Inclusion Criteria:  Age at the time of BS ≥18 years Patients who underwent primary SG at least 2 years ago and regained at least 10% weight from nadir. Read and speak Hebrew.  Exclusion Criteria:  Patients who underwent more than one BS in their past. Use of weight loss drug therapy currently or 1-month prior to trial entry. Currently attending a weight loss program and lost more than 5% of weight at the last month. Current pregnancy and women who gave birth in the last 6 months. Medical contraindications such as active cancer, organ transplant or unbalanced psychiatric disorders.