KMID : 1039620180080060848
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Korean Journal of Family Practice 2018 Volume.8 No. 6 p.848 ~ p.854
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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
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Kim Soo-Jin
Kim Kyung-Soo Lee Myeong-Soo An Eung-Nam Kim Ji-Youn Lee Tae-Ho Baek Nam-Joon Lee Sang-Jin
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Abstract
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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.
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KEYWORD
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Black Tea Extract, Obesity, Body Mass Index, Visceral Fat
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