Side Effect of Tea
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| Image taken from: drwillard |
A 2008 study showed that drinking hot or very hot tea may
increase your risk of developing esophageal cancer. The participants in this
Iranian study were at greater risk for esophageal cancer when they regularly
drank their tea at hot (65-69C / 149-156F) or very hot (over 70C / 158F)
temperatures.
The cancer risk was also greater when tea was consumed
within 3 minutes after pouring, rather than letting the tea sit for 4 or more
minutes before drinking. Nearly all of the study participants drank black tea
regularly, averaging just over 1 L (about 4 1/4 cups) per day. But, in this
study, the amount of tea consumed didn't significantly affect the possibility
of developing esophageal cancer.
Tea leaves from the Camellia sinensis tea plant (black,
oolong, pu-erh, green, and white teas) have naturally occurring fluoride and,
when you brew yourself a cup of tea, some of that fluoride seeps into your
drink. A side effect of drinking extreme amounts of tea is exposing yourself to
dangerously high levels of fluoride, which can lead to skeletal fluorosis, a
painful, debilitating bone and joint disease.
Most of us consume safe amounts of fluoride each day (2 to 3
milligrams from drinking water and toothpaste). However, if you regularly drink
excessive amounts of tea, you may have cause for concern about the health
effects of tea. For example, The New England Journal of Medicine published a
report about a woman who, for 17 years, routinely drank huge quantities of tea
(100-150 teabags daily, totaling over 20 mg fluoride) and developed skeletal
fluorosis. A recent study from Medical College of Georgia researchers suggests
that the amount of fluoride in tea could be higher than previously thought - as
much as 9 mg per liter (4 1/4 cups) of black tea.
All teas from the Camellia sinensis tea plant (black,
oolong, pu-erh, green, and white teas) naturally contain caffeine. While
caffeine is well-known for its benefits (such as increased energy, alertness,
and concentration), if your caffeine intake climbs too high or if you're
sensitive to caffeine, you may experience some caffeine side effects.
Common caffeine side effects include increased heart rate,
anxiety, restlessness, difficulty sleeping, dehydration, immediate-onset
diarrhea, excessive urination, PMS, panic attacks, depression, tremors, and
more. And keep in mind that caffeine is a drug, so if caffeine is a mainstay in
your diet, be careful if you decide to cut back or eliminate it altogether.
Reduce your intake slowly, or you may experience some withdrawal symptoms -
like headaches, irritability, nausea, or grogginess. If you are watching or
cutting back on your caffeine intake, consider a naturally caffeine-free herbal
tisane, such as Rooibos, cinnamon, or hibiscus tea. Remember, though, yerba
mate (even though it is an herbal tea) does contain caffeine.
After we know
about this fact, it will be better if we can drink tea with right way
and portion. Don’t transform our beneficial drinks become the risk one. Well,
have a good day everyone. See you next time.
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