Although not as high in antioxidants as green tea, black tea has many health benefits in its own right. In addition, since it is inexpensive and more commonly used here in the United States, greater quantities are consumed.
Differences in Teas
True or real teas come from leaves, stems, and buds of the Camellia sinensis plant. This does not include the herbal teas, i.e. chamomile. Below is a list of real teas beginning with the most processed to the least:
- Black tea is made from leaves that are allowed to ferment after being harvested.
- Oolong tea has had its leaves fermented for only a short time.
- Green tea originates from leaves that have been dried directly after harvesting. The taste is somewhat bitter and most people do not care for it. It can be brewed in combination with black tea for benefits of both, half black and half green.
- White tea is the least processed with, as expected, the most antioxidants. It is rare and rather expensive. Leaves do not experience oxidation and are protected from sunlight, thereby producing no chlorophyll (the green pigment).
Black Tea’s Health Benefits
Tea is rich in antioxidants, including flavonoids, i.e., catechins, and polyphenols. It is these substances which produce many of the health benefits seen in numerous studies. This action is usually related to their mopping up of those pesky free radicals (result of oxidation). See the Tea Association of the U.S.A. for more information on its health properties. Below is a summary of some reasons why you should consume this beverage.
- Tea’s polyphenols and tannin act as antibiotics to prevent bacteria from causing tooth decay.
- Those same polyphenols have been seen in numerous studies to prevent cholesterol from oxidizing and clogging blood vessels. This protection is extremely effective as it blocks oxidized LDL damage in both the bloodstream and at artery walls, lowering the risk of both heart disease and stroke.
- Polyphenols in tea seem to help in preventing formation of potential carcinogens in the body, particularly in certain types of cancer, i.e. oral and lung.
- Teas appear to be beneficial in increasing insulin activity. See article for information on beneficial effects of polysaccharides in black tea on diabetes.
Tea Tips
Instant and bottled teas have low levels of flavonoids
Decaffeinated tea is a good option, but has about 10% fewer phytochemicals than caffeinated, according to 101 Foods That Could Save Your Life.
It is possible that the casein in milk added to your tea may interfere with the absorption of the catechins.
Make Tea Your Beverage of Choice
Everyone is aware of the health hazards in cold drinks and you may not be able to find your favorite when dining out, but tea is almost always available. Besides its health benefits, tea tastes good. Add lemon and/or stevia, a natural sweetener, and enjoy to your heart’s content.
References:
Yeager, Selene; Editors of Prevention. The Doctors Book of Food Remedies. Rodale, Inc., 2007
Grotto, David. 101 Foods That Could Save Your Life. Bantam Dell, 2007
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