I've got my own story about BMI. My endocrinologist recommended me to a surgeon in Charleston, SC for a gastric bypass surgery. My BMI is high, way too high supposedly. The surgeon used this special scale to measure my fat content with a low power electric current. I do NOT have near enough fat content for a gastric bypass and the surgeon recommended a workout regimen to lose the flab around my mid section.
As said before, BMI is only used to raise insurance rates.