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KMID : 1039620180080060848
Korean Journal of Family Practice
2018 Volume.8 No. 6 p.848 ~ p.854
The Efficacy and Safety of Black Tea Extract on Weight or Body Fat Reduction in Overweight or Obese Subjects: A Randomized, Double-Blind, Placebo-Controlled Study
Kim Soo-Jin

Kim Kyung-Soo
Lee Myeong-Soo
An Eung-Nam
Kim Ji-Youn
Lee Tae-Ho
Baek Nam-Joon
Lee Sang-Jin
Abstract
Background: Black tea extracts (BTE), which are rich in gallic acid, have been associated with the improvement of obesity in rats. However, whether black tea consumption is beneficial in human subjects is unknown. In this study, we aimed to evaluate whether BTE can reduce body fat mass in human subjects.

Methods: We investigated the effects of BTE intake in 50 pre-obese and obese Korean adults (23 kg/m2
Results: After 8 weeks of BTE consumption the mean BMI decreased by 0.05¡¾0.32 kg/m2 in the BTE group compared with a decrease of 0.18¡¾0.78 kg/m2 in the placebo group. There was a 0.10¡¾0.79 kg difference in weight within the BTE group. Abdominal computed tomography scans revealed a liver Hounsfield unit decrease of 0.32¡¾5.84 in the BTE group compared with a decrease of 3.03¡¾3.65 in the placebo group. None of the differences were statistically significant (P>0.05).

Conclusion: BTE was not effective in reducing human body weight or body fat composition, when compared with the effects of placebo.
KEYWORD
Black Tea Extract, Obesity, Body Mass Index, Visceral Fat
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