概括
在芬兰医院饮食中用植物油取代乳制品脂肪,显著降低了男性冠心病 (CHD) 死亡率. 这项饮食干预试验还表明,整体死亡率降低了,但没有影响其他死亡原因.
科学领域:
- 心血管流行病学心血管流行病学
- 营养科学 营养科学
- 公共卫生 公共卫生
背景情况:
- 国际统计数据显示,和脂肪摄入量与冠心病 (CHD) 死亡率之间存在相关性.
- 流行病学研究支持这种关联,但无法确定因果关系.
- 需要进行饮食干预试验来确认因果关系.
研究的目的:
- 调查饮食脂肪质量与心血管疾病死亡率之间的因果关系.
- 评估用植物油取代乳制品脂肪对健康结果的影响.
主要方法:
- 芬兰精神病院研究是一项饮食干预试验,于1959年至1971年在赫尔辛基附近的两家精神病院进行.
- 患者饮食中的乳制品脂肪几乎完全被植物油取代.
主要成果:
- 在饮食改变后,在住院的男性中观察到心血管疾病死亡率大幅降低.
- 总死亡率似乎也在下降.
- 没有发现对心脏病以外的其他原因的死亡率或恶性瘤的死亡率有重大影响.
结论:
- 饮食干预,特别是用植物油取代和乳制品脂肪,可以显著降低男性心脏病死亡率.
- 饮食脂肪修改的公共卫生建议得到了这些发现的支持.
- 进一步的研究可能会探索饮食脂肪对心血管健康的影响的长期影响和具体机制.
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