When my wife began bbb-diet, she lost dodyfat quite soon. Her body weight drop to same kilos she had as 18 yrs old, not bad for 33 yrs two childs mother. Losing weight was just "side-effect", not the goal. And at that time, she didn't exercise, the body fat just lost with diet. Just like my weight too.
We never calculate calories - I dont know how much calories we eat, but we care what things to eat. What we eat lot is vegetables (salads a lot) and fruits too. Not saturated fat, but olive oil lots. Fast carbohydrates are bad, cause you'll get more insuline --> some call it "keep-fat hormone". My wife's weight is quite ideal now, hasn't changed for two years.
BBB-diet has been so good, symptoms vanished and she is almost (once a month some) symptom free.
My wife last summer, after bbb-diet (I sound like tv-shop commercial