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客观和主观的食欲测量:在一个随机交叉临床试验中,高与低的饮食频率
Xiaochen Zhang1,2, Martine Perrigue3, Jeannette M Schenk1
1Cancer Prevention Program, Division of Public Health Sciences, Fred Hutchinson Cancer Center, Seattle, Washington, USA.
Obesity (Silver Spring, Md.)
|April 1, 2025
概括
吃饭的频率会影响食欲调节. 高饮食频率 (每天6餐) 会抑制饥饿和的激素,如 ghrelin 和酸YY (PYY),这表明与低频饮食相比,食欲控制不太理想.
科学领域:
- 内分泌学 在内分泌学.
- 营养科学 营养科学
- 人体生理学 人体生理学
背景情况:
- 食欲调节是复杂的,受激素信号和食时间的影响.
- 了解饮食频率 (EF) 在调节和激素和主观食欲方面的作用,对于饮食策略至关重要.
研究的目的:
- 调查21天高 (每天6餐) 与低 (每天3餐) 的饮食频率干预对客观 (格林,YY [PYY]) 和主观食欲测量对健康成年人的影响.
主要方法:
- 一个随机交叉试验 (饮食频率和和激素[FRESH]研究) 涉及两个21天的高热量周期 (低和高EF) 具有相同的食物摄入量.
- 客观食欲通过每小时血格林和PYY测量在21日的7小时诊所访问期间评估.
- 主观的食欲评分 (饥饿,渴望吃饭,腹) 每30分钟收集一次.
主要成果:
- 与低EF相比,高EF导致格林和PYY度的食后变化较小 (p <0.05).
- 主观食欲评级反映了荷尔蒙变化,高EF显示饥饿和腹的波动不那么明显.
- 餐后PYY差异在超重/肥胖或身体脂肪百分比较高的个体中更为显著.
结论:
- 高频率的饮食可能会导致腹反应和食欲调节不太理想.
- 这些发现表明,饮食频率,独立于总热量摄入量,会影响荷尔蒙和主观食欲控制机制.
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