One problem with the BMI is that it is based on the square of the height rather than the third power. Pick the average height for a person and the "proper" weight and say that is some ideal BMI. Someone who is 10% taller than that average height would be 10% wider side to side and 10% thicker front to back to keep the same proportions. He would be 33% bigger overall, thus if his density is the same would be 33% heavier than the ideal average height person. However to keep the same BMI he's only allowed to be 21% heavier. To keep the same BMI, taller people have to start looking like bean poles.
To keep the same BMI, taller people have to start looking like bean polesTell me about it, for my height, I should weigh what I did in Jr. High (before I stopped growing). Granted, I could drop a few pounds, but I ain't getting back to what I weighed at 13 or 14.
Buddy of mine is a cycling fanatic. He rides, literally 100+ miles weekly, and the only fat on him is whatever he ate for lunch.
He's also got a stocky build. At his physical, his doc took one look at his BMI and told him to drop 20 pounds. "From Where?" my friend said.
Then he got a new doctor.