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英文文献：Food Away From Home: How much does it really influence diet quality?-离家在外的食物:它对饮食质量的影响有多大?这项研究证实了在远离家的地方吃食物(FAFH)会对饮食摄入量产生不利影响
英文文献作者：Mancino, Lisa,Todd, Jessica E.,Lin, Biing-Hwan
英文文献摘要：
This study confirms that eating food away from home (FAFH) adversely affects dietary intake. By looking at changes within individuals’ dietary intake over two days, thus controlling for self-selection issues, we find that FAFH causes increased caloric intake and reduced diet quality. Our estimates on the effect of specific meals show that lunch and dinner consumed away from home have the largest effect on total daily caloric intake, but that breakfast has the largest negative effect on total diet quality. In particular, eating breakfast away from home decreases intake of fruit, whole grains and dairy and increases the percent of calories from saturated fats and solid fats, alcohol and added sugar. Eating lunch and dinner away from home also reduce diet quality, affecting similar dietary components, with dinner away from home also reducing vegetable intake. Unlike past studies based on correlation analyses, this study shows how FAFH can have a causal impact on weight gain.
通过观察个人两天内饮食摄入量的变化，从而控制自我选择的问题，我们发现FAFH导致热量摄入增加和饮食质量下降。我们对特定膳食影响的估计显示，外出就餐的午餐和晚餐对每日热量摄入的影响最大，但早餐对总体膳食质量的负面影响最大。特别是，在不在家吃早餐会减少水果、全谷物和奶制品的摄入量，增加来自饱和脂肪、固体脂肪、酒精和添加糖的卡路里含量。不在家吃午餐和晚餐也会降低饮食质量，影响类似的饮食成分，不在家吃晚餐也会减少蔬菜的摄入量。与以往基于相关性分析的研究不同，这项研究显示了FAFH如何对体重增加产生因果关系。
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