My son in law is over his “BMI” number, there might be a pound of fat on him, otherwise, pure muscle. “BMI” is used for setting health insurance rates, a government made up statistic.
Yeah its just too crude a measurement. I think the shorter you are and the larger weight you have, it is more likely the person is fat/obese, but for making any conclusive determination of health, nope. You need more. Even a photo would give the context to show athlete versus lots of body fat.
Its also at this point unnecessary if you want to use a couple numbers to generalize a persons health. I mean in 2023 for example, the average American woman is 5’4” and weighs 161 pounds, meaning the average American woman is overweight, so they may as well just by default start there for all women.