Dietary information is obtained from patients by telephone during three 24-hour dietary recalls performed within 2 weeks of baseline and at the 3-month and 6-month follow-up visits to estimate total energy intake throughout the study. Patients complete questionnaires at baseline and periodically during study assessing demographic characteristics and established breast cancer risk factors, medical history, and health changes. Weight, adiposity as measured by waist circumference, quality of life, and depressive symptomology are assessed at baseline and at the 3- and 6-month follow-up visits.