The effect of black tea on risk factors of cardiovascular disease in a normal population

Bahorun, T., Luximon-Ramma, A., Neergheen-Bhujun, V.S., Gunness, T.K., Googoolye, K., Auger, C., Crozier, A. and Aruoma, O.I. (2012) The effect of black tea on risk factors of cardiovascular disease in a normal population. Preventive Medicine, 54(Suppl.), S98-S102. (doi: 10.1016/j.ypmed.2011.12.009)

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Publisher's URL: http://dx.doi.org/10.1016/j.ypmed.2011.12.009

Abstract

OBJECTIVES:<br/> A prospective randomized controlled clinical trial determined the effect of Mauritian black tea consumption on fasting blood plasma levels of glucose, lipid profiles and antioxidant status in a normal population.<br/> METHODS:<br/> The study group (71%) consumed 3 x 200 ml of black tea infusate/day for 12 weeks without additives followed by a 3 week wash-out. The control group (29%) consumed equivalent volume of hot water for same intervention period.<br/> RESULTS:<br/> The tea used had high levels of gallic acid derivatives (50 ± 0.4 mg/L), flavan-3-ols (42 ± 2 mg/L), flavonols (32 ± 1 mg/L) and theaflavins (90 ± 1 mg/L). Daily 9 g supplementation of black tea infusate induced, in a normal population, a highly significant decrease of fasting serum glucose (18.4%; p<0.001) and triglyceride levels (35.8%; p<0.01), a significant decrease in LDL/HDL plasma cholesterol ratio (16.6%; p<0.05) and a non significant increase in HDL plasma cholesterol levels (20.3%), while a highly significant rise in plasma antioxidant propensity (FRAP: 418%; p<0.001) was noted . <br/>CONCLUSION:<br/> Black tea consumed within a normal diet contributes to a decrease of independent cardiovascular risk factors and improves the overall antioxidant status in humans.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Crozier, Professor Alan
Authors: Bahorun, T., Luximon-Ramma, A., Neergheen-Bhujun, V.S., Gunness, T.K., Googoolye, K., Auger, C., Crozier, A., and Aruoma, O.I.
College/School:College of Medical Veterinary and Life Sciences > School of Medicine, Dentistry & Nursing
Journal Name:Preventive Medicine
Journal Abbr.:Prev. Med.
ISSN:0091-7435
ISSN (Online):1096-0260
Published Online:16 December 2011

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