饮食质量是不是很重要? 一个随机临床试验的二次分析
Hana Kahleova1, Haley Brennan2, Tatiana Znayenko-Miller2
1Physicians Committee for Responsible Medicine, Washington, DC, USA. hkahelova@pcrm.org.
European journal of clinical nutrition
|November 27, 2023
概括
纯素饮食显著改善了超重成年人的植物性饮食指数得分. 较高的分数与更大的减肥相关,这表明这种饮食有助于减肥.
科学领域:
- 营养科学 营养科学
- 饮食干预 饮食干预
- 重量管理重量管理
背景情况:
- 超重和肥胖是严重的公共卫生问题.
- 饮食模式在体重管理中起着至关重要的作用.
- 基于植物的饮食越来越多地被认为具有健康益处.
研究的目的:
- 评估植物性饮食指数 (PDI) 评分与超重成年人体重减轻之间的关联.
- 评估纯素饮食对健康 (hPDI) 和不健康 (uPDI) 植物性指数得分的影响.
- 为了确定PDI指数变化与体重变化之间的相关性.
主要方法:
- 一个随机对照试验的二次分析,涉及244名超重的成年人.
- 参与者被分配到素食饮食或对照组16周.
- 通过使用3天的记录来评估饮食摄入量,并计算PDI,hPDI和UPDI得分. 统计分析包括重复测量ANOVA和相关性.
主要成果:
- 素食饮食的参与者在PDI,hPDI和UPDI分数上显著增加.
- 在素食者组中,得分增加的效果大小是:PDI +10.6,hPDI +10.9和UPDI +5.4.
- 这三种PDI得分的变化与体重的变化有显著的相关性 (PDI r=-0.40,hPDI r=-0.37,UPDI r=-0.21).
结论:
- 坚持素食饮食增加了对植物性饮食模式的坚持,包括不太健康的植物性食物.
- 观察到的PDI,hPDI和UPDI得分的增加与超重成人显著减肥有关.
- 通过植物性饮食,尽量减少动物产品和油的消费,这可能是减肥的有效策略.
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