You seem to describe using BMI in casual conversation or as a personal goal but there are other issues.
Doctors use BMI as a filter for medications, surgery and such. With increasingly tele-medicine, I only get to fill my height/weight in a box and not treat a doctor to the gun show.
I don't know what other uses it has - insurance maybe, medical fitness standards for jobs etc.
Other criticism is about not capturing the variation between different ethnicities or builds so applying a numerical limit can be quite prejudicial.
On the otherhand, in some cases, weight is weight. There are some things where body-mass, muscle or fat, increases the relevant risk.
Doctors use BMI as a filter for medications, surgery and such. With increasingly tele-medicine, I only get to fill my height/weight in a box and not treat a doctor to the gun show.
I don't know what other uses it has - insurance maybe, medical fitness standards for jobs etc.
Other criticism is about not capturing the variation between different ethnicities or builds so applying a numerical limit can be quite prejudicial.
On the otherhand, in some cases, weight is weight. There are some things where body-mass, muscle or fat, increases the relevant risk.