Department of Health Policy and Management, Johns Hopkins Bloomberg School of Public Health, Baltimore MD, USA.
BMC Public Health. 2010 Mar 9;10:121. doi: 10.1186/1471-2458-10-121.
Calorie posting in chain restaurants has received increasing attention as a policy lever to reduce energy intake. Little research has assessed consumer understanding of overall daily energy requirements or perceived effectiveness of calorie posting.
A phone survey was conducted from May 1 through 17, 2009 with 663 randomly selected, nationally-representative adults aged 18 and older, including an oversample of Blacks and Hispanics in the United States. To examine differences in responses by race and ethnicity (White, Black, and Hispanic) and gender, we compared responses by conducting chi-squared tests for differences in proportions.
We found that most Americans were knowledgeable about energy requirements for moderately active men (78%) and women (69%), but underestimated energy requirements for inactive adults (60%). Whites had significantly higher caloric literacy and confidence about their caloric knowledge than Blacks and Hispanics (p < 0.05). As compared to their counterparts, Blacks, Hispanics and women reported a significantly higher likelihood of eating at a chain restaurant and of selecting lower calorie foods where caloric information was posted. Most Americans favored the government requiring chain restaurants to post calorie information on menus at the point of purchase (68%). Support for government mandated calorie posting in chain restaurants was significantly higher among Blacks, Hispanics and women as compared to their counterparts. The public was divided about the mode of caloric information that would best help them make a lower calorie decision; a third favored number of calories (35%) which is the current standard mode of presenting caloric information in chain restaurants, a third favored a physical activity equivalent (26%), and a third favored percentage of total energy intake (39%).
Mandating calorie posting in chain restaurants may be a useful policy tool for promoting energy balance, particularly among Blacks, Hispanics and women who have higher obesity risk.
在连锁餐厅公布卡路里含量的做法作为减少能量摄入的政策杠杆受到了越来越多的关注。但很少有研究评估消费者对总体日常能量需求的理解或对卡路里公布的感知效果。
2009 年 5 月 1 日至 17 日,通过电话对 663 名随机选择的、具有全国代表性的 18 岁及以上成年人进行了调查,其中包括美国的黑人和西班牙裔的样本量过大。为了研究种族和民族(白种人、黑人和西班牙裔)和性别差异对回答的影响,我们通过比较比例差异进行了卡方检验。
我们发现,大多数美国人都了解中度活跃男性(78%)和女性(69%)的能量需求,但低估了不活跃成年人(60%)的能量需求。白种人在卡路里知识的文化素养和信心方面明显高于黑人和西班牙裔(p<0.05)。与同龄人相比,黑人和西班牙裔以及女性表示更有可能在连锁餐厅用餐,并选择在公布卡路里信息的餐厅食用低卡路里食物。大多数美国人赞成政府要求连锁餐厅在购买点的菜单上公布卡路里信息(68%)。与他们的同龄人相比,黑人和西班牙裔以及女性对政府强制要求连锁餐厅公布卡路里信息的支持率明显更高。公众对哪种卡路里信息模式最有助于他们做出低卡路里决策存在分歧;三分之一的人赞成用卡路里数量(35%)来表示,这是目前连锁餐厅中表示卡路里信息的标准模式,三分之一的人赞成用体力活动当量(26%)来表示,三分之一的人赞成用总能量摄入的百分比(39%)来表示。
在连锁餐厅强制公布卡路里信息可能是促进能量平衡的有用政策工具,特别是在黑人、西班牙裔和女性中,他们的肥胖风险更高。