Obese Diabetics

The goal of this clinical trial is to achieve diabetes type 2 (DM2) remission using intensive lifestyle intervention. The main questions it aims to answer are: * Does intensive lifestyle intervention (including Mediterranean diet with a caloric deficit, daily physical activity, increase in stress resilience and group support) lead to DM2 remission (HbA1c\<6.5%, without medications) * Can intensive lifestyle intervention (including Mediterranean diet with a caloric deficit, daily physical activity, increase in stress resilience and group support) result to weight loss of \>15 kg * Does intensive lifestyle intervention result in any side effects (secondary outcome) Researchers will compare intensive lifestyle intervention to the usual clinical care (control group). Participants in the experimental group will: * eat Mediterranean diet with a caloric deficit * perform daily physical activity * increase their stress resilience with psychosocial support of the group * enroll weekly in individual and group counseling and workshops for 6 months, following with 1.5 years of follow-up