Across 7 studies, food restrictions increased loneliness by limiting the ability to bond with others through similar food consumption. We first found that food restrictions predict loneliness using observer- and self-reports among children and adults (Studies 1-3). Next, we found mediation by the experience of worry and moderation by eating similar food as others. When restricted individuals were unable to bond over a meal (i.e., they ate different vs. the same food as others), they worried. These "food worries" mediated the effect of restrictions on loneliness (Studies 4 and 5). Moving to controlled experiments, manipulating the presence of a food restriction for unrestricted individuals increased reported loneliness (Study 6). This effect replicated in an experiment that capitalized on a naturally occurring food restriction-the holiday of Passover-where Jewish observers were restricted from eating chametz (leavened food; Study 7). Overall, while both food restrictions and loneliness are on the rise; this research found they may be related epidemics. (PsycINFO Database Record (c) 2019 APA, all rights reserved).

中文翻译：

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食物限制和社会孤立的经验。

在7项研究中，食物限制通过限制通过类似食物消费与他人建立联系的能力而增加了孤独感。我们首先发现食物限制可以通过观察者和成年人的自我报告来预测孤独感（研究1-3）。接下来，我们通过进食与他人相似的食物而感到忧虑和节制，从而发现了调解。当受限制的人无法吃饱饭时（即他们吃的食物与其他人的食物不同或相同），他们会担心。这些“食物上的烦恼”介导了对孤独感的限制（研究4和5）。转向对照实验，为不受限制的个体控制食物限制的存在会增加报道的孤独感（研究6）。这种影响在一项实验中得到了复制，该实验利用了自然发生的食物限制（逾越节假期），犹太观察员被禁止吃沙米斯（发酵食品；研究7）。总体而言，尽管食物限制和孤独感都在增加；这项研究发现它们可能与流行病有关。（PsycINFO数据库记录（c）2019 APA，保留所有权利）。