None: There are no "harmful" effects of green tea on your menstrual cycle. If you are having irregular bleeding or abnormal cycles, the question might be better posed with the specific symptoms that you are experiencing.
Answered 9/5/2013
4.9k views
TCM: n Traditional Chinese Medicine drinking green tea is not recommended during menses. It is reported that during menstruation women may lose 18 to 21 mg of iron in association w blood loss. The tannins in green tea can adversely impact absorption of iron through intestinal mucosa. The tannic acid may also ^ possibility of constipation.
Answered 10/20/2015
2.1k views
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