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The health effects of black tea and flavonoids

Article Information:

Title:

The health effects of black tea and flavonoids

Author(s):

Carrie H.S. Ruxton

Journal:

Nutrition & Food Science

Year:

2009

Volume:

39

Issue:

3

Page:

283 - 294


ISSN:

0034-6659


DOI:

10.1108/00346650910957546

Publisher:

Emerald Group Publishing Limited


Acknowledgements:

This review was funded by the Tea Advisory Panel. The Tea Advisory Panel is supported by an unrestricted educational grant from the UK Tea Council, the trade association for the UK tea industry. For further information please call 0207 705 8989. The content reflects the opinion of the author.

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Abstract:

Purpose – The purpose of this paper is to review evidence on the impact of black tea on health, highlighting the role of flavonoids.

Design/methodology/approach – This review builds on previous systematic reviews by incorporating new studies on black tea and health published between 2004 and 2009.

Findings – Black tea was strongly associated with heart disease prevention by plausible mechanisms linked to flavonoid bioactivity. In vitro studies suggest that tea has anti-cancer properties, but this needs to be confirmed by additional long-term human studies. Emerging research indicates that tea may benefit cognitive function and weight management, although more studies are needed. Tea flavonoids are bioavailable with or without milk.

Originality/value – The benefits of tea drinking are of relevance to public health as tea is the main contributor to dietary flavonoids in Western countries. Consuming one to eight cups of black tea per day is associated with a reduced risk of chronic disease. Caffeine intakes at this level are moderate.

Keywords:

Cardiovascular disease, Personal health, Tea


Article Type:

Literature review


Article URL:

http://www.emeraldinsight.com/10.1108/00346650910957546

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