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Harmful effects of Tea

Updated on May 21, 2012

Tea is a great discovery that has made our life very easy. Am I right or wrong..??? Tea is almost like an addictive drink for most of the people. But does anyone even know whether how tea is very harmful also at the same time to all of us. But the leading brands of tea would never disclose this news that I would be giving you on my article.

The top ten harmful effects of tea.

1- As per as the new study by Rutgers University scientists have found new research that tea is harmful to us as it causes chromosome damage and also fetal leukemia. This was reported by the edition of The Washington times online.

2- Tea extracts also have a compound name as phytochemicals which are in plant-derived foods that effects our biological activity in the body. This can really cause dangerous side effects into us. This was said by Joshua Lambert, the lead author of the university.

3-Tea is a big source of slowing down our digestion. Tea contains an element called ptyalin, this is a kind if digestive ferment of saliva. Tanin is responsible for this condition, but we often use milk so however it gets disappears when we do so since milk precipitates milk. But since tea delays our stomach digestion that could lead us to gas formation diarrhoea and constipation as well.

4- Tea is also a major cause for kidney disorder. Experiments have been proved that 5 cups of tea increases a persons urine by 400- 500%. This continuous process of stimulation for consuming caffeine might damage them. Tea also creates kidney stone as it contains high concentration of oxalate.

5- Tea also causes Premenstrual syndrome as people who usually drink 1- 4 cups of tea everyday as likely to have Premenstrual syndrome than the non tea drinkers. People who drink 8 cups of tea or even more have chances for Premenstrual syndrome almost 10 times.

6- Drinking to much of tea leads to incontinence which makes urgent impulse for frequent urine. As per as the recent study caffeine exerts pressure onto the bladder that leads to muscle surrounding which in returns increases the need of urinate.

7- Due to caffeine the respiratory and cardiac muscle also get stimulated leading to coronary arteries which gets diluted as a result increases into the rate of blood flow. The fastening of respiration lowers the carbon dioxide level.

8- Tea is also a source of element that can increase th toxicity in human body. People who take in large amount of tea would go through this. The younger leaves of tea lack the quantity of aluminum whereas the older tea leaves are the actual source. For avoiding this picking of the tea leaves leads to the reason.

9- Tea also leads to insomnia. This is a good source of alerting you mentally and physically too as its large amount induces to insomnia. It only effects for people who are addicted to tea. This also causes sleeping disorders that are quite common which affect the health of humans in a negative order. Researchers have proved this and has rather recommended to have less of tea in order to stay fit.

10- tea is a source of esophageal cancer as per as the study. Esophagus is a canal that links the oral cavity to your stomach and when you drink a very hot tea this canal gets damaged, as a result it leads to this disease. To avoid this a warmer tea is better to take in. If you try to follow this method of waiting thus could lead to lowering the rik of this esophageal cancer.


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    • profile image


      14 months ago

      Sir, I have written article TEA and COFFEE sweet poison. I desired I will forward the to you. Thanking you.

    • profile image


      15 months ago

      This post was very helpful. Thank you Alex. :)

    • profile image


      22 months ago

      I have been drinking tea for several years and have never had any issues with above mentioned article, quite the opposite in fact. Tea, by far passes the best beverage to drink than alcohol, coffee, soda's. It's really about moderation, how many drinks do you consume a day? How much sugar do you use in a cup of tea? Moderation is the key. If you drink 4-6 cups of coffee a day, are you at risk for incontinence an insomnia? Absolutely, coffee as well as tea are natural diuretics and both contain caffeine, however; tea contains less caffeine. You may also purchase decaffeinated tea and coffee as well. If you drink copious amounts of liquid of any kind can cause toxicity, even water. Through studies tea may also reduce your risk for heart attack or stroke.

    • profile image

      Adrian Hayhurst. 

      2 years ago

      I find your comments on tea very interesting. I have recently given up alcohol and replaced my drink for tea.Tea must be better than drinking large amounts of lager each day.However after reading this I am at a loss of what to drink other than water.

      Thanks for the info.

    • profile image


      3 years ago

      I didn't got my answer but i got inspiration after study the above i am also a hidden scientist

    • profile image


      3 years ago

      I didn't got my answer but i got inspiration after study the above i am also a hidden scientist

    • profile image


      3 years ago

      It's very important for those who are younger...i like it much more...i have bad habits of tea

    • profile image


      4 years ago

      Where are the link to evidence for this article? You can say whatever you like but you need to back it up, your learn that in school!

    • profile image


      4 years ago

      dear one, taking tea not only slow our digestive system. but also it make lithargy, constipation and invite many diseases, it also reduces physical activities if take it in large amount, many time it lead to us not able to take proper divisions,

      thank you, for right information

    • profile image

      Afrikan Eagle 

      4 years ago

      What is it in the world that is safe? Don't eat this. eat, this. Don't drink that, drink that. No one will leave this world alive any way. Reading all these so-called "scientific studies" may only be adding to the stress that would eventually kill us all.

    • Alex Jose profile imageAUTHOR

      Alex Jose 

      4 years ago from Cleveland, Ohio

      Thank you so much everyone for your feed back.

    • jasmine19 profile image


      4 years ago from Faridabad

      Quite an informative article. I am a great lover of tea but after reading this I don't still think that I can stop drinking tea, but definitely I'll reduce its consumption. Thanks.

    • profile image

      Real Person 

      4 years ago

      My grandmother who is 93 has consumed several cups of tea with milk daily. Not to say your facts are incorrect but I look at my elders for real evidence!

    • drpennypincher profile image

      Dr Penny Pincher 

      5 years ago from Iowa, USA

      I think most of these health effects apply to foods containing caffeine in general. I have tea on some of my lists of low-cost healthy foods, so I'll investigate. Thanks for the info!

    • idigwebsites profile image


      5 years ago from United States

      Really? I thought that the caffeine content in tea is weaker compared to coffee's so recently I've been making this as an alternative hot beverage. Yes, I do suffer PMS sometimes, and most of the cramps are really awful. Thanks for sharing, it's helpful.

      Up, useful and a following. :)

    • profile image


      5 years ago

      You need a new editor. Your sentence structure is incorrect most of the time, there are numerous spelling errors, and you have used incorrect contractions and homonyms. You refer to many 'studies', but never actually give a reference. The references you have used for your 'facts' are incorrectly notated, making them impossible to find. Your conclusions are, therefore, pretty specious.

    • Darknlovely3436 profile image


      6 years ago from NewYork

      Great hub, very informative

    • Angela Brummer profile image

      Angela Brummer 

      6 years ago from Lincoln, Nebraska

      Oh my I had no idea I gave up diet soda of tea not what am I going to replace my tea with!

    • Lady_E profile image


      6 years ago from London, UK

      Interesting. I didn't know it had so many harmful effects. I wonder if decaffeinated has any less.

      Lol @tobusiness. So True. We love our cuppa tea.

    • barbergirl28 profile image

      Stacy Harris 

      6 years ago from Hemet, Ca

      I am not a tea drinker however, I was thinking about starting to drink some because of all the benefits. Never realized there were harmful effects. Thanks for sharing!

    • Gloshei profile image


      6 years ago from France

      This is very interesting I had no idea that tea could be so harmful. I will lessen my intake from now on.

      I knew tea contained caffeine but did not realise it slowed the digestive system down.

      Voted up and interesting thank you.

    • leigh anns page profile image

      leigh anns page 

      6 years ago from New Jersey

      Thanks for the information. Who knew tea could cause problems such as this

    • Neil Sperling profile image

      Neil Sperling 

      6 years ago from Port Dover Ontario Canada

      Interesting - All things in moderation no doubt is best solution. thanks for sharing

    • mistyhorizon2003 profile image

      Cindy Lawson 

      6 years ago from Guernsey (Channel Islands)

      It would be nice to see some links to reliable sources of this information, as otherwise people may find it very hard to treat the info as credible based on statements alone. Just a suggestion, as us Brits have been drinking tea since, well, pretty much forever (at least it feels like it), and most of the stuff listed here is not a big issue in the UK.

    • Alex Jose profile imageAUTHOR

      Alex Jose 

      6 years ago from Cleveland, Ohio

      thanks for your valuable comments

    • profile image


      6 years ago

      Some of these things are new to me, so thanks for informing us. I used to drink Snapple all the time, but I gave it up along with sodas.

    • Ranzi profile image

      Cut The Bullshit 

      6 years ago from All Over

      Wow! Can't believe it. Don't know what to trust any more.

      Excellent hub. Voted up and useful.

    • Alex Jose profile imageAUTHOR

      Alex Jose 

      6 years ago from Cleveland, Ohio

      Thank you everyone for appreciating this hub.

    • sammimills profile image


      6 years ago from California, USA

      Thank you for sharing! Really helpful. Didn't know tea could be this harmful. I have a friend who drinks 2 cups of tea a day. I would definitely share this one to him. Great information!

    • AudreyHowitt profile image

      Audrey Howitt 

      6 years ago from California

      Interesting--we tend to hear the opposite--that tea is good for us--

    • Dee aka Nonna profile image

      Dee aka Nonna 

      6 years ago

      Great information. Most of this I'd not ever heard before. I love tea and I also love coffee but it has never become an addiction for me. I can have a cup of either or not. I drink more for the pleasure of relaxing. And never more than a cup or 2 per day. Some days none.

      Voted up and useful.

    • coffeegginmyrice profile image

      Marites Mabugat-Simbajon 

      6 years ago from Toronto, Ontario

      A cool thing to know as we often find articles how tea could be best for us compared to coffee. I am not much of a tea drinker every morning as I get out of bed, but I do drink tea (green, chamomile or cranberry flavoured) alternating it with coffee. I only drink any "extra" of my coffee after pouring them onto my rice with fried egg, lol. I cannot afford to let it down the drain. :)

      Useful information. Voted useful and sharing! Thank you for putting it up, Alex. Good day to you!

    • snigdha.s profile image


      6 years ago from India,mumbai

      Tea is definitely addictive and I have tried to stop drinking tea but failed . Got addicted to it at a very tender age of 4 in boarding school where we were given tea twice.Tried to leave this bad habit when i finished my board and even succeeded to some extent.I abandoned tea for almost a year only to start drinking tea again. It is indeed very difficult .Tried to substitute tea with many other drinks but nothing worked.Still trying Hope this Hub helps me stop drinking tea eventually.great Hub Alex. Voted up

    • rebeccamealey profile image

      Rebecca Mealey 

      6 years ago from Northeastern Georgia, USA

      Wow! I did not know any of this! Thanks for sharing!

    • Super Lux profile image

      Super Lux 

      6 years ago from Singapore

      i'm a tea drinker. this is a great eye-opener for me. i think everything should indeed be taken in moderation, even for something as good as tea.thanks.

    • Alex Jose profile imageAUTHOR

      Alex Jose 

      6 years ago from Cleveland, Ohio

      Thanks Rahul and Frank for your sincere comments.

    • rahul0324 profile image

      Jessee R 

      6 years ago from Gurgaon, India

      Great information my friend! i will limit myself from now on :)

    • Frank Atanacio profile image

      Frank Atanacio 

      6 years ago from Shelton

      very interesting my friend.. had no idea thanks for the share

    • Vinaya Ghimire profile image

      Vinaya Ghimire 

      6 years ago from Nepal

      I love drinking tea even though I have read quite lot on the side effects.

      The latest finding makes me cringe, but then I will be limiting numbers of cups but not abandon tea.

      Thanks for sharing your knowledge.

    • Levertis Steele profile image

      Levertis Steele 

      6 years ago from Southern Clime

      I know that #'s 4, 6, 7, and 9 are caused by some teas, more specifically, those with caffeine. Breast cancer has been linked to caffeine, which is found in some teas. Many teas do not contain caffeine. I especially like the Celestial Seasons decaffeinated brand and some others. The other effects you have listed are new to me.

      I can think of nothing better than settling down to relax with a good book and a nice cup of hot tea that is right for my health.

      Thanks for sharing.

    • Millionaire Tips profile image

      Shasta Matova 

      6 years ago from USA

      Welcome to HubPages. I have suffered from some side effects of tea, so I can say that tea can have harmful effects. Can you provide links to the studies you mentioned, so that we can check them out ourselves?

    • rajan jolly profile image

      Rajan Singh Jolly 

      6 years ago from From Mumbai, presently in Jalandhar,INDIA.

      Alex, I agree the way WE make tea, just keep it simmering for some minutes is bad. This extracts so much of tannin.

      Also, excessive drinking of tea is definitely harmful.

      Thanks for sharing this hub and welcome to hubpages.

    • Mr. Happy profile image

      Mr. Happy 

      6 years ago from Toronto, Canada

      "Drinking to much of tea" - what does too much mean? How does one measure "too much"?

      "Due to caffeine" - Not all teas contain caffeine.

      "Tea also leads to insomnia" - Which teas are You talking about? I am starting to be confused. Chamomile tea will actually put You to sleep. This knowledge is thousands of years old ...

      I think You should be a little more specific perhaps.

      Thanks for the information though, interesting perspective regarding tea. All the best!

    • Alex Jose profile imageAUTHOR

      Alex Jose 

      6 years ago from Cleveland, Ohio

      Thanks a lot Ruchira...for reading this hub...and for your comment as well.

    • Alex Jose profile imageAUTHOR

      Alex Jose 

      6 years ago from Cleveland, Ohio

      Thanks for stopping by Deborah...well green is also good but too much of any kind of tea is bad for health...take care.

    • Ruchira profile image


      6 years ago from United States

      gosh...I am a big fan of tea (just one cup though!)

      and after reading the above...makes me feel awful.

      voted up as useful tips and sharing it across. Thank you for an enlightening hub, alex.

    • Deborah Brooks profile image

      Deborah Brooks Langford 

      6 years ago from Brownsville,TX

      I drink tons of water.. but I was told green tea is very good for you.. welcome to the hub..

      great hub


    • Alex Jose profile imageAUTHOR

      Alex Jose 

      6 years ago from Cleveland, Ohio

      Thanks RJ for your comments

    • Reynold Jay profile image

      Reynold Jay 

      6 years ago from Saginaw, Michigan

      I'll stick to water please! No tea for me. I've never had tea of coffe in my entire life. Now I know why!!! Well done informative and UP.

    • sgbrown profile image

      Sheila Brown 

      6 years ago from Southern Oklahoma

      Very interesting hub. I agree that too much of anything can be bad for you. I am a coffee drinker in the morning and a tea drinker in the afternoon. I hope I am not doomed! Very interesting information. Voted up and interesting. Have a great day! :)

    • Au fait profile image

      C E Clark 

      6 years ago from North Texas

      Very interesting. Seems like only yesterday we were hearing all of the advantages of green tea. I'm neither a coffee drinker nor a tea drinker. Caffeine tends to be addictive and that's why many people start drinking tea/coffee/some soft drinks, and then depend on those drinks to wake themselves up and stay that way.

      Voting you up and interesting. Welcome to Hubpages!

    • Alex Jose profile imageAUTHOR

      Alex Jose 

      6 years ago from Cleveland, Ohio

      I do agree and I myself drink tea...But what I am trying to say that how too much of anything can be bad :)

    • tobusiness profile image

      Jo Alexis-Hagues 

      6 years ago from Lincolnshire, U.K

      What ever you do, don't tell the Brits. tea is bad for them.

      You may just start a war. Seriously, if you look closely at anything, you will find some negatives so every thing in moderation, except tea of course, hands off our tea.


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