Susanna Larsson, PhD, researcher in the Unit of Nutritional Epidemiology at the Karolinska Institute in Sweden, et al., concluded in their study titled "Milk and Lactose Intakes and Ovarian Cancer Risk in the Swedish Mammography Cohort," published in the American Journal of Clinical Nutrition, in Nov. 2004:

“Women who consumed greater than or equal to four servings of total dairy products per day had a risk of serous ovarian cancer twice that of women who consumed less than 2 servings per day. We observed a positive association between lactose intake and serous ovarian cancer risk.

Our data indicate that high intakes of lactose and dairy products, particularly milk, are associated with an increased risk of serous ovarian cancer but not of other subtypes of ovarian cancer.”

Nov. 2004