My BMI is approx. 45. I have been struggling with losing weight for many years now, and I seem to just lose only 1-2 lbs and then gaining it to get back to where I started out. I eat lots of vegetables everyday, try to limit the sugar and unhealthy fat intake to a minimum. I rarely eat unhealthy. I am very focused on losing weight. I have a low metabolism, but I am medicated to keep it in balance. It has recently been checked, and the metabolism is kept at an acceptable level. So.. if I eat healthy .. why do I have such trouble losing weight? Even if I go out to eat for one evening - and I try to eat small portions and remember to eat vegetables and lean meats.. I am sure to have gained weight the next day. What could be wrong with me? I m desperate as my husband and I are trying for a baby, but I need to lose the weight to have a healthy pregnancy. Help!