Navigation Links
New Research Suggests Drinking as Little as One Cup of Black Tea Per Day May Help Maintain Cardiovascular Function and Heart Health
Date:4/9/2009

NEW YORK, April 9 /PRNewswire/ -- A new study conducted at the University of L'Aquila in Italy and supported by the Lipton Institute of Tea, is the first to show that black tea consumption - depending on dose - simultaneously increased blood vessel reactivity and reduced both blood pressure and arterial stiffness, suggesting a cardiovascular health profile that is consistent with maintaining heart health.

Using a cohort of 19 healthy men (mean age 33), the researchers assigned participants to one of five prescribed intakes of black tea over five periods lasting one week each. The caffeine level of each dose was standardized but the dose of tea flavonoids was controlled at levels of 0 (the control dose), 100, 200, 400 and 800 mg of tea flavonoids per day. A standard cup of black tea contains approximately 100-200 mg of flavonoids, depending on the individual preference of tea making. During the duration of the study, participants avoided naturally flavonoid-rich food and beverages such as red wine and chocolate to ensure that the results were a true reflection of flavonoid-rich black tea consumption only.

"In our study, black tea affected vascular function in normal individuals. We observed that vascular function improvement exerted by black tea started with one cup per day and further improved by increasing the number of daily cups of tea," explained Professor Claudio Ferri, the principle investigator of the study and one of the lead researchers in this field.

"We used the gold standard technique to assess the dilation of the brachial artery in response to black tea and observed a significant improvement in arterial dilation. Simultaneously, we also observed that black tea consumption lowered blood pressure and reduced arterial rigidity, thereby improving the elastic capacity of the blood vessels."

"Maintaining vascular function, with drinking even a single cup of black tea suggests that black tea may help maintain healthy cardiovascular function in common tea drinkers. Further studies are needed to evaluate longer-term effects in different populations."

Dr. Douglas Balentine, Research Director at the Lipton Institute of Tea, added, "In recent years, a growing volume of scientific research has suggested that, as part of a healthy lifestyle, regular tea drinking may help maintain a healthy heart. In this new study, tea flavonoids appeared to play a role in maintaining healthy blood vessel function, which in turn could contribute to maintaining cardiovascular health. The study's results showing improved vascular function are also consistent with factors that could account for the results of a recent analysis in which regular tea drinking was associated with a significantly reduced risk of ischemic stroke."

"We are delighted to have helped fund this study and helped further our understanding of the role of tea in health and wellness - and particularly its potential to help maintain cardiovascular health. This new study provides further support that regular tea drinking may be one of the most actionable changes a consumer can make as part of a healthy lifestyle."

Tea is the second most consumed drink in the world after water, and is a major source of dietary flavonoid intake in Western countries and in the Middle and Far East. Although this study evaluated a limited population - healthy men - and further research is needed, its findings may ultimately be relevant to millions of tea drinkers globally.

A full copy of the research findings, Black tea consumption dose-dependently improved flow-mediated dilation in healthy males, will be published in The Journal of Hypertension in April 2009. The abstract is now available online at: http://journals.lww.com/jhypertension/Abstract/2009/04000/Black_tea_consumption_dose_dependently_improves.17.aspx

More information on this research, including a copy of the original research paper, and details on the Lipton Institute of Tea can be obtained by contacting Lucy Hensher at +44-20-8875-2696 / lucyh@saltlondon.com.

About the Lipton Institute of Tea

The Lipton Institute of Tea is Unilever's dedicated tea research facility, headquartered at Sharnbrook, just outside London in the UK. It is entirely Unilever funded, and works with both its own in-house experts and external tea researchers to uncover new physical and mental health properties pertaining to tea.

The Lipton Institute of Tea publishes regular academic papers, aimed at uncovering and sharing the physical and mental health properties of tea. It is responsible for publishing The Lipton Institute of Tea Quarterly Tea Science Review, a quarterly overview of key tea science research developments from both internal and external sources and compiled to share recent studies and findings to a broader, non-specialist audience.

The Lipton Institute of Tea also operates the world's most northerly tea 'plantation' at its Sharnbrook headquarters. This facility enables tea to be studied in a controlled environment, as representative samples of tea from around the world are grown. Here, the journey from bush to cup - through drying and processing - can be very much shorter than usual.

More information on the Lipton Institute of Tea can be found at: www.liptoninstituteoftea.org


'/>"/>
SOURCE Lipton Institute of Tea
Copyright©2009 PR Newswire.
All rights reserved

Related medicine news :

1. Stanford researchers find culprit in aging muscles that heal poorly
2. Children of depressed moms do better when dad is involved, SLU researcher finds
3. UCLA researchers identify markers that may predict diabetes in still-healthy people
4. Mayo Clinic researchers discover new diagnostic test for detecting infection in prosthetic joints
5. New research shows how chronic stress worsens neurodegenerative disease course
6. New research explores newborn in-hospital weight loss
7. Research may unlock mystery of autisms origin in the brain
8. Bipolar disorder relapses halved by Melbourne researchers
9. HIVs impact in Zimbabwe explored in new research
10. U.S. Research Funding Continues to Flatten as U.S. Health Costs Climb - in August 31 Science
11. Cell that triggers symptoms in allergy attacks can also limit damage, Stanford researchers find
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/2/2016)... ... December 02, 2016 , ... "Pro3rd Accents Volume 2 is a ... versatile lower third titles with just a few clicks of the mouse," said Christina ... 30 lower third animations. Choose from various styles with accented animations, rigid boxes, simplistic ...
(Date:12/2/2016)... ... December 02, 2016 , ... ... needy individuals and families from eight different sites throughout Miami-Dade and Broward counties. ... 1,000 volunteers worked very hard on Thanksgiving morning by putting together individual meals ...
(Date:12/2/2016)... Pass, OR (PRWEB) , ... December 02, 2016 ... ... Wein, Medical Technologist/Clinical Laboratory Scientist & Author of Type 2 Diabetes: The Owner’s ... host of The Sharon Kleyne Hour Power of Water, Global Climate Change and ...
(Date:11/30/2016)... ... 30, 2016 , ... The Fertility Centers of New ... Cigna Infertility Center of Excellence. The Cigna Center of Excellence recognizes participating infertility ... to be designated a Cigna Infertility Center of Excellence," said Fertility Centers of ...
(Date:11/30/2016)... , ... November 30, 2016 , ... "I hate when ... arm while brushing my teeth," said an inventor from Bridgewater, N.J. "I thought that ... develop this handy device." , He developed the patent-pending DEFLECTOR to prevent saliva and ...
Breaking Medicine News(10 mins):
(Date:12/2/2016)... -- Maxor National Pharmacy Services, LLC ("Maxor"), today announced that it ... combination of Texas -based Maxor Specialty / ... together both company,s clinical expertise and high-touch patient service models ... pharmacy. About Maxor ... , , ...
(Date:12/2/2016)... , December 2, 2016 Orthopedic Implants ... Support) is Expected to Gain a Significant Market Share Owing ... Ailments  ... According to a new ... Medical Implants Sterile Packaging: Clamshell Product Type Segment Projected to ...
(Date:12/2/2016)... YORK , December 2, 2016 ... 5,251.11, down 1.36%; the Dow Jones Industrial Average edged 0.36% ... at 2,191.08, down 0.35%. Losses were broad based as six ... Stock-Callers.com has initiated research reports on the following Services equities: ... (NASDAQ: QGEN ), INC Research Holdings Inc. (NASDAQ: ...
Breaking Medicine Technology: