概括
肥胖率的上升与自我报告的食物摄入量下降形成鲜明对比. 心理因素,特别是超重和肥胖个人的食物消费报告不足的增加,解释了这种差异,而不是能量平衡模型中的缺陷.
科学领域:
- 营养科学 营养科学
- 心理学 心理学 心理学
- 公共卫生 公共卫生
背景情况:
- 美国和英国的肥胖率正在增加.
- 自我报告的食品消费数据显示下降趋势.
- 在肥胖率上升和报告的食物摄入量下降之间存在差异.
研究的目的:
- 调查肥胖率与自我报告的食物消费之间的差异.
- 根据这种差异,评估能量平衡模型的有效性.
- 探索偏见的食物消费数据的心理解释.
主要方法:
- 综述美国和英国的数据,使用双重标记水 (DLW) 方法.
- 从DLW研究中分析能源支出估计.
- 测量能量消耗与报告的热量消耗的比较.
主要成果:
- 发现了关于食品消费报告不足的一致证据.
- 随着时间的推移,测量的能源消耗与报告的能源消耗之间的差距越来越大.
- 心理学因素被确定为观察到的差异的关键解释.
结论:
- 这种差异很可能是由于心理因素造成的,特别是超重和肥胖个体报告不足的增加.
- 能源平衡模型仍然是一个可行的框架,被替代理论过早地挑战.
- 进一步研究对饮食报告的心理影响是有必要的.
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