Green tea side effects can include increased urination, rapid heart beat, headache, insomnia, anxiety, nervousness and other problems that are primarily related to its caffeine content. You can avoid unwanted side effects of green tea and still get the health benefits by taking a supplement that includes the extract. The extracts have little or no caffeine content.
People that love the beverage often limit their intake because of the green tea side effects that are caused by caffeine. Although the content is about half of what you will find in an equivalent cup of coffee, it is still enough to be concerned about. The content varies from plant to plant and even from cup to cup. A longer brew time may increase the content, but most of the caffeine is actually extracted during the first minute of steeping.
Other than those caused by the caffeine, there are no other known side effects of green tea, as long as a person doesn’t go overboard. There has been some indication of toxicity to the liver at very high concentrations, but this has only been found in laboratory studies. No toxic effects have ever been seen in humans, even at very high dosages with concentrated extracts.
Now, that you know a little more about the possible green tea side effects, you might be interested in the health benefits. There are actually a number of possible benefits, having to do with the antioxidants and other polyphenols found in the leaves.
Source : articlesbase
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