BREADS: Breast Adjuvant Diet Study

Inclusion Criteria

• •Histologically confirmed breast cancer
• •Planning to start adjuvant hormonal therapy using an aromatase inhibitor or has started adjuvant hormonal therapy using an aromatase inhibitor
• •Able to read, write, and understand English
• •BMI ≥ 24 kg/m2
• •Age ≥ 18 years
• •ER and/or PR positive (defined as having ≥ 1% staining for ER and/or PR on IHC)
• •Post-menopausal
• •* The absence of menstrual cycles in women who have not undergone hysterectomy for at least 12 months preceding cancer diagnosis OR
• •* History of a bilateral oophorectomy OR
• •* History of a hysterectomy and age \>55 OR
• •* No menses for \<1 year with FSh and estradiol levels in postmenopausal range according to institutional standards
• •ECOG Performance Status 0 or 1
• •Female
• •Written informed consent obtained from subject and ability for subject to comply with requirements of the study