Department of Nutrition and Food Hygiene, School of Public Health, Yangzhou University, Yangzhou 225009, Jiangsu, China.
Department of Nutrition and Food Hygiene, School of Tourism and Cuisine, Yangzhou University, Yangzhou 225127, Jiangsu, China.
Biomed Environ Sci. 2023 Jul 20;36(7):585-594. doi: 10.3967/bes2023.086.
To determine the thermic effect of food (TEF) in a Chinese mixed diet in young people.
During the study, the participants were weighed and examined for body composition every morning. The total energy expenditure (TEE) of the participants was measured by the doubly labeled water method for 7 days, and during this period, basal energy expenditure was measured by indirect calorimetry and physical activity energy expenditure was measured by an accelerometer. The value obtained by subtracting basal energy expenditure and physical activity energy expenditure from TEE was used to calculate TEF.
Twenty healthy young students (18-30 years; 10 male) participated in the study. The energy intake of the participants was not significantly different from the Chinese Dietary Reference Intake of energy ( > 0.05). The percentage of energy from protein, fat and carbohydrate were all in the normal range. The intakes of fruits, milk and dietary fiber of the participants were significantly lower than those in the Chinese Dietary Guidelines ( < 0.05). There was no significant difference in the body weight of the participants during the experiment ( > 0.05). When adjusted for body weight, there was no significant difference in either TEE or basal energy expenditure between the male and female participants ( > 0.05). In addition, there was no significant difference in physical activity energy expenditure and TEF between the male and female participants ( > 0.05). The percentage of TEF in TEE was 8.73%.
The percentage of TEF in TEE in a Chinese mixed diet in young people was significantly lower than 10% ( < 0.001). A value of 10% is usually considered to be the TEF in mixed diets as a percentage of TEE.
测定中国混合膳食中青年人群的食物热效应（TEF）。
在研究期间，每天早上对参与者进行称重和身体成分检查。通过双标水法测量参与者的总能量消耗（TEE）7 天，在此期间，通过间接测热法测量基础能量消耗，通过加速度计测量体力活动能量消耗。TEE 减去基础能量消耗和体力活动能量消耗的值用于计算 TEF。
20 名健康年轻学生（18-30 岁；10 名男性）参加了研究。参与者的能量摄入量与中国膳食参考摄入量的能量无显著差异（ > 0.05）。蛋白质、脂肪和碳水化合物的能量百分比均在正常范围内。参与者的水果、牛奶和膳食纤维摄入量均明显低于中国膳食指南（ < 0.05）。实验过程中参与者的体重无显著差异（ > 0.05）。校正体重后，男女参与者的 TEE 或基础能量消耗无显著差异（ > 0.05）。此外，男女参与者的体力活动能量消耗和 TEF 无显著差异（ > 0.05）。TEE 中 TEF 的百分比为 8.73%。
中国混合膳食中青年人群 TEE 中 TEF 的百分比明显低于 10%（ < 0.001）。通常认为 10%是混合膳食中 TEF 占 TEE 的百分比。
