坚果摄入如何影响认知功能(综述)
创作:szx 审核:szx 2020年12月27日
  • 纳入22项研究(共涉及43,793名受试者),其中包括8项RCT,总结坚果摄入对认知功能的影响;
  • 涉及的坚果包括杏仁、榛子、腰果、花生、核桃、松子等,涉及的认知功能包括记忆、注意力、处理速度、执行功能、视觉空间能力、轻度认知功能障碍;
  • 不同研究之间的得出的结论并不一致,总体上,坚果摄入对认知衰退高风险(如心血管疾病高风险、受教育程度较低)个体的有更好的作用;
  • 核桃摄入与年轻人、中年人及老年人的更好的认知表现相关。
主编推荐语
szx
Advances in Nutrition上发表的一项系统性综述,总结了22项研究(包含近4.5万名受试者),分析了坚果摄入对认知功能的影响。因不同研究中所涉及的坚果类型、认知评价指标、研究人群等因素并不一致,并未得出一致的结论。总体而言,坚果摄入对认知衰退高风险个体的认知功能可能有益。
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Nut Consumption for Cognitive Performance: A Systematic Review

坚果摄入对认知表现的影响:系统性综述

10.1093/advances/nmaa153

2020-12-16, Review

Abstract & Authors:展开

Abstract:收起
Diet is considered an important modifiable lifestyle factor capable of attenuating early cognitive changes in healthy older people. The inclusion of nuts in the diet has been investigated as a dietary strategy for maintenance of brain health across the lifespan. This review aimed to present up-to-date evidence regarding the association between nut intake and cognitive performance. Four databases (Ovid MEDLINE, Scopus, Cumulative Index to Nursing and Allied Health Literature (CINAHL) Plus, and Embase) were systematically searched from inception to April 2020. Eligible articles were interventional or observational studies in humans aged ≥18 y that measured the effects (or association) of nuts (almond, hazelnut, macadamia, pistachio, walnut, pecan, pine nut, Brazil nut, cashew, peanut) on cognitive outcomes. Out of the 2374 articles identified in the searches, 22 involving 43,793 participants met the criteria and were ultimately included in this review. Memory (immediate and delayed), attention, processing speed, executive function, and visual-spatial ability, as well as risk of mild cognitive impairment, were the outcomes investigated. Lack of consistency across the studies regarding study design, types of nut used, and cognitive outcomes measured resulted in inconsistent evidence that the regular consumption of mixed nuts has a protective effect on cognition in adults of different ages. Nonetheless, we observed that studies targeting populations with a higher risk of cognitive decline tended to find a more favorable outcome. Furthermore, homogeneous findings were observed in the studies that specifically addressed the association between walnut consumption and cognitive performance: out of the 6 studies, including 2 randomized controlled trials, only 1 did not find a positive association.

First Authors:
Lauren E Theodore,Nicole J Kellow

Correspondence Authors:
Barbara R Cardoso

All Authors:
Lauren E Theodore,Nicole J Kellow,Emily A McNeil,Evangeline O Close,Eliza G Coad,Barbara R Cardoso

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