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Food Item Sequence Affects Estimates of Calorie Content

Dieters may try to estimate a meal’s calorie count. Now a study by Northwestern University’s Alexander Chernev finds that Even the order in which food is presented—and whether the food is thought of as a vice or a virtue—affects how many calories we think it has. The work will be published in 2011 in the Journal of Consumer Research. [Zl9tR]

减肥的人有可能会估算下一顿饭热量有多高。美国西北大学的亚历山大·雪内夫日前的一项研究结果显示，即使是饮食顺序不同——主食、副食顺序不同——也会影响人们对食物热量的判断。这项研究报告将会刊登在2011年的《消费者研究》上。

Study subjects were shown a cheese-steak first, which they guessed had on average 578 calories. Or they saw a virtuous fruit salad first, which they guessed was 311 calories. After which they estimated the same cheese-steak as having 787 calories.

研究人员先给实验对象上了一道奶酪牛排，实验对象估算这牛排平均约含578卡路里的热量。如果先上一道健康味美的水果沙拉，那他们会先估算沙拉的热量：311卡路里，这时候再把牛排端上来，那同样一份奶酪牛排的估算热量就飙升到787卡路里了。

But when first shown the vice of a slice of chocolate cake, which they guessed had 416 calories, subjects estimated that the same cheese-steak wasn’t much worse of a vice, at only 489 calories. So estimates of the cheese-steak calorie content went up when it followed fruit salad, but went down when subjects first considered a slice of cake.

要是先来一道甜品 ——一小块巧克力蛋糕，实验对象估计其热量约为416卡路里，他们会觉得一份奶酪牛排的热量不会比这道甜品多多少，于是估算出来牛排的热量只有489卡路里。综上所述，在水果沙拉之后上牛排，其估算热量值就会飙升；但在蛋糕之后上牛排，其估算热量值就降低了。

An absurd outcome of this was that subjects estimated a cheesesteak and cake combo as having fewer calories than a fruit salad-cheesesteak one. So remember, when you’re counting calories, you really can’t rely on gut feelings.

荒谬的是，奶酪牛排和蛋糕组合的热量值估算出来居然要比奶酪牛排和水果沙拉组合的要低……（囧。。。）所以吧，估算食物热量的时候，凭感觉是不行滴~~

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