I dont want to devolve this conversation too far off its intended path but the bmi is a joke and a false guide. Consider, this man is morbidly obese, at least according to the bmi
The bmi is a simple minded chart that assumes everyone is built the same. Its long been discredited as anything other than a relic of a bygone era of cookie cutter doctoring.
A simple body fat measurement using a cheap electrical resistance formula is far more accurate or properly done a measurment with caliper and tape measure is awesome as well.
The man above, while obesse by the bmi, is actually less than 2% body fat and obviously very fit.