this post was submitted on 14 Jul 2025
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Maybe because BMI was never intended to be an indicator of health and is just a simple and dirty math formula invented by a Belgian astronomer 200 years ago?
https://www.urmc.rochester.edu/news/publications/health-matters/is-bmi-accurate
https://www.abc.net.au/news/2022-01-02/the-problem-with-the-body-mass-index-bmi/100728416
BMI is just weight and height, a pound of muscle, a pound of fat, a pound of bone...
Doesn't matter, a pound is a pound.
I failed BMI everytime I got measured in the military, they had to "rope and choke" which is a more time consuming method where waist/neck measurements were used. If I had still failed that, I'd have been given a buoyancy test as well for an even more accurate tests.
But it's hard to call someone obese after you just measured the circumference of their abs...
When used as an average of a population BMI isbetter but it was made based on what weights were considered healthy for a white man 200 years ago, way before protein and weight training. And when the average person was like 5'6.
Lots of clearly healthy white men are labeled obese because of that. And no one else was even involved in coming up with the system, so they've always been getting wrong results.
It's fucking insane we're still using this ancient flawed method when we have so many better ways. Especially since the largest determiner of height back then was access to enough calories when young. Pretty much everyone is getting that now. And reaching their max height which is where BMI has always been the most flawed.
Like, obesity is an undeniable problem. But BMI is the least scientific metric we could be using short of some bullshit like astrology signs. The obesity epidemic too serious to fuck around like this
BMI does work very well in diagnostics and statistical models, which is useful and trends to work better than separating the in inputs.
But I do agree it's not some magic be all measure.
It does not ...
https://www.scientificamerican.com/article/bmi-sidelined-in-new-obesity-definition-that-favors-health-evaluation/
It barely worked when it was created and doesn't really mean shit now.
It's gives loads of people a false sense of security and then they latch onto it and just keep insisting it's fine even in the face of multiple sources that show the scientific community thinks its shit.
I guess if people needed an example of that, your comment did serve a purpose.
Well first off that paper is from 2025, but data collection for the OP study is as far back as 2009.
second this is the first line of the paper you indirectly linked:
This study is not information at the individual level.
And here is a quote from later on in the abstract:
E: OP's study actually cites the new obesity definition in it's methods to justify it's use of BMI:
citation 14 is that study referenced in Scientific American!
So you also agree that studies point that BMI doesn't work very well in diagnostics? Because you're replying the statement with a boldened sentence agreeing with gp.
Or perhaps was the point that it's not true that "it doesn't really mean shit now" since the BMI still has some usefulness at the population level?
My point is that the op article and underlying paper is valid and valuable.
That's fair, though I also think it's fair to criticize the use of BMI and acknowledge all of its flaws. Perhaps mr givesofmefucks is just stating this position but with harsher wording.