Crovetti R, Porrini M, Santangelo A, Testolin G
Department of Food Science and Technology, University of Milan, Italy.
Eur J Clin Nutr. 1998 Jul;52(7):482-8. doi: 10.1038/sj.ejcn.1600578.
To evaluate energy expenditure after three isoenergetic meals of different nutrient composition and to establish the relationship between the thermic effect of food (TEF), subsequent energy intake from a test meal and satiety sensations related to consumption.
The study employed a repeated measures design. Ten subjects received, in a randomized order, three meals of 2331+/-36 kJ (557+/-9 kcal). About 68% of energy from protein in the high protein meal (HP), 69% from carbohydrate in the high carbohydrate meal (HC) and 70% from fat in the high fat meal (HF).
The experiments were performed at the University of Milan.
Ten normal body-weight healthy women.
Energy expenditure was measured by indirect calorimetric measurements, using an open-circuit ventilated-hood system; intake was assessed 7h later by weighing the food consumed from a test meal and satiety sensations were rated by means of a satiety rating questionnaire.
TEF was 261+/-59, 92+/-67 and 97+/-71 kJ over 7 h after the HP, HC and HF meals, respectively. The HP meal was the most thermogenic (P < 0.001) and it determined the highest sensation of fullness (P=0.002). There were no differences in the sensations and thermic effect between fat and carbohydrate meals. A significant relationship linked TEF to fullness sensation (r=0.41, P=0.025). Energy intake from the test meal was comparable after HP, HC and HF meals.
Our results suggest that TEF contributes to the satiating power of foods.
评估三种不同营养成分的等能量餐食后的能量消耗，并确定食物热效应（TEF）、随后从测试餐中摄入的能量与进食相关饱腹感之间的关系。
本研究采用重复测量设计。十名受试者以随机顺序接受三份能量为2331±36 kJ（557±9 kcal）的餐食。高蛋白餐（HP）中约68%的能量来自蛋白质，高碳水化合物餐（HC）中69%来自碳水化合物，高脂肪餐（HF）中70%来自脂肪。
实验在米兰大学进行。
十名体重正常的健康女性。
使用开路通风罩系统通过间接热量测量法测量能量消耗；7小时后通过称量测试餐中消耗的食物来评估摄入量，并通过饱腹感评分问卷对饱腹感进行评分。
HP餐、HC餐和HF餐之后7小时内的TEF分别为261±59、92±67和97±71 kJ。HP餐的产热作用最强（P<0.001），且其产生的饱腹感最强（P=0.002）。脂肪餐和碳水化合物餐在饱腹感和热效应方面没有差异。TEF与饱腹感之间存在显著相关性（r=0.41，P=0.025）。HP餐、HC餐和HF餐之后从测试餐中摄入的能量相当。
我们的结果表明，TEF有助于食物的饱腹感作用。
