Behavioural Science Institute, Radboud University; P.O. Box 9104, 6500 HE Nijmegen, The Netherlands.
Nutrients. 2020 Mar 17;12(3):786. doi: 10.3390/nu12030786.
Both mothers' and best friends' food intake are associated with adolescents' food intake, but they are rarely investigated simultaneously. In this study, we tested the associations of mothers' and best friends' food intake with adolescents' intake of unhealthy and healthy food, obtained from home and from outside the home, and the moderating role of adolescents' exposure to their food intake. Participants included 667 adolescents (53% female, = 12.9) and 396 of their mothers. Within this adolescent sample, 378 best friend dyads were identified. All participants completed food frequency questionnaires. Mothers separately reported on their food intake in the presence and absence of their child, and adolescents indicated how often they ate and drank together with their best friend during school breaks. Mothers', but not best friends', food intake was positively related to adolescents' intake of unhealthy and healthy food obtained from home and healthy food obtained from outside the home. Exposure to mothers' healthy food intake magnified mother-child similarities in healthy food intake. Exposure to best friends' intake of unhealthy food moderated adolescent-friend similarities in unhealthy food intake. Future work should assess the mechanisms that underlie these similarities, and should investigate these associations over time and in later developmental periods.
母亲和最好朋友的食物摄入量均与青少年的食物摄入量相关，但很少同时对其进行研究。在本研究中，我们测试了母亲和最好朋友的食物摄入量与青少年在家中和家外摄入的不健康和健康食物之间的关联，以及青少年对其食物摄入量的暴露程度的调节作用。参与者包括 667 名青少年（53%为女性， = 12.9）和 396 名母亲。在这个青少年样本中，确定了 378 对最好朋友的配对。所有参与者都完成了食物频率问卷。母亲分别在有和没有孩子在场的情况下报告了自己的食物摄入量，青少年则报告了在学校休息期间与最好的朋友一起吃饭和喝饮料的频率。母亲的食物摄入量，而不是最好朋友的食物摄入量，与青少年在家中摄入的不健康和健康食物以及在外面摄入的健康食物摄入量呈正相关。对母亲健康食物摄入量的暴露程度增加了母子之间健康食物摄入量的相似性。对最好朋友摄入不健康食物的暴露程度调节了青少年与朋友之间摄入不健康食物的相似性。未来的工作应该评估这些相似性背后的机制，并应该随着时间的推移和在以后的发展阶段研究这些关联。
