IMHO, BMI is a dated and useless measurement. There are too many exceptions to the BMI index. Anyone who is even moderately athletic usually shows up as obese. It also hides people who look skinny, but may have lots of internal fat (the worse kind to have).
Die BMI!

__________________
"Only those who will risk going too far can possibly find out how far one can go." -- T.S. Eliot
"We are what we repeatedly do. Excellence, therefore, is not an act, but a habit."-- Aristotle
"Losers make excuses, winners make it happen!"
http://www.thepensiveprogrammer.com/