update Apr 9th: Ovarian, Fallopian Tube, and Peritoneal Cancer Prevention - NCI

National Cancer Institute

 It is not clear whether the following affect the risk of ovarian, fallopian tube, and primary peritoneal cancer:

Diet

Studies of dietary factors including various foods, teas, and nutrients have not found a strong link to ovarian cancer.

Alcohol

Studies have not shown a link between drinking alcohol and the risk of ovarian cancer.

Aspirin and non-steroidal anti-inflammatory drugs

Some studies of aspirin and non-steroidal anti-inflammatory drugs (NSAIDs) have found a decreased risk of ovarian cancer and others have not.

Smoking

Some studies found a very small increased risk of one rare type of ovarian cancer in women who were current smokers compared with women who never smoked. (blogger's note: cell type is mucinous)

Talc

Studies of women who used talcum powder (talc) dusted on the perineum (the area between the vagina and the anus) have not found clear evidence of an increased risk of ovarian cancer.

Infertility treatment

Overall, studies in women using fertility drugs have not found clear evidence of an increased risk of ovarian cancer. Risk of ovarian borderline malignant tumors may be higher in women who take fertility drugs. The risk of invasive ovarian cancer may be higher in women who do not get pregnant after taking fertility drugs.