饮食窗与美国成年人死亡率的关联:来自全国代表性研究的见解
Ziling Mao1,2, Haley Grant3, Stephen B Kritchevsky4
1Department of Epidemiology, School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.
Aging cell
|September 13, 2025
概括
优化你的饮食窗口可能会影响长寿. 每天11-12小时的适度饮食窗口与最低的死亡风险有关,而较短或较长的窗口增加了风险.
科学领域:
- 营养科学 营养科学
- 流行病学 流行病学
- 公共卫生 公共卫生
背景情况:
- 基于时间的饮食,如间歇性禁食,对于潜在的健康益处越来越受欢迎.
- 然而,关于它们对人类寿命的长期影响,特别是死亡风险的强有力的证据有限.
- 大多数现有的数据来自于短期的人体试验和动物研究,需要在不同种群中进一步调查.
研究的目的:
- 调查每日饮食窗口持续时间与美国成年人大量队列中的全因,心血管和癌症死亡率之间的关联.
- 为了确定与降低死亡风险相关的最佳饮食窗口持续时间.
- 探索不同的人口分组中这些关联的潜在变化.
主要方法:
- 一项前性队列研究利用了2003-2018年国家健康和营养检查调查 (NHANES) 的数据,与2019年12月的死亡记录联系在一起.
- 该研究包括33,052名美国成年人 (年龄≥20岁),两次24小时的饮食召回.
- 饮食窗口被定义为第一个和最后一个含卡路里食物/饮料消费之间的时间;分析使用了Cox回归与受限制立方 (RCS) 调整了许多共同变量.
主要成果:
- 在食用窗口持续时间和全因死亡率之间观察到U形关联,每天约11-12小时的窗口被确定为最低风险 (p=0.004).
- 较短的饮食窗口 (≤8小时) 与全因死亡率增加≥30%,心血管死亡率增加>50%,特别是在老年人,男性和白人中.
- 较长的进食时间 (≥15小时) 与全因死亡风险增加25%有关.
结论:
- 每天约11-12小时的适度饮食窗口似乎与所有原因和心血管死亡率的最低风险有关.
- 显著限制 (<8小时) 和延长 (≥15小时) 的饮食窗口都与增加的死亡风险有关.
- 这些发现强调了与死亡率相关的饮食窗口时间的重要性,并表明考虑到人口统计学变化,个性化饮食指导可能是有益的.
更多相关视频
03:35Determining Gender-Based Differences in Retinal and Choroidal Thickness in Underweight Individuals via Swept-Source Optical Coherence Tomography
Published on: December 1, 2023
596
04:46'Boden Food Plate': Novel Interactive Web-based Method for the Assessment of Dietary Intake
Published on: September 18, 2018
7.7K
相关概念视频
Binge Eating Disorders
426
Binge eating disorder is a significant mental health condition characterized by recurrent episodes of excessive food consumption within a short period, accompanied by a perceived loss of control over eating behavior. Unlike occasional overeating, binge eating disorder is marked by distressing emotions such as guilt, shame, and anxiety following binge episodes. The disorder affects individuals across different ages and backgrounds, with profound implications for physical and psychological...
426
Anorexia Nervosa
1.0K
Anorexia nervosa is a complex and severe eating disorder characterized by an intense fear of weight gain, an unrelenting pursuit of thinness, and a distorted body image. It often leads to dangerously low body weight relative to an individual's age and height. This disorder is marked by significant physical and psychological consequences, making it one of the most life-threatening psychiatric illnesses.
Symptoms and Physical Effects
Individuals with anorexia nervosa commonly exhibit extreme...
Symptoms and Physical Effects
Individuals with anorexia nervosa commonly exhibit extreme...
1.0K
Regulation of Food Intake
2.3K
Short-term regulation of food intake primarily involves neural signals from the gastrointestinal (GI) tract, blood nutrient levels, and GI tract hormones. Communication between the gut and brain via vagal nerve fibers plays a significant role in evaluating the contents of the gut. Clinical studies have shown that protein ingestion produces a more prolonged response in these nerve fibers compared to an equivalent amount of glucose. Additionally, the activation of stretch receptors caused by GI...
2.3K
Bulimia Nervosa
692
Bulimia nervosa is a complex and severe eating disorder characterized by a cyclical pattern of binge-and-purge eating pattern. It generally involves an episode of binge eating, followed by compensatory behaviors such as vomiting, excessive exercise, laxative use, or fasting, to prevent weight gain. Despite often maintaining a normal weight, individuals with bulimia are intensely preoccupied with their body image and harbor an overwhelming fear of gaining weight. This can contribute to the...
692
Metabolic States of the Body: Fasting and Starvation
2.7K
During the initial hours of fasting, the body uses up its glycogen stores as an energy source. Once these glycogen reserves are depleted, the body begins breaking down stored triglycerides and structural proteins. During this stage, glycerol becomes a key substrate for gluconeogenesis, while free fatty acids undergo beta-oxidation to provide energy for tissues, such as skeletal muscle. In the fasting state, the body spares protein breakdown as much as possible to conserve muscle and structural...
2.7K
Longitudinal Research
13.1K
Sometimes we want to see how people change over time, as in studies of human development and lifespan. When we test the same group of individuals repeatedly over an extended period of time, we are conducting longitudinal research. Longitudinal research is a research design in which data-gathering is administered repeatedly over an extended period of time. For example, we may survey a group of individuals about their dietary habits at age 20, retest them a decade later at age 30, and then again...
13.1K
