For the last six months (after a surprise blockage then stent) I started exercising and changed the diet. I was not overweight so I went into the lifestyle changes with heart health in mind, not weight loss. That's why I'm slow to realize that despite the total diet change and exercising, I haven't lost one single pound in six months. I was 100% sedentary before the stent, now walk briskly almost 2 miles per day on the treadmill. I used to eat cheeseburgers, steaks, gobs of cream cheese and mayo, etc., now I eat chicken, fish. I weigh exactly the same as I did six months ago. How could this be?