So in that movie, The Departed when the guy orders Cranberry Juice, they all ask him : What is it your period?


Anyways, How does Cranberry Juice help a woman when she is PMSing?

it is a cultural practice in some communities, i guess Irish.

Like in Oman, if you have renal stone they give 7ilba, or Barbican...


Cranberry Juice is believed to reduce the cramps associated with menstrual cycle. This is because it is very rich in potassium like banana's. In the movie it was used as a joke.

it is not well documented or proved that Cranberry Juice really helps during menstrual cramp...

Randomized clinical trial were carried out to find the effect of the juice on the following problems: (studies been published in certified journals)
Bladder infection
cardiovascular risk, reduces cholesterol