Inclusion Criteria:  Stage I-III breast cancer diagnosis Between 1-4 years post-breast cancer diagnosis Obese (body mass index greater than or equal to 30 kg/m^2) Postmenopausal (at least 1 year post-menses) Ability to access and use internet resources, including Zoom video calls English speaking  Exclusion Criteria:  Diagnosis of type 2 diabetes mellitus Unwillingness to complete finger prick for blood collection