We knew all this but it’s good to see NPR spreading the, ah, good word as it were. *grin*
Americans keep putting on the pounds — at least according to a report released this week from the Trust for America’s Health. The study found that nearly two-thirds of states now have adult obesity rates above 25 percent.
But you may want to take those findings — and your next meal — with a grain of salt, because they’re based on a calculation called the body mass index, or BMI.
Weekend Edition math guy Keith Devlin graded the body mass index and tells host Scott Simon that it fails on 10 grounds.
This entry was posted in
Health. Bookmark the
permalink. Follow any comments here with the
RSS feed for this post.
or leave a trackback:
Trackback URL.
20 Comments
It’s nice to see someone questioning the BMI numbers in a place besides the FatOSphere. As usual, though, my challenge to those who unquestionably buy into the supposed health risks from a high BMI, is to tell me what I should do about it. Don’t give me the eat less/move more meme. Been there done that—for about the last 30 years. I’m still fat. Don’t give me anecdata either. Show me scientific proof that something shows long-term (>5 years) weight loss, with improved health outcomes, and minimal adverse affects, and then I might listen to you. Meanwhile, I’m waiting…..
By the way, the article refers to a study from the group “Trust for America’s Health.” I thought I’d find out who they are and what they promote, since so many of these groups promote things that aren’t as lovely as their names imply. They apparently are not a fringe group, as their supporters include the AMA, the ANA, the Robert Woods Johnson Foundation, etc. etc. From their web site (healthyamericans.org) I learned that TFAH is focused on our preparedness to respond to health emergencies, including bioterrorism, natural disasters, chronic diseases and emerging infectious diseases. Somehow they decided that the OBESITY EPIDEMIC (cue scary music) should be included in that list (maybe between bioterrorism and natural disasters? That’s right. We fat folk are as much of a threat to the nation’s health as anthrax and hurricanes.) They call for a “National Strategy to Combat Obesity” which would focus on ways that our Federal, State, and Local governments can help to curtail the (cue scary music again) OBESITY EPIDEMIC. One of the things they call for is “an official in each Cabinet-level agency…to focus on obesity-related policies.” Do they really mean each Cabinet-level agency? Does the Department of Homeland Security and Interior really need to worry about obesity? Geesh…..
Personally, I didn’t really like the article. It seemed like most of the points boiled down to “Oh, it doesn’t work if you’re TOO HEALTHY” with a kind of unstated “but it’s true when it comes to those fatties.”
While it’s very good to see this piece, I must take issue with this observation:-
Moreover, it ignores waist size, which is a clear indicator of obesity level.
…because all obese people are, regardless of sex and body-type barrel-shaped, y’know.
Of course, it still harps on how having no body fat EQUALS healthy and people who have a high BMI because they are actually fat are going to drop dead at any second.
I have huge bones in addition to being fat. Acceptable BMI is like a dream within a dream.
Here in japan the average BMI is around 19 for women and I don’t see the women around me falling dead from being “underweight”. BMI is a sham all the way around.
I was also disappointed that the article didn’t go further into the realm of FA…but at the same time, NPR is pretty mainstream and so I was heartened to think that the media is moving in a better direction on this issue. We still have a ways to go, but this is a great start.
(Note: I first typoed FA as FAT above, which was kind of awesome in its own way.
)
I started skipping meals when I was eight years old in an attempt to lose weight. At age 12 I adopted extremely disordered eating habits that would have been described as anorexia if I had actually lost any weight (which I did not). I was 175 lbs then at my full height of 5′3″–already obese according to BMI. There is no chance I would ever have an “acceptable” BMI.
It had to end by calling obesity “one of the leading causes of poor health and premature death”, even while ridiculing that BMI is a 200-year-old numerical hack. Just like every other article that says, “So don’t use this as an excuse to OMG get fat!” Don’t read the comments unless you have saved up some Sanity Watchers points.
Overall a good article but I have to agree with BuffPuff. The main problem, I think, is that people still haven’t given up on their need for fortune tellers. Here it is the 21st century and people still want someone to look at the lines on their palm (body shape) or toss & read the bones (BMI) to tell them what their fate is going to be.
Hello! People! These are GENERALIZATIONS. They don’t, can’t, and shouldn’t apply at the individual level. The article makes a point of specifying this, yet one glance at the comments, and you’ll still find people missing it by so much, you’d need mile markers just to figure out just how far off they are. Reading comprehention much?
The message is out and it’s getting louder but your still gonna need a dimond tipped drill bit to get through some of the thicker skulls roaming around out there.
As happy as I am to see BMI ridiculed in a relatively mainstream news source, I have to express disappointment. Once again, thin is assumed to be the only possible healthy form, while thin and muscular is considered all but a recipe for eternal life. Sure worked for Jim Fixx, didn’t it? (/sarcasm)
I’m glad this is starting to be discussed, but we have a long, long way to go before the point starts getting across.
I’m glad most of you agree that this article doesn’t do much for us. I said over on NAAFA’s myspace blog:
It’s like
America: “Oh my god I’m so fat, look at my BMI”
NPR: “Zomg, no you are SO not fat, America! You have big bones, don’t say that about yourself.”
Not. Helpful.
It’s a start, I guess.
The article addresses BMI as if it were just a measure of fatness… but BMI is rarely that benign (best word I could come up with) when used for any practical or medical purpose. Instead, it’s used as a proxy for a person’s health– a practice which hinges on two incorrect assumptions:
1. People with BMIs over a certain number are fat
2. Fat people are unhealthy
*America: “Oh my god I’m so fat, look at my BMI”
NPR: “Zomg, no you are SO not fat, America! You have big bones, don’t say that about yourself.”
Not. Helpful.*
Best. Comment. EVER!
I said this at Shakesville, may as well say it here, too: avoid the comments on that article unless you really wanna get your blood pressure up.
The NPR has done a lot of great stuff on the topic of Asperger’s Syndrome, which I have, in case you didn’t already know heh.
I also took a look at the comments. Apperantly some size bully, thinks if he capitalizes the word fat in his post, it will make the same tired BS about how it’s simply calories in and calories out have more importance. All it does is make him look like the angry moron he is.
Although I’m glad that NPR is talking about the bogus-ness of the BMI, it really misses the point, in my book.
Any way that you measure me, I am fat. Anyone can look at my actual weight and figure that out. But what BMI does is it lumps people. It allows for people to become categories. It takes the person out of the equation.
BMIs create an invisibility and this article basically says….look there are “real” (read: “healthy”) people here that are being overlooked.
It just makes me crazy (which is my theme for today).
Lovely! I actually went to a health and wellness seminar a few weeks ago and at the beginning they asked everyone what was the best or worst fitness, nutrition, health advice they had ever received. I said the best thing I ever learned was that the BMI is total crap. So freeing.
Reason number 832: if I got osteoporosis, the BMIsters would see it as an improvement in my health. I think I’ve figured out what the next diet fad will be! Calcium leachers! Time to invest. I’m going to be rich, I tell you, fat and filthy rich! MUAHAHAHAHA!
“‘Moreover, it ignores waist size, which is a clear indicator of obesity level.’
…because all obese people are, regardless of sex and body-type barrel-shaped, y’know.”
You don’t need to be barrel-shaped to have a big waist. According to the medical community, every woman’s waist should be smaller than 31.5 inches to reduce risk, and 35 to avoid death by TEH FATZ. I’m five ten with big bones. (I’m also fat; I mean big bones quite literally.) Even if you count my bulemic high school years, my waist has never been smaller than 32 inches. If the impact of that 32 inches on my health is the same as it would be on some tiny-boned, 4′10″ Japanese chick, I’ll eat my hat. No, really. I have an awesome wool hat with snowflakes on it, and I will eat it in Times Square for all to see if there’s no difference if effect. They have to prove causation first too though, or it would be meaningless.
jasmine, so true. And buffpuff, no kidding. I can see it now– tightlacing corsets are going to come back in style. After all, smaller waists are correlated to lower rates of heart disease, therefore wearing a corset reduces your risk of having a heart attack! Really, dieting advice is based on much the same principle.
I wasn’t overly fond of the article, but it would be nice if people understood that all the stuff spouted about the obesity epidemic COMES DIRECTLY FROM BMI. Which takes into account NOTHING MORE than height and weight. After I posted my weight and BMI stats on my blog, I had a bunch of people saying, “well, she’s CLEARLY not obese, but she IS fat– how can she claim she’s thin?!” Uh, no. That’s kind of the two-fold point. 1) I AM obese/nearly obese according to BMI, which is the indicator used when people talk about “the obese.” You live by the sword, you die by the sword. You can’t quote “obesity” statistics and not include me. And 2) I never said I was thin. Saying “I reject XYZ label as pseudoscience” does not mean “therefore I am the opposite of XYZ.” It pretty much means… I reject that specific label. It’s as if I said “I reject the word ‘pink’ as I feel it is problematic, perhaps it should be ‘light red,’ and should only apply in such and such a situation, etc.,” and someone said, “So you’re saying the accents on therotund.com are all blue?!? You’re delusional!!!”
*sigh*
One Trackback
[...] At The Atlantic Megan McArdle starts an epic battle (in blogging) with the obesity panic and what to do about it. It starts here. Old but found this link to an NPR story, Top 10 Reasons Why the BMI Is Bogus, at The Rotund. [...]