What happens when you drink too much tea?

Anxiety, kidney failure, constipation, sleep disorders, cardiovascular damage, cancer... are health problems that occur when you drink too much tea.

Tea is a popular drink much loved around the world. However, like any drink, food, excessive consumption of tea also causes many unpleasant side effects on health.


Caffeine content in tea works well for some people, but it affects many others. Drinking too much tea can lead to restlessness, anxiety, increased heart rate and sleeplessness.



If you depend on tea or coffee for a long time, you will have trouble limiting these beverages and encounter some symptoms such as headaches, fatigue, difficulty concentrating...

Bone fluoride poisoning

This is one of the most dangerous health problems of drinking too much tea. Tea has a high concentration of fluoride causing bone poisoning, resulting in pain.



Prostate cancer

This is the worst side effect of drinking too much tea. People who drink too much tea per day increased 50% risk of developing prostate cancer.


Kidney failure

This is a rare side effect when you drink a lot of tea, including iced tea, however, this scenario could still occur. Recently, there's a 56-year-old American with kidney failure related to too high consumption of tea.



Many people believe that drinking tea in the morning is good for digestion, but using too much can be harmful. A chemical called theophylline in tea can cause dehydration in the intestines, leading to constipation.



Stomach damage

Caffeine in black tea can produce acidic substances in your stomach. Therefore, those who are experiencing stomach problems such as stomach ulcers should not drink black tea.


Cardiovascular problems

People who have heart disease or are recovering from cardiovascular disorders should avoid black tea. Caffeine in tea is not good for the cardiovascular system.



Caffeine in tea can harm the fetus, leading to miscarriage. Therefore, pregnant women should avoid drinking tea or coffee.


Diuretic and sleep disorders

Caffeine in tea is mild diuretic, but is harmful if used excessively (about 300 mg of caffeine equivalent of six cups of tea). It can disrupt sleep and cause fatigue.

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