The purpose of this study is to establish feasiblity of recruiting obese breast cancer survivors at the end of treatment, getting those survivors to lose weight and attend follow-up visits for 6 months.

Breast cancer related lymphedema occurs in 20-30% of survivors. Weight loss could prevent onset. We seek to do a pilot study to establish feasibility of 1) recruiting survivors at risk for lymphedema to do a weight loss intervention, 2) achieving 10-15% weight loss over 26 weeks in this population, and 3) attendance at follow-up visits 6 months.

Inclusion Criteria:

• Women
• Breast Cancer Survivors who had 5 or more lymph nodes removed and radiation to lymph nodes as part of treatment.
• Completed all treatments - no metastatic cancers
• Overweight or obese (BMI greater than or equal to 25 kg/m2)
• Medically and logistically able to participate in a weight loss and exercise program over 6 months.
• Diagnosed with breast cancer within the past 2 years.

Exclusion Criteria:

• More than 2 years since breast cancer diagnosis
• Medical status that would preclude safety of participation in a weight loss and exercise program
• Metastatic cancer
• Already enrolled in a weight loss program

Women, aged 18-70, who are obese (BMI greater than or equal to 30), do not already have a diagnosis of lymphedema, who are done with surgery, chemotherapy, and radiation therapy, and who were diagnosed with breast cancer within the past 2 years will be invited to participate.