7 ms·
They interviewed 310 ppl, calculated their BMI, then found out around half skip breakfast. That half had BMI a little higher than the rest. No discussion of wh
by howeyc 3y ago
They interviewed 310 ppl, calculated their BMI, then found out around half skip breakfast. That half had BMI a little higher than the rest.
No discussion of what they eat.
What a waste of time for everyone involved.
- mechhacker 3y agoAnd BMI says nothing of body fat percentage Can have higher BMI and lower bodyfat I'm not convinced BMI is a useful metric
- LordHeini 3y agoIt is for studies because, the average person with a high BMI has higher body fat on average. That might not be the case individually but with multiple people the few outliers don't matter.
- wombat-man 3y agoyeah... but the likelihood that you have a high BMI because you're just so jacked is low. It's not perfect, but it's a good metric.
- jncfhnb 3y agoIt’s really not a good metric. It’s incredibly noisy. “Are you fat” isn’t something that needs a noisy metric. And it makes analyses messy when bmi is used as a measure of fatness.
- wombat-man 3y agoAre you maybe hoping for a metric of general healthiness? Measuring body fat accurately on your own is tough. Most people know their height and can find a scale to use so you can get a rough idea of what bucket you're in. It's good for most people. If you're working out and pretty athletic idk why you'd stress about your bmi being a little high.
- scarby2 3y agosadly it's often misused. When there are things like BMI qualifications on medical interventions or where jobs have physical requirements. I knew a guy who really wanted to join the fire service but couldn't meet the BMI requirements as he was in the 'obese' BMI bucket, In this case he was just very broad and very muscular (built like the colloquial brick shithouse). By their requirements jonah lomu would not have been able to join because he was 'obese'
- paulpauper 3y agoplease delete your comment for going against bmi = health/fitness orthodoxy
- wombat-man 3y agoThat's crazy. A lot of the firefighters I see are uh, fairly big people. The test should be the physical exam.
- jncfhnb 3y ago> If you're working out and pretty athletic idk why you'd stress about your bmi being a little high. If you’re not working out and fat, BMI is still not a good descriptor of “how fat” or “how consequentially fat”. And yet you’ll still get scientists mapping out correlations and then it’s a shitty analysis because it does not show what the study assumes.
- 0_____0 3y agoI'm firmly in the 'overweight' category based on BMI, at 15% bodyfat, and I wouldn't classify myself as jacked. I have a bit more lean muscle than most from cycling but definitely not a 'gym body'.
- wombat-man 3y agoYeah, I'm 'overweight'. I run a lot and generally in pretty good shape. But I could absolutely lose 10-20 lbs of fat. Just because you're a little overweight doesn't mean you're unhealthy.
- Kirby64 3y agoIf you could lose 10-20 lbs of fat (and don't just mean, you have 10-20 lbs of fat left), then tautologically it would be healthier if you did lose the weight. The degree to which it makes you healthier is debatable, but that extra weight isn't making you more healthy (outside of people that are very underweight).
- wombat-man 3y agoSure, it's not an emergency but I try to eat better.
- paulpauper 3y agoyeah pretty much. a lot of guys who do even a little physical labor for a living or hobby are easily in the overweight category despite being strong and not that fat at least going by visual appearance . such as guys in construction, landscaping, or moving. a lot of people who are borderline obese do not even look that fat especially clothed. the stereotypical 'fat guy' with the overhanging or balloon stomach is more like a BMI of 40.
- barrell 3y agoMost people you see at a gym will probably be classified as 'overweight'. The fact of the matter is muscle is counted against you in BMI, and it takes very little to cross into the 'overweight' threshold. I would have to cut down to around 12% or lower body fat to be considered 'healthy', and I'm far from jacked. 1. Being sub 12% body fat (the highest BMI that would be considered healthy) is arguably unhealthy in and of it's own 2. Being on the low end of healthy would be, if my math serves me, -2.5% body fat 3. BMI does not distinguish between unhealthy / overweight, and fit / healthy (which should be the primary goal of such a metric?) 4. BMI aligns the best outcomes with those that will minimize muscle mass It's not that BMI does not have it's place, but let's call a spade a spade.
- mcculley 3y agoMost people don’t go to a gym.
- wombat-man 3y ago>Being sub 12% body fat (the highest BMI that would be considered healthy) is arguably unhealthy in and of it's own 12% body fat isn't a BMI, what are you trying to say? BMI is not supposed to bucket you into healthy or unhealthy. It is a ratio of your weight to height. You're right that there are a lot of people who are overweight but are perfectly healthy. I think your problem is that you're viewing BMI as some kind of blanket good or bad health number. It is what it is, and it's just one aspect of your physical health, which you probably shouldn't be trying to capture in a single number anyway. Go get a physical exam from a doctor if you want something comprehensive. If you just want a general height/weight ratio, BMI is pretty good for most people.
- alvah 3y ago>12% body fat isn't a BMI, what are you trying to say? it seems likely parent is talking about his* required body fat to be considered in the "healthy" BMI range (under 25 for males).
- tekla 3y ago99.99% of people BMI works just fine. As it turns out, most people in the western world are fat. The musclebound people literally do not care about BMI because its irrelevant to them. Almost everyone else, should probably start eating less.
- paulsutter 3y agoAlthough this has little bearing on the study, BMI works best for people of average height. Tall thin people have a high BMI, and unthin short people have a low BMI. Math reason: the square term for height is incorrect, people are three dimensional and a cube would be more appropriate (the formula is (lbweight/(inchheight^2 * 703))). Check the BMI of tall and short people that you know in this chart: https://www.cancer.org/cancer/risk-prevention/diet-physical-activity/body-weight-and-cancer-risk/adult-bmi.html https://www.cancer.org/cancer/risk-prevention/diet-physical-...
- auxfil 3y ago[dead]
- woeirua 3y agoPretty much only true if you are a body builder or someone else with an unusual amount of muscle mass relative to your height. For the vast majority of people though BMI is fine.
- brmgb 3y agoThere is little point of doing a study based on BMI when what you want is body fat. BMI is imperfect. It’s fine when you want to give people a quick metric for them to assess their fitness by themselves. People who are extremely fit with a high BMI already know they are extremely fit after all. It’s not fine when you want to analyse the effect of different life styles.
- dagurp 3y agoVery tall and very short people can also have BMI's that don't make sense.
- gizmo 3y agoWhy do people keep making this argument? It's a terrible argument. BMI and body fat are extremely strongly correlated. People with a very high BMI are all obese or morbidly obese. And people with a very low BMI are almost all underweight. BMI is a very simple, easy to calculate and useful metric. It works across countries and across time. BMI is just one metric. It doesn't tell you everything and knowing only the BMI of an individual isn't proof of anything. But average BMI is higher in Texas than Vietnam despite Texas having way more more bodybuilders. People in Texas have higher BMI because people in Texas are fatter. That's the truth. BMI denialism confounds me.
- abtinf 3y ago> People with a very high BMI are all obese or morbidly obese. That is tautological - obesity is defined in terms of BMI. BMI over 30 is obese. Arnold Schwarzenegger is 6'2" and weighed 235lbs at contest (30.2 BMI) and 260lbs in the off season (33.4 BMI). So much for your "all" claim.
- heyoni 3y agoArnie is also called an outlier. You don’t dismiss BMI just because. A doctor will factor that in before declaring a patient unhealthy. Otherwise, it works for most people and might be appropriate in large studies.
- piker 3y agoThe model disregards ridiculous outliers like world class bodybuilders in order to be simple and useful for the other 99.999% of society.
- claytongulick 3y agoAccording to BMI I spent years "obese" and am now "overweight" bordering on obese. I'm about 16-18% body fat. I'm definitely muscular, but hardly in the .0001%. If I'm wearing a shirt, you can't really tell that I lift. Hardly world class.
- FireBeyond 3y agoOn one hand, I like the publishing policy of NIH, because more dissemination of information is a good thing. But on the other, so many people gloss over or are just blatantly unaware that NIH specifically doesn't endorse anything about anything published there, that they're just a clearing house. And then people either infer authority from the domain, or they use that to consciously or subconsciously push their belief.
- lamontcg 3y agoIt is the National Library of Medicine, which is a database maintained by NIH. The journal this article is from is from is Cureus: https://www.cureus.com/ https://www.cureus.com/ Their tagline seems to be "publishing beyond open access" and to my eye at least looks like a 3rd tier journal. But NIH really has nothing to do with it, they're just a catalog. Libraries have tons of bullshit in them. You are supposed to be the filter.
- brudgers 3y agoThe authors correlated late night eating and HbA1c. That's more relevant to people with Type 2 diabetes than the general population. The authors found no correlation between skipping breakfast and HbA1c. That's also more relevant to people with Type 2 diabetes than the general population. Managing type 2 diabetes can occupy a non-trivial amount of mental space. Though probably not as much as managing type one diabetes. Not everyone is in everyone intended audience.