Inclusion Criteria:  At least 18 years old, BMI value to be ≥25 kg/m2, To be diagnosed with breast cancer stage I, II or III, Being a positive hormone receptor status, one of the biological subtypes of breast cancer, Having completed chemotherapy and / or radiotherapy treatment at least 6 months before starting the study, Not applying any treatment for body weight loss, Accepting to participate in the study, Perceiving disorder and not having communication problems.  Exclusion Criteria:  Being under the age of 18 and over the age of 65, BMI value to be 40 kg/m2, Having advanced stage breast cancer (IV and V), Being diagnosed with cancer or metastasis in other organs, Being one of the biological subtypes of breast cancer, hormone receptor status being negative, Using antioxidant vitamin-mineral supplements, Using herbal supplements, Being pregnant or planning a pregnancy, To stop working after starting diet therapy.