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How useful is the body mass index (BMI)?
www.health.harvard.edu ^ | Posted March 30, 2016, 9:30 am , Updated June 22, 2020, 12:00 am | Robert H. Shmerling, MD

Posted on 09/17/2020 8:59:38 AM PDT by Red Badger

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I'm not fat, I'm short for my weight....................
1 posted on 09/17/2020 8:59:38 AM PDT by Red Badger
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To: Red Badger

My rule of thumb is that anyone who lifts weights is “obese”. You don’t have to look like Schwarzenegger. But muscle is heavier than fat and if you bulk up even slightly, you will weigh more than they want you to weigh. Thanks for exercising: You are now obese.


2 posted on 09/17/2020 9:02:37 AM PDT by ClearCase_guy (If White Privilege is real, why did Elizabeth Warren lie about being an Indian?)
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To: Red Badger
One thing I've never understood about BMI is that it is related to the square of the height. If you take the "ideal" human height and weight and increase the height by 10%, I would expect width and thickness to increase by 10% also for a total weight increase of 33%. But the BMI only allows 21%. That means tall people have to be bean poles to hit the desired weight.
3 posted on 09/17/2020 9:05:15 AM PDT by KarlInOhio (In 2016 Obama ended America's 220 year tradition of peaceful transfer of power after an election.)
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To: Red Badger

There are a lot of exceptions to the BMI so I wouldn’t put too much stock in it. It works for some and not others.


4 posted on 09/17/2020 9:06:06 AM PDT by BEJ
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To: KarlInOhio

I’m 5’ 9” and 185 pounds soaking wet and it says I’m overweight..........


5 posted on 09/17/2020 9:06:38 AM PDT by Red Badger (Sine Q-Anon.....................very............)
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To: Red Badger
According to the WHO, nearly 3 million people dye yearly worldwide due to being overweight or obese.

Changing your hair color doesn't really distracted people's attention from a protruding gut.
6 posted on 09/17/2020 9:06:38 AM PDT by Dr. Sivana (There is no salvation in politics)
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To: Red Badger

I’m 5’ 9” and 185 pounds soaking wet and it says I’m overweight..........


Dry off and you’ll be fine


7 posted on 09/17/2020 9:08:02 AM PDT by PIF (They came for me and mine ... now its your turn)
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To: Red Badger

Me too. And I am in shape. Round is a shape, right?


8 posted on 09/17/2020 9:08:29 AM PDT by b4its2late (A Liberal is a person who will give away everything he doesn't own.)
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To: Red Badger

In my youth I was very athletic and was a nationally ranked regional champion cyclist. When I was first hired by the fire department that I was employed by for 25 years my body fat and mass was measured hydrostatically (under water). It indicated that I was 3% fat which is considered very lean. Yet because I had a lot of muscle mass at the that time, my BMI indicated that I was a fatty.


9 posted on 09/17/2020 9:09:11 AM PDT by fireman15
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To: Red Badger

BMI is used because it’s really easy to calculate. If you are muscular, it is not particularly helpful. How many people honestly wonder if they are fat or muscular? Honestly.

If you lose muscle mass and gain fat, it improves your BMI. If you add muscle and lose fat, your BMI will get worse. Not a good metric in and of itself.

Body composition is more useful, but a lot more difficult to measure.


10 posted on 09/17/2020 9:09:25 AM PDT by cdcdawg (Biden has dementia.)
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To: ClearCase_guy

That’s exactly what has happened to me, I lift weights 2-3x per week, nothing crazy but am now in the best shape of my life. Thanks for confirming what I’ve suspected.


11 posted on 09/17/2020 9:10:41 AM PDT by Fair Paul
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To: ClearCase_guy

spot on


12 posted on 09/17/2020 9:11:19 AM PDT by ConservativeDude
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To: Red Badger

Utterly useless. It first came out during the era of phrenology when “science” in England had gotten really into proving that poor people just suck on the genetic level and there’s nothing that can be done. It’s crap science from the get go.


13 posted on 09/17/2020 9:12:04 AM PDT by discostu (Like a dog being shown a card trick)
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I am 6’1” and 198 pounds, wear 34” waist. The BMI considers me obese


14 posted on 09/17/2020 9:13:13 AM PDT by dsrtsage (Complexity is merely simplicity lacking imagination)
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To: Red Badger

The BMI is only useful if one knows his/her body type. There are three body types...


15 posted on 09/17/2020 9:14:32 AM PDT by cloudmountain
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To: ClearCase_guy

IIRC, Usain Bolt was borderline obese under BMI standards while he was competing and setting all those world records. Imagine how fast he could have gone if he wasn’t a fatso?


16 posted on 09/17/2020 9:14:47 AM PDT by CommerceComet (Joe Biden: Showing his leadership by cowering in the basement like a scared child.)
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To: Red Badger

Useful ... for what?

For determininig the risk of a life threatening medical issue or long term cronic condition in the next 10 years ... I would assert “marginally”

For determining next months actual weight .... “probably”


17 posted on 09/17/2020 9:16:40 AM PDT by taxcontrol (Stupid should hurt - Dad's wisdom)
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To: Red Badger

My college age son—a very tall and thin distance runner—has a BMI of 15. He had that same BMI when younger as well; he’s been tall and thin all his life, even though he always eats well. An idiot PA in college “reported” him to his team and accused him of having an eating disorder and required him to get a bone density test (of course his bones were fine), and his pediatrician had to write a note to his coach verifying his BMI was normal for him, and had always been 15 (or even lower).

BMI is not one size fits all. Some people are just thin—and especially so if a distance runner.


18 posted on 09/17/2020 9:19:59 AM PDT by olivia3boys
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To: Red Badger
I weigh 160 at 5 ft 8.5 in. If I gain 6 pounds I am overweight.

That is ridiculous.

According to the BMI standards, I could weigh 130 lbs and still be normal.

That's concentration camp thin. The only people who are that thin are ill.

19 posted on 09/17/2020 9:21:30 AM PDT by RoosterRedux
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To: dsrtsage

A better measure is your waist to height ratio. Measure your waist at your belly button. It should be less than 0.5.


20 posted on 09/17/2020 9:23:07 AM PDT by JohnnyP (Thinking is hard work (I stole that from Rush).)
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