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Improvements of mean body mass index and body weight in preobese and overweight Japanese adults with black Chinese tea (Pu-Erh) water extract.
Nutr Res 2011; 31(6):421-8NR

Abstract

Water-soluble black Chinese (Pu-Erh) tea extract (BTE), which contains high gallic acid content, has been demonstrated to elicit antiobese effects in animals. Because gallic acid is related with the reduction of visceral fat and cholesterol contents and improvement of obesity in animals, we investigated the effects of BTE intake on 36 preobese Japanese adults (body mass index [BMI], >25- <30 kg/m(2)) in a 12-week double-blind, randomized, placebo-controlled group comparison study using powdered barley tea with or without (placebo) BTE. A follow-up 4-week period after BTE intake termination was monitored to observe the withdrawal effect. All subjects ingested barley tea with or without BTE (333 mg) before each of the 3 daily meals. In the BTE-treated group, the mean pretreament values of body weight and BMI significantly decreased after intake and after BTE withdrawal. However, the corresponding values scored significant differences only from 8 weeks after intake (vs the placebo-treated group). The mean values of the waist circumference indicated a similar tendency. Furthermore, coronal navel section (same anatomical position) images of computed tomography of all BTE- and non-BTE-treated subjects revealed that the visceral fat areas (cm(2)) were significantly (P < .05) less in the former 12 weeks after BTE ingestion. Measured biochemical parameters did not indicate significant differences, and BTE-treated subjects did not complain of any adverse effects (abdominal distension, etc). Ingestion of BTE exhibited significant effects in reducing the mean waist circumference, BMI, and visceral fat values and might be useful for weight control and prevention of obesity development (or metabolic syndrome) in humans.

Authors+Show Affiliations

Department of Cardiovascular Diseases, Fukuoka University Chikushi Hospital, Fukuoka 818-8502, Japan.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Randomized Controlled Trial
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

21745623

Citation

Kubota, Kazumitsu, et al. "Improvements of Mean Body Mass Index and Body Weight in Preobese and Overweight Japanese Adults With Black Chinese Tea (Pu-Erh) Water Extract." Nutrition Research (New York, N.Y.), vol. 31, no. 6, 2011, pp. 421-8.
Kubota K, Sumi S, Tojo H, et al. Improvements of mean body mass index and body weight in preobese and overweight Japanese adults with black Chinese tea (Pu-Erh) water extract. Nutr Res. 2011;31(6):421-8.
Kubota, K., Sumi, S., Tojo, H., Sumi-Inoue, Y., I-Chin, H., Oi, Y., ... Urata, H. (2011). Improvements of mean body mass index and body weight in preobese and overweight Japanese adults with black Chinese tea (Pu-Erh) water extract. Nutrition Research (New York, N.Y.), 31(6), pp. 421-8. doi:10.1016/j.nutres.2011.05.004.
Kubota K, et al. Improvements of Mean Body Mass Index and Body Weight in Preobese and Overweight Japanese Adults With Black Chinese Tea (Pu-Erh) Water Extract. Nutr Res. 2011;31(6):421-8. PubMed PMID: 21745623.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Improvements of mean body mass index and body weight in preobese and overweight Japanese adults with black Chinese tea (Pu-Erh) water extract. AU - Kubota,Kazumitsu, AU - Sumi,Shunichiro, AU - Tojo,Hideaki, AU - Sumi-Inoue,Yukiko, AU - I-Chin,Hou, AU - Oi,Yasuyuki, AU - Fujita,Hiroyuki, AU - Urata,Hidenori, Y1 - 2011/06/17/ PY - 2011/01/16/received PY - 2011/05/02/revised PY - 2011/05/09/accepted PY - 2011/7/13/entrez PY - 2011/7/13/pubmed PY - 2011/12/13/medline SP - 421 EP - 8 JF - Nutrition research (New York, N.Y.) JO - Nutr Res VL - 31 IS - 6 N2 - Water-soluble black Chinese (Pu-Erh) tea extract (BTE), which contains high gallic acid content, has been demonstrated to elicit antiobese effects in animals. Because gallic acid is related with the reduction of visceral fat and cholesterol contents and improvement of obesity in animals, we investigated the effects of BTE intake on 36 preobese Japanese adults (body mass index [BMI], >25- <30 kg/m(2)) in a 12-week double-blind, randomized, placebo-controlled group comparison study using powdered barley tea with or without (placebo) BTE. A follow-up 4-week period after BTE intake termination was monitored to observe the withdrawal effect. All subjects ingested barley tea with or without BTE (333 mg) before each of the 3 daily meals. In the BTE-treated group, the mean pretreament values of body weight and BMI significantly decreased after intake and after BTE withdrawal. However, the corresponding values scored significant differences only from 8 weeks after intake (vs the placebo-treated group). The mean values of the waist circumference indicated a similar tendency. Furthermore, coronal navel section (same anatomical position) images of computed tomography of all BTE- and non-BTE-treated subjects revealed that the visceral fat areas (cm(2)) were significantly (P < .05) less in the former 12 weeks after BTE ingestion. Measured biochemical parameters did not indicate significant differences, and BTE-treated subjects did not complain of any adverse effects (abdominal distension, etc). Ingestion of BTE exhibited significant effects in reducing the mean waist circumference, BMI, and visceral fat values and might be useful for weight control and prevention of obesity development (or metabolic syndrome) in humans. SN - 1879-0739 UR - https://www.unboundmedicine.com/medline/citation/21745623/Improvements_of_mean_body_mass_index_and_body_weight_in_preobese_and_overweight_Japanese_adults_with_black_Chinese_tea__Pu_Erh__water_extract_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0271-5317(11)00092-3 DB - PRIME DP - Unbound Medicine ER -