School of Epidemiology and Public Health, Faculty of Medicine, University of Ottawa, Ontario, Canada.
School of Interdisciplinary Health Sciences, Faculty of Health Sciences, University of Ottawa, Ontario, Canada.
J Nutr. 2023 Jan;153(1):268-278. doi: 10.1016/j.tjnut.2022.09.002. Epub 2022 Dec 21.
Food marketing can influence children's dietary behaviors. In Canada, Quebec banned commercial advertising to children under the age of 13 y in 1980, whereas advertising to children is self-regulated by industry in the rest of the country.
The objective of this study was to compare the extent and power of food and beverage advertising on television to children (age: 2-11 y) in two different policy environments (Ontario and Quebec).
Advertising data for 57 selected food and beverage categories were licensed from Numerator for Toronto and Montreal (English and French markets) from January to December 2019. The 10 most popular stations for children (age: 2-11 y) and a subset of child-appealing stations were examined. Exposure to food advertisements (ads) was based on gross rating points. A content analysis of food ads was conducted, and the healthfulness of ads was assessed using Health Canada's proposed nutrient profile model. Descriptive statistics were tabulated for the frequency of and exposure to ads.
On average, children were exposed to 3.7 to 4.4 food and beverage ads per day, exposure to fast-food advertising was highest (670.7-550.6 ads per year), advertising techniques were used frequently, and the majority (>90%) of advertised products were classified as unhealthy. On the top 10 stations, French children in Montreal were most exposed to unhealthy food and beverage advertising (712.3 ads per year), although they were exposed to fewer child-appealing advertising techniques compared with those in other markets. On the child-appealing stations, French children in Montreal were least exposed to food and beverage advertising (43.6 ads per year per station) and child-appealing advertising techniques compared with the other groups.
The Consumer Protection Act appears to positively impact exposure to child-appealing stations; yet, it does not sufficiently protect all children in Quebec and requires strengthening. Federal-level regulations restricting unhealthy advertising are needed to protect children across Canada.
食品营销会影响儿童的饮食行为。1980 年,加拿大魁北克省禁止向 13 岁以下儿童投放商业广告,而在该国其他地区,广告则由行业自行监管。
本研究旨在比较两种不同政策环境(安大略省和魁北克省)下电视食品和饮料广告对儿童(2-11 岁)的影响程度和力度。
从 Numerator 公司获得了 2019 年 1 月至 12 月多伦多和蒙特利尔(英语和法语市场)57 种选定食品和饮料类别的广告数据。研究人员对 10 个最受儿童(2-11 岁)欢迎的电视台以及部分儿童喜爱的电视台进行了调查。广告暴露量基于总收视率点。对食品广告进行了内容分析,并使用加拿大卫生部提出的营养成分模型评估广告的健康程度。对广告的频率和暴露量进行了描述性统计。
平均而言,儿童每天接触 3.7 到 4.4 个食品和饮料广告,快餐广告的接触量最高(每年 670.7-550.6 个广告),广告技术经常被使用,而且大多数(>90%)广告产品被归类为不健康食品。在排名前十的电视台中,蒙特利尔的法语儿童接触到的不健康食品和饮料广告最多(每年 712.3 个广告),尽管他们接触到的吸引儿童的广告技术比其他市场的儿童少。在吸引儿童的电视台中,与其他群体相比,蒙特利尔的法语儿童接触到的食品和饮料广告(每年每个电视台 43.6 个广告)和吸引儿童的广告技术最少。
《消费者保护法》似乎对接触吸引儿童的电视台产生了积极影响;然而,它并没有充分保护魁北克省的所有儿童,需要加强。需要制定联邦级别的法规来限制不健康广告,以保护加拿大各地的儿童。