 39% were high in sugar and 7% were high in salt. Cheaper snack products were more likely to be of lower nutritional quality.
The high proportion of snack products that do not meet public health recommendations for energy content may contribute to the association between snacking and increased energy intake. Public health measures to increase the availability and reduce the price of snack products that meet public health energy content recommendations may reduce population-level obesity.
吃零食与每日能量摄入较高有关,膳食指南建议成年人零食的摄入量不超过 200 千卡,儿童不超过 100 千卡。本研究检查了英国主要超市和咖啡店连锁店销售的单一份量零食产品的能量含量、营养质量和价格。
2019 年通过 14 家主要连锁店(7 家超市;7 家咖啡店)的网站记录了单一份量零食产品的能量含量、营养成分和价格。
所有合格零食产品(n=2283)的平均能量含量为 186 千卡[95%置信区间(CI)=182-190]。咖啡店销售的零食产品(n=379;282 千卡[95% CI=269-295])的平均能量含量明显高于超市销售的零食产品(n=1904;167 千卡[95% CI=164-170])。79%的超市零食超过了儿童的能量推荐摄入量,32%超过了成年人的能量推荐摄入量。在咖啡店,91%的零食超过了儿童的推荐摄入量,73%超过了成年人的推荐摄入量。41%的零食脂肪含量高,42%的饱和脂肪含量高,39%的糖含量高,7%的盐含量高。价格较低的零食产品更有可能营养质量较低。
不符合公共卫生能量含量建议的零食产品比例较高,可能导致吃零食与能量摄入增加之间存在关联。增加符合公共卫生能量含量建议的零食产品的可获得性并降低其价格的公共卫生措施,可能会降低人群肥胖率。