Why the Calorie Is Broken (arstechnica.com) 108
New submitter ami.one writes: Cynthia Graber and Nicola Twilley explain how we are still using a century old method for measuring the calories in our food and the calories spent in different human activities. Essentially, there is a very big difference between burning stuff in a bomb calorie-meter and the extremely complex ways our body extracts energy from food. In fact, the exact process of digestion is yet to be understood sufficiently at a micro level, and years from being replicated to any close degree. Plus, the way our bodies spend calories for a given activity is hugely different from the way a car consumer gasoline and dependent on a number of parameters — some of which are not even known currently. Therefore, balancing calories in to Calories out is not so stupidly simple as it seems to the underweight layperson . Update: 01/28 22:09 GMT by T : Sorry for the duplicate post; it was a long night.
Why SlashDot is broken? (Score:5, Insightful)
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Timothy is broken, but that's hardly news.
Re: Why SlashDot is broken? (Score:3)
Timothy is a genius. When there's nothing in the queue he just reposts the worst article from yesterday, and it's good for ten kilopageviews from people complaining about it. Printing money.
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Fuck. You are right. I didn't even read the thread yesterday cause it seemed like it should be on one of those "10 things you didn't know about something that will kill you" pages. This time I came here cause it's a dupe - that's the only reason. Ugh.
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10,000 yrs later and all of a sudden society has this absurd calorie counting obsession.
We have to have calories. Otherwise the Food industry couldn't say that the chemical sludge they sell is just as good for you as the stuff a farmer produces.
"See, they both have the same number of calories. Thus they are both equally good for you." - Food Inc.
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Well, I for one was glad to see that after all these corporate restructurings slashdot is back at its old level :)
But it is funny how they can post a dupe with exactly the same name, while the original article is even in the "most discussed" list. That's a level of incompetence for which you normally need to hire special staff to achieve :)
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This repost is dongs (Score:2)
Actually, no. This summary is, I think, better than the one posted yesterday for this identical topic. However, the answer to "I'm not quite happy with this summary" is to do it right the first time and fix it before posting it. Not to repost it the next day with different wording.
This isn't an update of breaking news, like yesterday we discovered the calorie was broken (ZOMG NOES!!1), and today President Obama held an emergency press conference to calm panic in the global markets about
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I converted the oil barrel unit and Big Mac volume to cubic meters and divided. I think 178 was the round number, and at 563 calories per, that comes out to 100,214 calories. +1 Internet to anyone who actually determines this number experimentally.
YOU FIRED (Score:1)
http://science.slashdot.org/story/16/01/27/0443210/why-the-calorie-is-broken
http://science.slashdot.org/story/16/01/28/1446244/why-the-calorie-is-broken
Pack your shit.
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Come on, it's a new day!
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And the sun is high!
How about "Why is Slashdot broken?" for dupes (Score:5, Informative)
Then again, dupes of stupid stories have been with Slashdot since the beginning. It kind of makes you wonder what (if anything) the so-called "editors" of this site do other than take kickbacks from the likes of Hassleton and that d-bag over at Forbes.
Then again, there's an important social policy angle to the Slashdot editing "quality": It's a powerful argument that they should be paid less than minimum wage.
It's hard to stop a 2 x 4 (Score:1)
"Therefore, balancing calories in to Calories out is not so stupidly simple as it seems to the underweight layperson "
Using my impressive array of mental superpowers, I predict that fatties will use this as an excuse for not exercising.
"Slashdot"
Using my impressive powers again, I predict hilarious fat jokes will be forthcoming in this very thread.
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The article has a point: the reason I am 400 lbs is because calories are counted wrong. I eat 10,000 calories a day. Due to the calorie being inaccurate I probably actually eat 13,400 calories or more. No wonder I am fat. I feel a lawsuit coming on!
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I eat closer to 10,000 Calories per week. I'm still fat, but not as fat as you.
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That's almost a starvation diet, you've got a seriously screwed thyroid if you still have weight issues.
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1. I'm shooting for 1800cal/day = 12,600 ~10,000 cal/week
2. I'm 240, and only starting to count calories, so I got a ways to go.
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If you balance "calories in to Calories out" you're going to have a huge problem as 1 Calorie == 1000 calories.
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Wasn't this here like yesterday?
Yes, Marty. But you see, when they posted the story about the DeLorean, it created a warp in the time-space continuum. Since Mr. Fusion hasn't been invented yet, we can't go back in the past, and until we do, these things are going to continue to happen, putting more and more strain on the time-space continuum until it all ENDS WITH A BANG!
Doctor (Doc) Emmit Brown
My Very Original Thoughts on the Subject (Score:2, Interesting)
Nutrition is a subject for which everybody should understand the basics. Unfortunately, this is hard. Not only is there a ton of conflicting research about how to properly fuel your body, there's a multi-billion-dollar industry with financial incentive to muddy the waters. Further, one of the most basic concepts for how we evaluate food — the calorie — is incredibly imprecise. "Wilbur Atwater, a Department of Agriculture scientist, began by measuring the calories contained in more than 4,000 foo
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Nutrition is a subject for which everybody should understand the basics. Unfortunately, this is hard. Not only is there a ton of conflicting research about how to properly fuel your body, there's a multi-billion-dollar industry with financial incentive to muddy the waters. Further, one of the most basic concepts for how we evaluate food — the calorie — is incredibly imprecise. "Wilbur Atwater, a Department of Agriculture scientist, began by measuring the calories contained in more than 4,000 foods. Then he fed those foods to volunteers and collected their faeces, which he incinerated in a bomb calorimeter. After subtracting the energy measured in the faeces from that in the food, he arrived at the Atwater values, numbers that represent the available energy in each gram of protein, carbohydrate and fat. These century-old figures remain the basis for today's standards."
In addition to the measuring system being outdated, the amount of calories taken from a meal can vary from person to person. Differences in metabolism and digestive efficiency add sizable error bars. Then there are issues with serving sizes and preparation methods. Research is now underway to find a better measure of food intake than the calorie. One possibility for the future is mapping your internal chemistry and having it analyzed with a massive database to see what foods work best for you. Another may involve tweaking your gut microbiome to change how you extract energy from certain foods.
Oh and my captcha is pinhead which obviously refers to the editors.
What I'm curious about is how did he determine that said fecal matter was from the specific food he set out test? It's not like you can fully predict when any one persons (or test subject) will produce fecal matter based on the input foods.
Funny you mention this... (Score:1)
... I read an article about that very topic not so long ago
http://science.slashdot.org/story/16/01/27/0443210/why-the-calorie-is-broken
Repost? (Score:1)
Why Slashdot is Broken (EOM) (Score:3)
That is it. Dupe!
Timothy, do you even read this site? (Score:5, Interesting)
This story was on the front-page yesterday [slashdot.org], do you guys not even TRY to keep track of this shit?
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This story was on the front-page yesterday [slashdot.org], do you guys not even TRY to keep track of this shit?
I was thinking maybe we should get pornhub to at least run the /. headlines on their front page - maybe then they would be noticed by the editors here.
Re:Timothy, do you even read this site? (Score:5, Insightful)
This story was on the front-page yesterday, do you guys not even TRY to keep track of this shit?
No, they don't.
Here's a typical working day of slashdot "editors":
Browsing the submissions: 3 hours.
Clicking on links provided with the submissions: 2 hours.
Trying to find the most misleading headlines for a story: 2 hours
Finding the most misleading quote in one of the related articles: 3 hours
Thinking of a clever remark to add to the quotes and fail: 5 hours
Hey, and even slashdot editors need to eat, drink and sleep, so there's no time to check what was posted yesterday.
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I for one welcome the return of regular dupes. I have fond memories of the time when there were typically two or three a day, back in the Taco era. The era of Slashdot Radio and Scientology attacks, when big sites were regularly Slashdotted because CDNs hadn't been invented.
Timothy is just feeling nostalgic. Netcraft confirms it.
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This story was on the front-page yesterday [slashdot.org], do you guys not even TRY to keep track of this shit?
Its also at the very top of the mobile site which keeps the story with the most number of comments at the top of the page.
It's literally the top of the front page right now for many devices.
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Why do I always get the mobile site when I have asked for the desktop site on Android? I wish they would fix that.
I think you mean kilocalories (Score:5, Insightful)
If you're going to complain about misunderstandings among laypeople, let's start with the proper name for the unit used pretty much everywhere: you're talking about kilocalories when you talk to a layperson in the US about the "calorie".
Second, even if in a typical case we could perfectly balance energy intake to activities, it's been shown that many bodies are atypical. We are not feeding spherical cows of uniform density in a vacuum. These are people with more or less muscle mass, different things going on in their endocrine systems, different overall body mass, different drug intakes, different vitamin and protein levels and sources, and different genetics.
The real-world test for a dietary plan is whether it helps you maintain your health and desired weight. There is enough research to recommend some alternatives as definitely better than others, but there's been no definitive perfect diet. Ultimately the perfect diet is one that allows you to be both healthy and satisfied, and that it can't do on its own. The dietary plan can contribute, but it also takes other lifestyle factors.
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you're talking about kilocalories when you talk to a layperson in the US about the "calorie".
No, no, no. 1 kilocalorie == 1 Calorie, not one calorie. You mean you can't hear the all important distinction between the "calorie" and the "Calorie", runners up in the "stupidest tradition unit" prize with the ton and gallon.
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Maybe not in outer space, but in America?
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I didn't use the word "underweight", but just because they are a minority doesn't mean you get to discount them. Check your fat privilege. ;-)
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We are not feeding spherical cows of uniform density in a vacuum.
You must be new here; you never, ever mention the word 'cows'!
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You are all spherical cows of uniform density in a vacuum ... moo you damned spherical cows of uniform density in a vacuum. MOO!!
Hey, you're right!!
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Sounds like a bunch of bull to me. Moo, bull, moo. ;-)
Actually, I know a quite a few people who for a fact have the same issue. That's one of the biggest reasons for the success of email providers independent of ISPs, schools, and employers early on I think. The account portability is a big deal.
To bring this somewhat closer to topic, it takes a lot of energy to update all those sites when your non-portable email address changes. It's more calorie-efficient to have something like a Gmail or Yahoo mail acco
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The unit of energy in the mtric system is the Joule
with the typical metric multipliers = 1 KWhr is 3.6 MegaJoules
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"We need both imperial and metric calories."
You nailed it. That's why Americans are 2.54 times fatter than the rest of the world.
Jeeze, guys (Score:2)
Do you even read you own site from time to time?
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No. Do you?
I'm starting to consider if i should even bother to be honest.
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It's déjà vu all over again (Score:2)
Underweight layperson (Score:3)
Therefore, balancing calories in to Calories out is not so stupidly simple as it seems to the underweight layperson.
What about the previously slightly obese person and currently healthy weight person (by BMI measurement)? Because that's me. And even during the obese period, I never had any delusions about it not being as simple as balancing calories in and out. It was a matter of changing my mindset so that I was actually serious about the work involved.
Are they right that the number of calories you take in isn't exact? Of course. It's even harder to measure the number of calories out. Does this matter? Not in the least. They're good enough rough approximations. If you're trying to match your calories in to your calories out to a net -5 calories, you're doing it wrong. Aim for at least -500. Even if you're wrong by, say, 400 calories, you're still negative -100 and in the long term will lose weight. Sometimes you'll be wrong in the other direction and will be negative even more that 500 calories for that day. Chances are, in fact, that the long-term average will approximate what you're aiming for.
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The point is that the time and effort needed to try and improve the precision of these data is probably not worth it. Lots of empirical evidence seems to agree, because counting calories generally works.
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Aiming for -500 is good, -750 is better.
Proof http://suppversity.blogspot.co... [blogspot.com]
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So, what you're saying is to do 100 pushups 100 situps and 100 squats followed by a 10km run every single day?
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Ride your bike at a decent pace (18+ mph, 29 kph) for an hour. Eat 2000-2500 calories per day. Weight problem solved. I'm living proof.
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anecdote, meet data. Yeah, I know, you two having nothing in common.
Re: Underweight layperson (Score:2)
And dozens of my fellow local cyclists are all anecdote. And the millions more worldwide. Yep, all anecdote.
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and when you are too short of calories your body adjusts by lowering metabolism. For how long? That depends on:
1) how great of a shortfall
2) how often there are shortfalls
3) variables with your body that have not been identified
In other words, it *does* matter if you have too little, and it isn't as simple as "averaging out in the long term".
And, speaking in generalizations, when your metabolism is lowered by shortfalls and then you get more what normally happens is the body will stockpile fat like crazy be
Nothing is broken (Score:2)
lots of dudes pissing and moaning because... (Score:1)
'ami.one' needs to look at recent stories posted (Score:2)
Know what I hate about stories like this one? It gives people who desperately need to accept reality and lose weight another excuse to say 'Oh well, I guess it's hopeless!' and just keep eating whatever they want, stay obese, and never even try. It's not even true; our understanding of food, calories, and digestion isn't so utterly 'broken' as apparently a vocal minority might have you believe, otherwise how could anyone ever control their weight, or not be malnourished, etc. This
EDITORS need to look at recent stories posted (Score:1)
Stories are submitted, read: "please look at this!", or "wouldn't this be a nice subject to discuss?"
Of course it's always possible there are multiple submitters, or submitters (part of the public, after all) that missed a previous story. THAT IS OKAY.
But with those submissions in hand, it would be the editor's job to check for previously posted stories, non-working links, spelling errors (well... at least obvious ones :-), etc. In this case, that would have been Timothy's job. Exce
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..it would be the editor's job to check for previously posted stories..
Fair enough. We didn't need two of essentially the same story in the same week, and you're right, the /. staff should have caught that and not posted it on the front page.
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unit argument (Score:2)
I thought this was going to be a scientific article about how the unit called a calorie is screwed up. I was hoping for a treatise on thermodynamics and standards and some new measurement technology. So sad to find out it was just about losing weight. Is it too much to expect a news site for nerds to geek out on units of measurement, without fretting about real-world applications?
Besides, if you're looking at real-world applications, how about looking at a nerdy version of it? Weight loss is just a mass bal [ucsd.edu]
Dupes are Just Like Starting Over (Score:1)
Our life together is so precious together,
We have grown - we have grown,
Although our love is still special,
Let's take our chance and fly away somewhere alone,
It's been so long since we took the time,
No-one's to blame,
I know time flies so quickly,
But when I see you darling,
It's like we both are falling in love again,
It'll be just like starting over - starting over,
Everyday we used to make it love,
Why can't we be making love nice and easy,
It's time to spread our wing's and fly,
Don't let another day go by my l
The science is pretty basic (Score:2)
The science is well established and the numbers are well known. Outside very narrow set of outliers it is well understood how many calories "go in" from which foods and how many "go out" through what activities.
As someone who was able to lose 65lbs of extra weight (from 200 to 135 lbs) using just those calorie counts, I can tell you that not only did the counts make sense in general, but they did correspond quite closely to the predicted weight loss per every unit of time (down to a single week).
The "calori
Now dups are making front page of /. (Score:2)
Is this even English? (Score:2)
What does this even mean?!
Second law of themodynamics (Score:2)
A "a calorie is just a calorie" violates THE SECOND law of thermodynamics. Entropy in the body is actually not as complex as OP makes it out, but it is a huge factor that makes all the difference in the world