Statement: Only Post menopausal women can enter the primary trial, as long as they do not have prior hormone replacement therapy.
Primary_evidence: Inclusion Criteria:   Female 18 + years of age   Confirmed diagnosis of DCIS on core or excisional/incisional biopsy and scheduled for definitive surgery   Pre or Post menopausal women reporting no use of hormone replacement therapy, tamoxifen or raloxifene within the prior 6 months to eligibility screening   Agree to avoid cruciferous vegetable/condiment intake for 14 days   Agree to sign an informed consent and allow use of some tissue (slides) from biopsy and definitive surgery for research purposes Exclusion Criteria:   Prior cancer diagnosis other than non-melanomatous skin cancer or cervical carcinoma in-situ   Used hormone replacement therapy, tamoxifen or raloxifene within the past 6 months prior to eligibility screening   Used antibiotics within 10 days prior to beginning cruciferous free diet (day -14 prior to surgery)   Smoked within the past 12 months prior to eligibility screening;   Active infection or inflammation of the breast at time of eligibility screening   Has baseline comprehensive metabolic panel (CMP) [Glucose, Calcium, Albumin, Serum total protein (TP), Sodium, Potassium, Carbon dioxide, Chloride, Blood urea nitrogen (BUN), Creatinine, Alkaline phosphatase (ALP), Alanine amino transferase (AST), Aspartate amino transferase (SGOT), and Bilirubin], prothrombin time (PT) and , complete blood count (CBC) values that are 1.5 times in either direction the reported normal range