Inclusion Criteria:  Mastectomy or conservative surgery for invasive breast cancer, any type, in the last five years (the investigators recruited mostly patients at the time or after surgery, when chemotherapy has been concluded and hormonal therapy, if necessary, has been started) Absence of signs or symptoms suggestive of recurrences Presence of one or more of the following endocrine/metabolic indicators: serum testosterone level ≥ 0.4 ng/ml (1 nmol/ml), corresponding to the median value in BC patients, or serum insulin ≥ 50 pmol/L, corresponding to the upper quartile of insulin distribution in Breast Cancer patients, or metabolic syndrome, present in about 15% of Breast Cancer patients.  Exclusion Criteria:  Metastatic disease or previous relapse Age >70 Physical or mental handicaps that would have impeded to engage in moderate physical activity or participate in kitchen classes