Sure BMI can be more or less accurate depending on the person, but for those few who have actually rendered it inapplicable to them it's going to be blatantly obvious. No one will confuse them with being obese.
But he is an athlete with almost no fat (he is not aiming at muscles so he does not have a diet that minimizes fat, he is looking for sheer power and explosivity (gym, martial arts)). He is very built up (muscular) though.
So I wonder how the BMI can give any kind of reasonable indication when the fat level is not taken into account.
Without any consideration for fat BMI doe snot make much sense I guess.
I wouldn’t have been obese before, but I technically am now (with reduced bodyfat %).
Fat is not the only way to be heavy, body builders have very high BMI value yet have very different risk profiles.
Also, I'm still confused. My previous understanding was that bodybuilders are classified as obese without having excess body fat because they fit into that ratio because the ratio doesn't account for exceptions. Not that obesity actually incorporates more than just a ratio.
The point about body builders is that BMI as a metric assumes a fixed muscular profile, so doing (an healthy amount of) muscle training can wildly affect your BMI independently of your fatness.
If is still likely a good measure at a population level as very few people that have BMI > 30 are also fit. But you need to contextualize it to your own case.