Covert manipulation of the ratio of dietary fat to carbohydrate and energy density: effect on food intake and energy balance in free-living men eating ad libitum.
Covert manipulation of the ratio of dietary fat to carbohydrate and energy density: effect on food intake and energy balance in free-living men eating ad libitum.
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膳食脂肪与碳水化合物的比例和能量密度的秘密操纵：对自由生活男性随意进食的食物摄入和能量平衡的影响。
DOI：
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发表时间：
1995
影响因子：
7.1
通讯作者：
A. Prentice
中科院分区：
文献类型：
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作者：
R. Stubbs;P. Ritz;W. Coward;A. Prentice
我们之前增加了三种饮食的能量密度和脂肪含量（析因设计），这导致6名男性在7天内的能量摄入量显着增加，同时连续居住在全身间接热量计中。在本研究中，我们喂相同的饮食，7名男子谁是居民，但不限于，代谢套房2周/饮食。这增加了增加体力活动的一个组成部分。每种饮食的脂肪、碳水化合物和蛋白质含量（以能量的百分比计）分别如下：低脂（LF），20：67：13;中脂（MF），40：47：13;高脂（HF），60：27：13。能量密度随着饮食中脂肪百分比的增加而增加。LF、MF和HF饮食的能量摄入（分别为9.11、10.32和12.78 MJ/d）与我们的热量计研究几乎相同（分别为9.02、10.2和12.35 MJ/d），而能量消耗（由双标记水方法估计）分别为12.45，12.10，和11.97兆焦耳/天的LF，MF和HF饮食，分别为9.48，9.53，和9.78兆焦耳/天，在我们的热量计研究。这一发现表明，饮食组成和能量消耗共同影响人类的能量平衡。
We previously increased the energy density and fat content across three diets (factorial design), which led to a marked increase in energy intake in six men over 7 d while continuously resident in a whole-body indirect calorimeter. In the present study we fed the same diets to seven men who were resident in, but not confined to, a metabolic suite for 2 wk/diet. This added a component of increased physical activity. The fat, carbohydrate, and protein contents, respectively, of each diet (as a percent of energy) were as follows: low-fat (LF), 20:67:13; medium-fat (MF), 40:47:13; and high-fat (HF), 60:27:13. Energy density increased as the percent of fat in the diet increased. Energy intakes from the LF, MF, and HF diets (9.11, 10.32, and 12.78 MJ/d, respectively) were almost identical to those in our calorimeter study (9.02, 10.2, and 12.35 MJ/d, respectively) whereas energy expenditures (estimated by the doubly labeled water method) were 12.45, 12.10, and 11.97 MJ/d on the LF, MF and HF diets, respectively, compared with 9.48, 9.53, and 9.78 MJ/d, respectively, in our calorimeter study. This finding suggests that diet composition and energy expenditure combined influence energy balance in humans.