EPA 和 DHA——蛋白质，不是脂肪，才是“关键所在”？

EPA and DHA--protein, not fat is "where it's at"?

机构信息

Department of Kinesiology, University of Waterloo, Waterloo, ON, Canada N2L 3G1.

出版信息

Prostaglandins Leukot Essent Fatty Acids. 2012 Jul;87(1):49-51. doi: 10.1016/j.plefa.2012.05.002. Epub 2012 Jun 4.

DOI:10.1016/j.plefa.2012.05.002

Abstract

Guidelines and recommendations for the dietary intake of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) are topics of debate. Recently, EPA and DHA intakes have been demonstrated to be associated with dietary protein intakes and not dietary fat intakes that are distinct from α-linolenic acid. We presently confirm these observations in a secondary analysis of baseline dietary intake data for the validation of a food frequency questionnaire (n=99). DHA intakes measured by both 3 d dietary record and food frequency questionnaire and EPA intakes measured by food frequency questionnaire were positively correlated with protein intakes. EPA and DHA were not associated with fat intakes in either assessment, while ?-linolenic acid was positively correlated with fat intakes. Future recommendations regarding the intake of omega-3 polyunsaturated fatty acids, and EPA and DHA specifically, should consider these associations that provide insight on dietary sources of EPA and DHA in the food supply.

摘要

二十碳五烯酸（EPA）和二十二碳六烯酸（DHA）的饮食摄入量指南和建议是有争议的话题。最近，已经证明 EPA 和 DHA 的摄入量与饮食中的蛋白质摄入量有关，而不是与 α-亚麻酸不同的饮食脂肪摄入量有关。我们目前在验证食物频率问卷（n=99）的基线饮食摄入数据的二次分析中证实了这些观察结果。通过 3 天饮食记录和食物频率问卷测量的 DHA 摄入量以及通过食物频率问卷测量的 EPA 摄入量与蛋白质摄入量呈正相关。在这两种评估中，EPA 和 DHA 与脂肪摄入量均无关联，而 α-亚麻酸与脂肪摄入量呈正相关。关于摄入欧米伽-3 多不饱和脂肪酸，以及 EPA 和 DHA 具体摄入量的未来建议，应考虑这些关联，这些关联提供了有关食物供应中 EPA 和 DHA 的饮食来源的信息。