I see a lot of posts in which people talk about their BMI. Why do people still use it? No one takes it seriously. Think about this: if a muscular football player and his sedentary, alcoholic grandmother were both the same height, they would have the same BMI! It tells us nothing of value.
I have lost about 50 KG and I have about 10 more to lose. The BMI tells me to lose another 40. That would put me in the hospital. I use weightzone.com because it gave me much better advice than the BMI. It tells me to lose between 9 KG and 14KG, which makes sense.