In case anyone missed this, I thought the info belonged on this thread.
Well, I can't seem to copy and paste the info or link to this page, but it is from Mayo Clinic and states that for women who drink, the risk of breast cancer is lowered if they take at least 400 mg of folic acid. Somewhere I also read that alcohol is mainly associalted with ER/PR + breast cancer.
You can try this below to read the study. (for some reason when I tried to edit the post it would not do so and the link is wrong. If you hit this link and get that it was incorrect, change the address to 2001 if it said 2002 and that should do it, I hope.
http://www.mayoclinic.org/news2001-rst/857.html