蔬菜和水果摄入量与认知功能及其下降的关联:两项纵向研究
Liyan Huang1, Caifeng Zhao1, Mengyan Gao1
1School of Public Health, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 30058, China.
The journal of nutrition, health & aging
|April 10, 2024
概括
蔬菜和水果 (VF) 的更高摄入量与更好的认知功能和老年人的慢衰退有关. 某些特定类型,如十字和绿叶蔬菜,对大脑健康有着特殊的益处.
科学领域:
- 营养科学 营养科学
- 神经科学是一个神经科学.
- 流行病学 流行病学
背景情况:
- 以前的研究表明,蔬菜和水果 (VF) 消费与认知健康之间存在潜在联系.
- 然而,特定类型的VF及其对认知的差异性影响仍未得到充分研究.
研究的目的:
- 研究蔬菜和水果总和特定类型摄入量与认知功能之间的关联.
- 检查VF消费与中年和老年人认知能力下降的速度之间的关系.
主要方法:
- 分析了中国健康与营养调查 (CHNS) 的4066名参与者和健康与退休研究 (HRS) 的6170名参与者的数据.
- 通过3天24小时回忆 (CHNS) 和食物频率问卷 (HRS) 评估饮食摄入量.
- 使用调整认知状态的电话访谈 (TICS-m) 测量认知功能;用于分析的线性混合效应模型.
主要成果:
- 较高的总VF摄入量与更好的认知功能相关 (z-score差异为CHNS的0.039,HRS的0.063) 和认知衰退速度较慢 (0.011-0.012单位/年).
- 十字植物蔬菜和绿叶蔬菜在两个队列中独立地与更好的认知功能有关.
- 暗色蔬菜 (红/黄色) 和绿叶蔬菜与较慢的认知衰退有关.
结论:
- 研究结果支持总体VF摄入量在维持认知功能和减轻认知衰退方面的有益作用.
- 特定的蔬菜类型,包括十字花,绿叶和红/黄色品种,对认知健康有着特别的希望.
- 这些结果强调了多样化的蔬菜和水果消费对老龄人口大脑健康的重要性.
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