在营养文献中绘制饮食多样性的定义,措施和方法:系统范围审查的结果
Annalijn I Conklin1,2,3,4, Cristina Novakovic1, Nathanael Ip1
1Faculty of Pharmaceutical Sciences, The University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada.
Nutrition reviews
|January 27, 2026
概括
饮食多样性 (DD) 测量缺乏标准化,阻碍了营养研究. 本次审查强调,迫切需要采用一致的方法,以促进全球对健康饮食模式的理解.
科学领域:
- 营养科学 营养科学
- 公共卫生 公共卫生
- 食品科学 食品科学 食品科学
背景情况:
- 饮食多样性 (DD) 是指南中健康饮食的关键指标.
- 目前对DD的定义,操作化和测量在各个研究环境中都存在很大差异.
- 这种不一致性阻碍了比较分析和营养科学的进步.
研究的目的:
- 澄清饮食多样性 (DD) 作为健康饮食指标的概念化,操作化和测量.
- 检查现有的研究方法,并确定DD研究的改进领域.
- 为DD研究提供一个全面的国际概述.
主要方法:
- 进行了对同行评审和灰色文献的系统范围审查.
- 搜索了5个文献数据库,组织网站,并进行了手动搜索.
- 包括自1985年以来出版的关于食物多样性,DD和发达国家均衡饮食的出版物.
主要成果:
- 确定了941个符合条件的出版物,其中190个被随机抽样用于数据提取.
- 发现了322个不同的DD测量,定义,分数和包括食品组在内的差异很大.
- 整体饮食DD测量 (n=208) 是常见的,但不到一半被验证;自2010年以来,集团内部多样性测量 (n=114) 增加了.
结论:
- 在营养文献中,饮食多样性 (DD) 的定义和测量方法存在实质性的异质性.
- 目前DD测量缺乏标准化,这给研究和基于证据的建议带来了挑战.
- 迫切需要对DD研究方法进行标准化,以在全球范围内推进营养和食品科学.
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