Energy density of diets reported by American adults: association with food group intake, nutrient intake, and body weight
Energy density of diets reported by American adults: association with food group intake, nutrient intake, and body weight
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DOI：
10.1038/sj.ijo.0802980
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发表时间：
2005-08-01
影响因子：
4.9
通讯作者：
Graubard, BI
中科院分区：
文献类型：
--
作者：
Kant, AK;Graubard, BI
目的：最近的报道表明，饮食能量密度可能在食物摄入量的调节中起作用。然而，自由生活人群饮食的能量密度知之甚少；因此，本研究的目的是检查人口统计学、健康和营养与自我报告饮食能量密度的相关性。研究方法和程序：使用NHANES III(n=13 400)的数据，饮食能量密度被定义为三种方式：(1)所有报告的食品和饮料或ED1的能量含量(kJ/g)，(2)所有食品和产生能量的饮料或ED2的能量含量(kJ/g)，以及(3)所有食物(不含饮料)或ED3的能量含量(kJ/g)。采用多元线性或Logistic回归方法检验能量密度与能量摄入量、营养素、食物种类和体重指数(BMI)的关系。结果：平均ED1为3.84+/-0.02，ED2为5.45+/-0.03，ED3为8.03+/-0.03。能量、脂肪和低营养密度食物的膳食摄入量呈正相关，而微量营养素、水果和蔬菜的摄入量与所有类型的能量密度呈负相关(P<；0.0001)。ED2和ED3是男性和女性BMI的温和正向预测因子(P
OBJECTIVE: Recent reports suggest that dietary energy density may play a role in regulation of food intake. However, little is known about the energy density of diets consumed by free-living populations; therefore, the purpose of this study was to examine demographic, health, and nutritional correlates of energy density of self-reported diets.RESEARCH METHODS AND PROCEDURES: Using data from the NHANES III (n = 13 400), dietary energy density was defined three ways: (1) energy content (kJ/g) of all foods and beverages reported or ED1, (2) energy content (kJ/g) of all foods and energy yielding beverages or ED2, and (3) energy content (kJ/g) of all foods (no beverages) or ED3. Multiple linear or logistic regression methods were used to examine the association of energy density with intake of energy, nutrients, food groups, and body mass index (BMI). We computed the ratios of within- to between-person variance for the three energy density variables using the second recall obtained from the second exam subsample of NHANES III (n = 1037).RESULTS: The mean ED1, ED2, and ED3, respectively, were 3.84 +/- 0.02, 5.45 +/- 0.03, and 8.03 +/- 0.03. Dietary intakes of energy, fat, and low-nutrient-density foods were related positively, but amounts of micronutrients, fruit, and vegetables were related inversely with all types of energy density (P < 0.0001). ED2 and ED3 were modest positive predictors of BMI in both men and women (P