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1994-2018 年美国票房最高电影中食品和饮料的营养成分分析。

Nutritional Analysis of Foods and Beverages Depicted in Top-Grossing US Movies, 1994-2018.

机构信息

Department of Psychology, Stanford University, Stanford, California.

出版信息

JAMA Intern Med. 2021 Jan 1;181(1):61-70. doi: 10.1001/jamainternmed.2020.5421.

Abstract

IMPORTANCE

Many countries now restrict advertisements for unhealthy foods. However, movies depict foods and beverages with nutritional quality that is unknown, unregulated, and underappreciated as a source of dietary influence.

OBJECTIVE

To compare nutritional content depicted in top-grossing US movies with established nutrition rating systems, dietary recommendations, and US individuals' actual consumption.

DESIGN AND SETTING

In this qualitative study, a content analysis was performed from April 2019 to May 2020 of the 250 top-grossing US movies released from 1994 to 2018.

MAIN OUTCOMES AND MEASURES

The proportion of movies with less healthy nutrition ratings using the Nutrient Profile Index, the proportion of movies with medium or high food nutrition ratings according to the United Kingdom's "traffic light" guidelines (in which green is low and indicates the healthiest foods; amber, medium; and red is high and indicates the least healthy foods), and how the movie-depicted nutritional content compared with US Food and Drug Administration-recommended daily levels and US individuals' actual consumption according to National Health and Nutrition Examination Survey 2015-2016 data. Secondary outcomes compared branded and nonbranded items and tested whether outcomes changed over time or for movies targeting youths.

RESULTS

Across 9198 foods and 5748 beverages, snacks and sweets (2173 [23.6%]) and alcoholic beverages (2303 [40.1%]) were most commonly depicted. Alcohol comprised 23 of 127 beverages (18.1%) in G-rated movies, 268 of 992 beverages (27.0%) in PG-rated movies, 1503 of 3592 beverages (41.8%) in PG-13-rated movies, and 509 of 1037 beverages (49.1%) in R-rated movies. Overall, 178 of 245 movies (72.7%) earned less healthy Nutrient Profile Index food ratings and 222 of 246 movies (90.2%) earned less healthy beverage ratings, which would be unhealthy enough to fail legal limits for advertising to youths in the United Kingdom. Among foods, most movies depicted medium or high (amber or red traffic light) levels of sugar (229 of 245 [93.5%]), saturated fat (208 of 245 [84.9%]), total fat (228 of 245 [93.1%]), and, to a lesser extent, sodium (123 of 245 [50.2%]). Only 1721 foods and beverages (11.5%) were visibly branded, but branded items received less healthy nutrition ratings than nonbranded items. Overall, movies failed recommended levels of saturated fat per 2000 kcal by 25.0% (95% CI, 20.6%-29.9%), sodium per 2000 kcal by 3.9% (95% CI, 0.2%-7.9%), and fiber per 2000 kcal by 45.1% (95% CI, 42.9%-47.0%). Movies also depicted 16.5% (95% CI, 12.3%-21.0%) higher total sugar content per 2000 kcal and 313% (95% CI, 298%-329%) higher alcohol content per 2000 kcal than US individuals consume. Neither food nor beverage nutrition scores improved over time or among movies targeting youths.

CONCLUSIONS AND RELEVANCE

This study suggests that popular US movies depict an unhealthy diet that fails national dietary recommendations, akin to US individuals' actual diets. Depicting unhealthy consumption in media is a sociocultural problem that extends beyond advertisements and branded product placements.

摘要

重要性:许多国家现在限制不健康食品的广告。然而,电影描绘了营养质量未知、不受监管且被低估的食品和饮料,这些食品和饮料是饮食影响的来源之一。

目的:比较美国票房最高的电影中描述的营养成分与既定的营养评级系统、饮食建议以及美国个人的实际消费情况。

设计和环境:在这项定性研究中,对 1994 年至 2018 年期间发布的 250 部美国票房最高的电影进行了内容分析,这些电影的发行时间从 1994 年至 2018 年。

主要结果和措施:使用营养成分指数(Nutrient Profile Index)评估电影中营养评级较低的比例,根据英国“红绿灯”指南(绿灯表示低,表明食物最健康;黄灯表示中等;红灯表示高,表明食物最不健康)评估电影中营养评级中等或较高的食品比例,以及电影中描述的营养成分与美国食品和药物管理局(Food and Drug Administration)推荐的日常摄入量以及根据 2015-2016 年全国健康和营养调查(National Health and Nutrition Examination Survey)得出的美国个人实际消费情况进行比较。次要结果比较了品牌和非品牌商品,并测试了结果是否随时间变化或针对年轻人的电影而变化。

结果:在 9198 种食品和 5748 种饮料中,零食和甜食(2173 种[23.6%])和酒精饮料(2303 种[40.1%])最常被描述。在 G 级电影中,酒精饮料占 127 种饮料中的 23 种(18.1%),PG 级电影中占 992 种饮料中的 268 种(27.0%),PG-13 级电影中占 3592 种饮料中的 1503 种(41.8%),R 级电影中占 1037 种饮料中的 509 种(49.1%)。总体而言,245 部电影中有 178 部(72.7%)的食物获得了不太健康的营养成分指数评级,246 部电影中有 222 部(90.2%)的饮料获得了不太健康的饮料评级,这足以使它们在英国对年轻人的广告宣传中被判为不健康。在食品方面,大多数电影都描绘了中等到高(琥珀色或红色)水平的糖(229 部电影中有 245 部[93.5%])、饱和脂肪(208 部电影中有 245 部[84.9%])、总脂肪(228 部电影中有 245 部[93.1%]),以及相对较少的钠(245 部电影中有 123 部[50.2%])。只有 1721 种食品和饮料(11.5%)可见品牌,但品牌商品的营养评级比非品牌商品差。总体而言,电影的饱和脂肪含量低于推荐水平,每 2000 卡路里 25.0%(95%CI,20.6%-29.9%),钠含量低于推荐水平 3.9%(95%CI,0.2%-7.9%),纤维含量低于推荐水平 45.1%(95%CI,42.9%-47.0%)。电影还描绘了 16.5%(95%CI,12.3%-21.0%)的总糖含量和 313%(95%CI,298%-329%)的酒精含量高于美国个人的摄入量。无论是食品还是饮料,营养评分都没有随着时间的推移或针对年轻人的电影而改善。

结论和相关性:本研究表明,美国流行电影描绘的饮食不健康,不符合国家饮食建议,与美国个人的实际饮食相似。在媒体中描绘不健康的消费是一个超越广告和品牌产品植入的社会文化问题。

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