Current Research about Black Tea Health Benefits

Black tea health benefits have been overshadowed for awhile now by our growing fascination with the multitude of health benefits provided by green tea. However, don't let the popularity of green tea distract you from the miracle of black tea! There are many reasons why black tea is the most beloved and savored of all teas around the world.

Current research about the health benefits of black tea reveals how good this tea is for us in so many ways - from protection against disease to improved heart health to increased bone strength and much, much more.

Here is what recent studies have found about black tea health benefits. 

Black tea may help manage - and even prevent - diabetes

In a 2009 study, researchers at the Tianjin Key Laboratory in China targeted the effectiveness of black, green, and oolong teas in controlling diabetes, with a specific focus on polysaccharides. Polysaccharides are a form of carbohydrate that can slow blood sugar absorption, which may help diabetics manage the effects of the disease.

In this study, black tea's polysaccharides were found to be very effective in slowing the absorption of glucose - more effective than the polysaccharides found in green and oolong teas.

The study also revealed that the polysaccharides in black tea are very effective in fighting free radicals. (Free radicals not only age us, but they contribute to the development of chronic disease, such as cancer, diabetes, heart disease, and rheumatoid arthritis, as well.)

Just the facts, please...

If you're not really interested in the research, but still want to learn more about the many ways black tea is good for you, click here to view a summary of the benefits of drinking black tea.

You can read the full research article for this study here.

Black tea health benefits

More black tea health benefits... Drinking black tea may protect you from developing diabetes, according to research from Data Mining International in Switzerland. In an analysis of data regarding black tea consumption and disease rates from 50 countries in the 2009 World Health Survey, the research revealed that countries that drank the highest amounts of black tea had the lowest occurrence of type 2 diabetes.

An additional bonus was uncovered, as well - higher black tea consumption was also related to lower levels of obesity.

Black tea, during processing, is oxidized (fermented) more than other types of tea (green, white, oolong, and pu-erh), resulting in very high levels of two types of antioxidants - theaflavins and thearubigins. Black tea's potential ability to prevent diabetes may be due to its unique oxidation process and distinctive antioxidants.

Read a summary of this study here or, if you'd rather read the full journal article, you can find it here.

Another study supporting the connection between black tea consumption and a reduced risk of diabetes involved over 1000 older men and women (aged 65 to 100) residing on various Mediterranean islands.

Results from this study (which took place between 2005 and 2007) revealed that regular, long-term consumption of black or green tea can significantly lower fasting blood sugar levels, leading to a lower chance of developing diabetes.

Black Tea Benefits & You!

We'd love to hear about your experience with black tea! If black tea is one of your favorites (just for its delicious taste, or for its many health benefits, too), why not share your thoughts and opinions? Share your story here (and see what others are saying about this amazing brew, too)!

Study participants who had consumed one to two cups of black or green tea each day for 30 years or more had a 70% lower risk of developing diabetes.

Click here if you would like to read this research article.

Black tea health benefits for bone strength and density

In a 2002 Taiwanese study involving over 1000 male and female participants over the age of 30, research results revealed that habitual tea drinkers who drank black, oolong, and/or green tea at least once a week for six or more years had a higher overall bone mineral density (BMD) than those who didn't drink tea on a regular basis. Proportionately higher BMD in the total body, hip, and lumbar regions occurred after ten years' regular tea drinking.

Low BMD is linked to increased risk of osteoporosis and bone fractures.

In this study, the duration of tea consumption was found to be more important than the amount of tea consumed each day. If you would like to read more about this study, click here.

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That's not all - you'll find more current research about the health benefits of black tea here!

You may be a black tea drinker simply because you love the soothing comfort of a mug of hot black tea with milk and sugar. Or, black tea may be a regular in your tea repertoire not only because you love the taste, but because you rely on black tea health benefits for good health and overall wellness, too. Whatever your reasons for loving black tea, this rich, full-flavored tea will satisfy your taste buds and nurture your body and mind, as well.

Why not try...

  • Expanding your taste buds beyond your favorite black tea bags... Loose leaf black tea is available in countless unusual, delectable flavors, and you may find you prefer the richness and depth of flavor found in loose-leaf teas, as compared to tea made from tea bags. Give it a try - you won't regret it!

Black tea has so many benefits, but does it have any side effects or risks?

The news is filled with information about how tea is good for our health and wellness, but, if you are planning to add high amounts of any tea to your daily routine, it's important that you stay up-to-date on any possible risks in drinking tea. Especially if you are pregnant or nursing, are taking any prescription medications, or are currently being treated for cancer, be sure you check with your healthcare provider about safe levels of black tea consumption for you.

You can also learn more about potential side effects of drinking tea here

If you have any questions or concerns about black tea health benefits, schedule a visit to your healthcare provider - she or he would be happy to help!

More about Black Tea Benefits

Benefits of Black Tea - Black tea is the most popular tea around the world - and not just for its delicious, comforting taste! Learn more about the benefits of our favorite tea here. 

Black Tea Benefits & You! - See what other visitors to our site are saying about black tea benefits for health and wellness, and why not share your own thoughts, opinions, and advice about black tea, too?

Black Tea Research - Interested in what recent research has to say about black tea? Visit our Black Tea Research pages to read up on current scientific studies targeting this healthful brew. 


Arab L, Liu W, Elashoff D. Green and black tea consumption and risk of stroke: a meta-analysis. Stroke. 2009 May;40(5):1786-92. 

Arent SM, Senso M, Golem DL and McKeever KH. The effects of theaflavin-enriched black tea extract on muscle soreness, oxidative stress, inflammation, and endocrine responses to acute anaerobic interval training: a randomized, double-blind, crossover study. Journal of the International Society of Sports Nutrition. 2010;7:11 

Bahorun T, Luximon-Ramma A, Neergheen-Bhujun VS, Kumar Gunness T, Googoolye K, Auger C, Crozier A, Aruoma OI. The effect of black tea on risk factors of cardiovascular disease in a normal population. Preventive Medicine. 54:S98-S102.

Chen H, Qu Z, Fu L, Dong P. and Zhang X. Physicochemical Properties and Antioxidant Capacity of 3 Polysaccharides from Green Tea, Oolong Tea, and Black Tea. Journal of Food Science. 2009;74: C469–C474. 

Duffy SJ, Keaney JF Jr, Holbrook M, Gokce N, Swerdloff PL, Frei B, Vita JA. Short- and long-term black tea consumption reverses endothelial dysfunction in patients with coronary artery disease. Circulation. 2001 Jul 10;104(2):151-6.

Gawlik M, Czajka A. The effect of green, black and white tea on the level of alpha and gamma tocopherols in free radical-induced oxidative damage of human red blood cells. Acta Pol Pharm. 2007 Mar-Apr;64(2):159-64.

Jones C, Woods K, Whittle G, Worthington H, Taylor G. Sugar, drinks, deprivation and dental caries in 14-year-old children in the north west of England in 1995. Community Dent Health. 1999 Jun;16(2):68-71.

Leung LK, Su Y, Chen† R, Zhang Z, Huang Y and Chen Z. Theaflavins in Black Tea and Catechins in Green Tea Are Equally Effective Antioxidants. J. Nutr. 2001 September 1;131(9)2248-2251.

Linke HA, LeGeros RZ. Black tea extract and dental caries formation in hamsters. Int J Food Sci Nutr. 2003 Jan;54(1):89-95.

Panagiotakos DB, Lionis C, Zeimbekis A, et al. Long-Term Tea Intake is Associated with Reduced Prevalence of (Type 2) Diabetes Mellitus among Elderly People from Mediterranean Islands: MEDIS Epidemiological Study. Yonsei Medical Journal. 2009;50(1):31-38.

Peters U, Poole C and Arab L. Does Tea Affect Cardiovascular Disease? A Meta-Analysis. Am. J. Epidemiol. 2001;154 (6):495-503. 

Steptoe A, Gibson EL, Vounonvirta R, Williams ED, Hamer M, Rycroft JA, Erusalimsky JD, Wardle J. The effects of tea on psychophysiological stress responsivity and post-stress recovery: a randomised double-blind trial. Psychopharmacology. 2007 January;190(1):81-89.

Wu C, Yang Y, Yao W, Lu F, Wu J, Chang C. Epidemiological Evidence of Increased Bone Mineral Density in Habitual Tea Drinkers. Arch Intern Med. 2002;162(9):1001-1006. 

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