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60秒科学:墨西哥薄饼:就餐者常忽略其中的卡路里

时间:2011-01-19 10:33:33 来源:scientificamerican 编辑:sunny  每天三分钟英语轻松学

墨西哥风格的快餐连锁店公布其饮食中的卡路里后,就餐者的点餐风格依然未变。Karen 凯伦·霍普金报道

We Americans love our fast food. And a new study shows that a little thing like a nutrition label is not gonna stop us when we want a breakfast burrito.

In January 2009 King County, Washington imposed mandatory menu labeling on all restaurant chains in the region, which includes Seattle and its surrounds. Restaurants were asked to disclose nutrition information, including a calorie count, about every item on the menu.

Then, over the next year, researchers in conjunction with local public health officials monitored food purchases at the Taco Time chain of restaurants. And they found that nothing changed. The total number of sales and the average calories per order were the same, regardless of whether the restaurant labeled its menu. The study appears in the American Journal of Preventive Medicine. [Eric Finkelstein et al, Mandatory Menu Labeling in One Fast-Food Chain in King County, Washington]

Now, it could be that Taco Time customers were already wise to the relative nutritiousness of their meals, because the restaurant was highlighting its healthier options with a little logo before the law took effect.

So maybe all we need is a happy, "healthy icon" to keep us from overdoing it. Because pointing out that a large order of cheddar fries has 700 calories was not food for thought.

—Karen Hopkin

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