Janssens Pilou L H R, Hursel Rick, Westerterp-Plantenga Margriet S
Department of Human Biology, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University, Maastricht, The Netherlands
Department of Human Biology, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University, Maastricht, The Netherlands.
J Nutr. 2015 May;145(5):864-70. doi: 10.3945/jn.114.207829. Epub 2015 Mar 4.
Green tea (GT) extract may play a role in body weight regulation. Suggested mechanisms are decreased fat absorption and increased energy expenditure.
We examined whether GT supplementation for 12 wk has beneficial effects on weight control via a reduction in dietary lipid absorption as well as an increase in resting energy expenditure (REE).
Sixty Caucasian men and women [BMI (in kg/m²): 18-25 or >25; age: 18-50 y] were included in a randomized placebo-controlled study in which fecal energy content (FEC), fecal fat content (FFC), resting energy expenditure, respiratory quotient (RQ), body composition, and physical activity were measured twice (baseline vs. week 12). For 12 wk, subjects consumed either GT (>0.56 g/d epigallocatechin gallate + 0.28-0.45 g/d caffeine) or placebo capsules. Before the measurements, subjects recorded energy intake for 4 consecutive days and collected feces for 3 consecutive days.
No significant differences between groups and no significant changes over time were observed for the measured variables. Overall means ± SDs were 7.2 ± 3.8 g/d, 6.1 ± 1.2 MJ/d, 67.3 ± 14.3 kg, and 29.8 ± 8.6% for FFC, REE, body weight, and body fat percentage, respectively.
GT supplementation for 12 wk in 60 men and women did not have a significant effect on FEC, FFC, REE, RQ, and body composition.
绿茶提取物可能在体重调节中发挥作用。推测的机制是减少脂肪吸收和增加能量消耗。
我们研究了连续12周补充绿茶是否通过减少膳食脂质吸收以及增加静息能量消耗（REE）对体重控制产生有益影响。
60名白种男性和女性[体重指数（kg/m²）：18 - 25或>25；年龄：18 - 50岁]纳入一项随机安慰剂对照研究，测量两次粪便能量含量（FEC）、粪便脂肪含量（FFC）、静息能量消耗、呼吸商（RQ）、身体成分和身体活动（基线与第12周）。连续12周，受试者服用绿茶胶囊（>0.56 g/d表没食子儿茶素没食子酸酯 + 0.28 - 0.45 g/d咖啡因）或安慰剂胶囊。在测量前，受试者连续4天记录能量摄入并连续3天收集粪便。
各测量变量在组间无显著差异，且随时间无显著变化。FFC、REE、体重和体脂百分比的总体均值±标准差分别为7.2±3.8 g/d、6.1±1.2 MJ/d、67.3±14.3 kg和29.8±8.6%。
60名男性和女性连续12周补充绿茶对FEC、FFC、REE、RQ和身体成分无显著影响。
