Dietary energy density is associated with energy intake and weight status in US adults
Dietary energy density is associated with energy intake and weight status in US adults
复制标题
DOI：
10.1093/ajcn/83.6.1362
复制
发表时间：
2006-06-01
影响因子：
7.1
通讯作者：
Rolls, Barbara J.
中科院分区：
文献类型：
--
作者：
Ledikwe, Jenny H.;Blanck, Heidi M.;Rolls, Barbara J.
背景：基于实验室的研究表明，低能量密度（kcal/g）的食物会降低能量摄入。虽然低能量密度饮食被推荐用于体重管理，但能量密度、能量摄入和体重状况之间的关系在自由生活的人中尚未明确显示。目的：一个有代表性的美国样本被用来确定膳食能量密度是否与能量摄入、食物消耗的重量和体重相关，并探索食物选择的影响。（水果、蔬菜和脂肪消耗）对能量密度和体重的影响。设计：一项成人横断面调查（n = 7356）从1994-1996年个人食物摄入量的持续调查和两个24小时的饮食回忆。与高能量密度饮食的人相比，低能量密度饮食的男性和女性的能量摄入量较低（分别约为425和275千卡/天），即使他们消耗更多的食物（分别约为400和300克/天）。正常体重的人比肥胖的人饮食的能量密度低。高水果和蔬菜摄入量的人有最低的能量密度值和最低的肥胖患病率。结论：成年人消耗低能量密度的饮食可能会消耗更多的食物（按重量），但有较低的能量摄入比那些消耗高能量密度的饮食。通过添加水果和蔬菜，可以降低各种饮食模式的能量密度，包括高脂肪饮食。我们的研究结果支持了这一假设，即能量密集型饮食的消费和肥胖之间存在联系，并提供了水果和蔬菜消费对体重管理的重要性的证据。
Background: Laboratory-based investigations indicate that the consumption of foods with a low energy density (kcal/g) decreases energy intake. Although low-energy-dense diets are recommended for weight management, relations between energy density, energy intake, and weight status have not been clearly shown in free-living persons.Objectives: A representative US sample was used to determine whether dietary energy density is associated with energy intake, the weight of food consumed, and body weight and to explore the influence of food choices (fruit, vegetable, and fat consumption) on energy density and body weight.Design: A cross-sectional survey of adults (n = 7356) from the 1994-1996 Continuing Survey of Food Intakes by Individuals and two 24-h dietary recalls were used.Results: Men and women with a low-energy-dense diet had lower energy intakes (approximate to 425 and 275 kcal/d less, respectively) than did those with a high-energy-dense diet, even though they consumed more food (approximate to 400 and 300 g/d more, respectively). Normal-weight persons had diets with a lower energy density than did obese persons. Persons with a high fruit and vegetable intake had the lowest energy density values and the lowest obesity prevalence.Conclusions: Adults consuming a low-energy-dense diet are likely to consume more food (by weight) but to have a lower energy intake than do those consuming a higher-energy-dense diet. ne energy density of a variety of dietary patterns, including higher-fat diets, can be lowered by adding fruit and vegetables. Our findings support the hypothesis that a relation exists between the consumption of an energy-dense diet and obesity and provide evidence of the importance of fruit and vegetable consumption for weight management.