For reducing fat and keeping it from regaining, you should eat very less outside, packed and processed food, should not be more than 10% of total intake. Reduce intake of rice, wheat & milk based food, should not be more than 30-40% of total intake. Have lower intake of sugar, oil & salt. Increase intake of natural food like fruits, vegetables, nuts & seeds & lentils. Should be more than 50% of total intake. With this formula you will reduce weight and will never regain.