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Re:Everything You Know About Fitness is a Lie by ilovecomputers on Friday March 04, 2011 @05:40AM (#2287630)
Also, don't eat boxed foods or foods that went through multiple stages of processing. In Defense of Food by Michael Pollan spells it out very well, but I'll just give you my simple definition: Eating healthy is as close to eating dirt without actually eating dirt. Produce, grain, cheese, 1/2 pound to a pound of meat a week[1], and whatever else Marion Nestle recommends[1.5].

Just imagine what primitive man would eat. He would spend most of his days eating what grew from the ground and when they finally hunted down meat, they would eat their catch as a group[2]. That doesn't mean you have to do exactly that, but try to keep your eating habits in sync with what it was originally adapted to consume not what hyper stimulates made you believe it wanted to consume[3].

Now don't go about forcing yourself to eat stuff you don't enjoy. In the same manner jasonkester engages in something he enjoys that have the "side effect" of being healthy (I still think these activities are something we were adapted to engage in the first place), find foods you find delicious but also happen to be something that isn't processed. I can assure you that there is plenty of "healthy" or "natural" foods out there that you would enjoy[4].

[1]http://www.ted.com/talks/mark_bittman_on_what_s_wrong_with_w...

[1.5]http://www.scientificamerican.com/article.cfm?id=eating-made...

[2]http://video.google.com/videoplay?docid=3723678050599653349#

[3]http://www.youtube.com/watch?v=TzN-uIVkfjg

[4]http://smittenkitchen.com/

Re:Everything You Know About Fitness is a Lie by NickPollard on Friday March 04, 2011 @07:03AM (#2287791)
I'm not going to argue that what you describe isn't good, but 'nature intended us to' isn't a particularly solid argument.

You could argue that nature intended us to die from Malaria by the age of 30, I'm very glad that for most of the world that's no longer the case.

Re:Everything You Know About Fitness is a Lie by desigooner on Friday March 04, 2011 @08:02AM (#2287881)
That's precisely why the "nature intended us to" argument doesn't really work for me when I hear people trying to convince me to try the Paleo diet. Whatever the benefits might be (besides making the author of those books a good chunk of money), they can be garnered by other means. What I hate even more is when a few devotees of such diets go on a slant about vegetarianism/veganism etc. etc.
Re:Everything You Know About Fitness is a Lie by JoelMcCracken on Friday March 04, 2011 @10:33AM (#2288352)
I went from being a vegetarian to the paleo diet (or, actually, the "primal" variant). I thought about making this really long, but instead, realize that primal/paleo people use the primitive human as a model, a "common sense" starting base, and then apply liberal amounts of scientific knowledge to get a working solution.

It has changed my life. When I follow the diet, it has been pretty impossible not to lose weight. That's with eating as many eggs, as much butter, and as much natural, delicious, other whole foods as I can stuff myself with.

Re:Everything You Know About Fitness is a Lie by Cushman on Friday March 04, 2011 @01:13PM (#2289088)
Second this. I am as critical as anyone of the naturalistic fallacy, and don't generally subscribe to the idea that what worked for cavemen will work for me.

However, the metabolic science is there if you read it, and I can't argue with the profound effect switching to a diet based on meat, eggs and other sources of saturated fats has had on my body.

I eat as much as I want, whenever I want, I'm never really hungry any more, and I've been losing fat and gaining muscle without thinking about it at all. It's pretty incredible.

Re:Everything You Know About Fitness is a Lie by mortenjorck on Friday March 04, 2011 @01:39PM (#2289208)
A good friend of mine made the same transition (vegetarian to paleo) and says the same: it changed his life.
Re:Everything You Know About Fitness is a Lie by xiaoma on Friday March 04, 2011 @09:29AM (#2288078)
Not only that, but our "nature" has changed considerably since those times. Evolution has been far faster, likely 100 times faster the past several thousand years than it was before civilization. 15,000 years ago, nobody was lactose tolerant, nobody had blue eyes and who knows what else was different.
Re:Everything You Know About Fitness is a Lie by JoelMcCracken on Friday March 04, 2011 @10:28AM (#2288321)
That isn't evolution, it is a diversification of our genetics. There are lots of things that many humans are intolerant to which would have probably been a really big weakness in the past.

Humans are no longer subject to natural selection. There needs to be significant culling pressure for real evolution to happen.

Re:Everything You Know About Fitness is a Lie by xiaoma on Friday March 04, 2011 @10:45AM (#2288394)
It is evolution, and it speeds up with higher populations. As for natural selection, consider that only small changes in allele frequencies add up quickly through the generations. Also, sexual selection is very much a force.

http://www.scribd.com/doc/33322719/Cochran-Gregory-10-000-ye... http://www.nytimes.com/2007/12/11/science/11gene.html http://www.wired.com/wiredscience/2007/12/humans-evolving/

Re:Everything You Know About Fitness is a Lie by jshen on Friday March 04, 2011 @10:43AM (#2288386)
"Humans are no longer subject to natural selection."

What? Are you sure? Because we most certainly are subject to natural selection.

Re:Everything You Know About Fitness is a Lie by JoelMcCracken on Friday March 04, 2011 @11:01AM (#2288455)
Yes. But not to any significant degree that will cause a change as a species.
Re:Everything You Know About Fitness is a Lie by btilly on Friday March 04, 2011 @11:53AM (#2288690)
I'm sorry, but anyone who says this has failed to understand evolution.

Evolution is a slow process. But there is no reason to believe that it is going any slower today than it ever did in the past - we're just being selected for different things than in the past. (For instance carelessness about birth control.)

Re:Everything You Know About Fitness is a Lie by Liron on Friday March 04, 2011 @08:31PM (#2290527)
No, he's right. The most powerful force shaping the future is intelligence. Natural selection on biological genes is orders of magnitude slower.
Re:Everything You Know About Fitness is a Lie by btilly on Saturday March 05, 2011 @12:57AM (#2290926)
The fact that intelligence is shaping our future faster than evolution does not affect the fact that evolution is still proceeding at the current moment in our species.
Re:Everything You Know About Fitness is a Lie by torkins on Saturday March 05, 2011 @03:52AM (#2291116)
No, he's wrong. Natural selection doesn't speed up or slow down, it just is. Each passing generation there are pressures put on the spreading of human genes, and those pressures are the manifestation of natural selection. Whether those pressures are different now than before, or whether they shape "the future" is irrelevant to the biological impact of natural selection.
Re:Everything You Know About Fitness is a Lie by hackinthebochs on Saturday March 05, 2011 @01:11PM (#2291941)
Sure it does, in the sense that there are fewer selective pressures on us, and those pressures are weaker. Our intelligence is able to overcome many of the pressures our environment exerts on us.
Re:Everything You Know About Fitness is a Lie by jshen on Thursday March 10, 2011 @10:39AM (#2309450)
I'm highly skeptical that there are fewer selective pressures. One example, aren't industrial countries having fewer and fewer kids?
Re:Everything You Know About Fitness is a Lie by hackinthebochs on Thursday March 10, 2011 @01:23PM (#2310092)
Just to clarify, When I say "us" I mean the western world. True, industrial countries are having fewer kids, and thats an example of a new selective pressure. It's a result of a new environment we've created for ourselves. I'm sure there are many to go along with that. But the sheer number of (potential) selective pressures we've removed through technology doesn't compare: many diseases, muscle size, brain size, vitamin D synthesis (its put in everything now), body hair, skeletal structure, the list goes on. Our interaction with our environment is on such a fundamentally different level that there are many classes of environmental pressures that simply don't affect us anymore.

Think of it this way: we used to be directly reliant our the environment for survival, like animals are. But now, we process our environment to such an extent that small variations in it are overcome by our intellect. Those variations in the past would constantly be exerting selective pressure on us in many different directions. Those pressures are processed out now.

Re:Everything You Know About Fitness is a Lie by jshen on Friday March 04, 2011 @11:23AM (#2288544)
we most certainly change as a species. Something as simple as choosing who to reproduce with affects the distribution of genes that are passed on to the next generation.

A more obvious example of the sorts of changes we can still go through is sickle cell.

Re:Everything You Know About Fitness is a Lie by nollidge on Friday March 04, 2011 @02:16PM (#2289369)
Natural selection is just one component of evolution. Genetic drift and, especially, artificial selection are certainly in full swing.

And anyway, I completely disagree that we're no longer subject to natural selection. We're always subject to natural selection. We're not immune to everything.

Re:Everything You Know About Fitness is a Lie by nollidge on Friday March 04, 2011 @02:10PM (#2289343)
Actually, everybody was lactose intolerant 15,000 years ago: http://en.wikipedia.org/wiki/Lactose_intolerant#History_of_g...
Re:Everything You Know About Fitness is a Lie by AlecSchueler on Friday March 04, 2011 @03:38PM (#2289674)
"15,000 years ago, nobody was lactose tolerant"
Re:Everything You Know About Fitness is a Lie by nollidge on Tuesday March 08, 2011 @02:58PM (#2302359)
Ugh, sorry, yes. Totally misread that.
Re:Everything You Know About Fitness is a Lie by reason on Friday March 04, 2011 @08:31AM (#2287939)
Us not readily acquiring the malaria virus is not due to evolution of our genes; we just don't live in the areas where the vector thrives. If you and I were bit by an infected mosquito, there's a very good chance either of us would die in a relatively short period of time. Although, there are some in Africa who do have fewer chances of acquiring it due to them being heterozygotes for sickle cell anemia.

Anyway, I'm not discounting the underlying concept of your comment; I'm just saying that malaria wasn't a particularly apt comparison.

Re:Everything You Know About Fitness is a Lie by poppysan on Friday March 04, 2011 @09:41AM (#2288123)
I think the point is that we don't fight it "natually", we fight it with medicine and vaccines. We also have access to clean water which, if we did get malaria, would prevent us from dying from rapid dehydration(which in my understanding is the primary cause of death from malaria.) This is the argument against the caveman diets...
Re:Everything You Know About Fitness is a Lie by patio11 on Friday March 04, 2011 @10:53AM (#2288428)
The primary reason we don't die from malaria is none of the above: it is mosquito abatement via intentional habitat destruction and copious use of effective pesticides. Large portions of the US used to be malaria country: not a spe mof it is now, and if there was a malaria outbreak in a US suburb we would wring our hands about the consequences for about five minutes and then dump enough chemicals on that subdivision to save an African country.

Ditto Europe, by the way.

Re:Everything You Know About Fitness is a Lie by nerfhammer on Friday March 04, 2011 @12:04PM (#2288754)
I believe the strains of malaria that existed in North American and Europe were far weaker than the African varieties, though
Re:Everything You Know About Fitness is a Lie by rarrrrrr on Friday March 04, 2011 @12:01PM (#2288732)
Medicine is a fine way to treat things like infectious disease, but our western use of it is particularly useless (and often harmful) at treating long term "lifestyle diseases" -- stuff like diabetes, heart disease, and cancer. Prevention is far more effective, and diets that consist mostly of "food as grown" with minimal processing and alteration are good prevention.
Re:Everything You Know About Fitness is a Lie by kragen on Friday March 04, 2011 @11:32PM (#2290823)
> we just don't live in the areas where the vector thrives.

Actually, an awful lot of us do. I see those fucking Anopheles mosquitoes on a regular basis, especially if I venture a bit north from here.

> If you and I were bit by an infected mosquito, there's a very good chance either of us would die in a relatively short period of time.

Actually, out of the 225 million cases of malaria per year, there are only about 1 million deaths.

I'm not discounting the underlying concept of your comment; I haven't gotten malaria yet because of public-health measures like draining swamps, because of cypermethrin on the walls, because of DEET on my legs and head, because of sleeping under a mosquito net or in a room without entrances for mosquitoes, because of sleeping during the day, and because I have enough leisure time to swat the mosquitoes that do land on me.

Re:Everything You Know About Fitness is a Lie by dalore on Friday March 04, 2011 @09:59AM (#2288196)
I disagree with your statement about dying in a short period of time if you catch malaria. I grew up in a country with a high malaria rate (Papua New Guinea). I caught malaria several times and didn't die. Malaria is a curable disease, all though it is evolving against the current cures.
Re:Everything You Know About Fitness is a Lie by reason on Friday March 04, 2011 @10:46AM (#2288398)
It's definitely curable. My hypothetical was based on the assumption that treatment was not given to show that we actually have not evolved defenses against the virus.
Re:Everything You Know About Fitness is a Lie by duncanj on Friday March 04, 2011 @05:55PM (#2290174)
It's not a virus, it's a protozoan parasite, Plasmodium falciparum.
Re:Everything You Know About Fitness is a Lie by ilovecomputers on Friday March 04, 2011 @10:51AM (#2288416)
I'm not arguing what "nature intended us to" do (the human body is more adaptable than what the advocates of the Paleo diet take into consideration). I'm referring more to certain people with health problems who eat mainly fast food or food from the box and barely eat an apple a week. I know a few people who are like this and they end up stressing themselves by sticking to some draconian diet to get healthy.

I'm saying there's no need to stick to some strict diet, just eat a wide variety of foods instead of just one subset. The whole "think like a primitive man thing" is just a helpful starting point to point you towards what kinds of food to look for, but I'm not advocating some strict following. I had three In and Out dinners this past week since I'm too short on time to hunt down a pigeon or pluck mysterious fruits from trees all day.

Re:Everything You Know About Fitness is a Lie by btam on Friday March 04, 2011 @08:01AM (#2287880)
The difference here from malaria would be that our bodies evolved, adapting to the nutrients that we were getting. We're more efficient on them -- more capable of living 'natural' lives.

[Of course, whether a 'natural' life is desirable is debatable.]

Malaria, however, we attempted to evolve away from(sickle cell anemia).

Re:Everything You Know About Fitness is a Lie by richcollins on Friday March 04, 2011 @01:27PM (#2289151)
It's more that we're taking health risks by eating novel foods (things that weren't available as we evolved). There is a lot of evidence that insulin response is responsible for metabolic syndrome. There is also some evidence that the lectins in grains promote malabsorption of dietary nutrients.
Re:Everything You Know About Fitness is a Lie by sliverstorm on Friday March 04, 2011 @09:02PM (#2290596)
Only time I'm satisfied with the 'nature intended us to' argument is some combination of walking/running. The way a good, smooth runner's body flows when they hit a fast jog screams to me "my skeletal and muscular structure was built for this!" Otherwise, yeah, as best I can tell adaptability is our only real designed-in-feature.

We're not as fast as most animals out there, but I don't think that means we didn't run a lot in prehistory.

Re:Everything You Know About Fitness is a Lie by bane on Friday March 04, 2011 @11:58AM (#2288711)
Just imagine what primitive man would eat. He would spend most of his days eating what grew from the ground and when they finally hunted down meat, they would eat their catch as a group

Ugh, I hate this concept. Primitive man also died in their 20s and 30s. No thanks.

Re:Everything You Know About Fitness is a Lie by gigamonkey on Friday March 04, 2011 @12:38PM (#2288922)
I'm pretty sure this is false. As I understand it hunters and gatherers lived about as long as we do. It was only with the invention of agriculture and the kind of societies (and diseases) it enabled, that our average lifespan took a nosedive which we are pulling out of now, thanks to modern medicine.
Re:Everything You Know About Fitness is a Lie by bane on Friday March 04, 2011 @02:02PM (#2289314)
It's relatively easy to test though. You can look at life expectancy figures of hunter gathering cultures (which are a useful proxy for pre-agricultural cultures) that don't deal with modern issues, or didn't deal with them at some point that we have pretty good data on. For example the life expectancy in Papau new Guinea was flat lined at just over 30 until about 1940.

You can see similar trends in other non-agrarian societies.

http://www.gapminder.org/world/#$majorMode=chart$is;shi=t;ly...,

There are studies that go along with your POV

http://www.anth.ucsb.edu/faculty/gurven/papers/GurvenKaplan2...

but they are, to date, very much in the minority of research in the area.

Re:Everything You Know About Fitness is a Lie by ubercore on Friday March 04, 2011 @02:15PM (#2289363)
Doesn't infant mortality greatly skew life expectancy? I thought I remembered reading that it's the single biggest thing we've done to increase life expectancy, meaning if a hunter-gatherer reaches adulthood, they don't have an especially short lifespan compared to a developed country.
Re:Everything You Know About Fitness is a Lie by bane on Friday March 04, 2011 @03:32PM (#2289646)
Absolutely. But the premise we're testing here essentially boils down to "we should do things like cavemen because it's natural, because it's natural it's what we evolved to do, since it's what we evolve to do it'll be healthier"

The other component of that is of course that we're all fat and out of shape today because we eat foods that cavemen never had access to.

One measure of health is of course weight, but so is life expectancy. If we follow a life-plan where we're around some normal weight but die at 30 I'm not sure that's a great plan. We evolved to die around 30, most research into aging agrees with this (some say ~40), and that's "natural" I suppose, but I think I reject that notion that we should only do things in the modern world that fit what we were required to do a million years ago because it's what we evolved to cope with and eek out 3 or 4 decades of life.

Another is infant mortality, we evolved to reproduce pretty fast because we evolved to maintain population with lots of dead infants. We also evolved to produce slightly more males than females since men die faster, which is okay since fewer men can reproduce with more women.

We also evolved to be able to bear children in our early teens, to grow beards, hair and nails, and to have bad eyesight in some large percentage of the population. Should we lower the age of consent to 13? Not shave or cut our hair or nails ever and not wear glasses?

I'm not sure any of these notions work today, but extending the central argument out:

If we should eat like our ancient ancestors did since we evolved to eat like that and therefore it must be healthy, should we not live like our ancient ancestors did since therefore that must be equally valid by the "it's all natural so it's good" principle?

Re:Everything You Know About Fitness is a Lie by ubercore on Friday March 04, 2011 @03:53PM (#2289741)
I think you're missing my point: if it's infant mortality that keeps average life expectancy down, it's false to say that "caveman" diets are optimized for only aging to 30. I think it's closer to the truth to say that cavemen either died at birth, or lived a natural lifespan closer to modern man than an average would indicate. So you can't discount a "caveman" diet because average life expectancy was (and in some cultures still is) 30 years old.

And I think it's a straw man to say that accepting a "caveman" or "hunter gatherer" diet means we need to accept -every- aspect of "primitive" life.

EDIT: http://www.anth.ucsb.edu/faculty/gurven/papers/pdrdraft04182...

Re:Everything You Know About Fitness is a Lie by bane on Friday March 04, 2011 @04:23PM (#2289854)
Even if there is a 0% infant mortality rate, if everybody dies around 30, the average life expectancy can still be 30. Like I said, this is easy to test, there are still quite a few hunter gatherer cultures around, and they aren't exactly struggling to deal with an elderly care problem. This is pretty well studied. What you are supplying is conjecture, or perhaps an interesting hypothesis.

"I think it's closer to the truth to say that cavemen...lived a natural lifespan closer to modern man." Test it! I honestly don't know the answer, the data I managed to find in 10 minutes of searching says that hypothesis is incorrect -- but as you rightly point out my data includes infant mortality in the averages (I believe). But if you can find data that says "excluding infant mortality, pre-agrarian cultures have an average lifespan of 70-80 years" I'll be more than happy to accept that.

http://en.wikipedia.org/wiki/Life_expectancy

According to the entry above, there's a measure called e5 that should supply the relevant figures.

And I think it's a straw man to say that accepting a "caveman" or "hunter gatherer" diet means we need to accept -every- aspect of "primitive" life.

I'm not really attacking the diet per se, many of the recipes are actually pretty tasty and are generally pretty healthy. I'm attacking the faulty line of reasoning given as to why one should do this.

"it seems to be pretty healthy" is wishy washy, but okay

"You should eat this way because evolution made you to eat this way therefore it's healthy" is not, it present a long chain of reasoning that falls apart at almost every link, but it's presented as a kind of science, which it's not by this reasoning.

Re:Everything You Know About Fitness is a Lie by wil2k on Friday March 04, 2011 @07:59AM (#2287874)
"Don't eat what your grandmother wouldn't recognize". is how I've heard it being summarized. :)
Re:Everything You Know About Fitness is a Lie by yummyfajitas on Friday March 04, 2011 @08:34AM (#2287954)
So no Indian/Chinese/Japanese/Mexican food? No avocados? No seafood, unless your grandparents are from the coast?

(Food diversity sucket in our grandparent's era. )

Re:Everything You Know About Fitness is a Lie by bhousel on Friday March 04, 2011 @10:24AM (#2288311)
The Michael Pollan quote is actually:

"Don’t eat anything your great-great-grandmother wouldn’t recognize as food. (Sorry, but at this point Moms are as confused as the rest of us, which is why we have to go back a couple of generations, to a time before the advent of modern food products.) There are a great many foodlike items in the supermarket your ancestors wouldn’t recognize as food (Go-Gurt? Breakfast-cereal bars? Nondairy creamer?); stay away from these."

All those foods that you mentioned, a 19th century mom would recognize as food. Just not her kind of food.

From here: http://michaelpollan.com/articles-archive/unhappy-meals/ (and his books of course)

Re:Everything You Know About Fitness is a Lie by derleth on Friday March 04, 2011 @01:16PM (#2289099)
> All those foods that you mentioned, a 19th century mom would recognize as food.

Doubtful. I mean, the vegetables aren't cooked. That can't be healthy!

(Before anyone downvotes me: Look up how we used to cook vegetables. 'Boiled to a mush' just about sums it up. That's neither tasty nor healthy.)

Re:Everything You Know About Fitness is a Lie by mkr-hn on Friday March 04, 2011 @09:59AM (#2288199)
My grandmother fed me homemade butter biscuits and sausage with eggs any time I visited. The southeast is full of terror and deliciousness.
Re:Everything You Know About Fitness is a Lie by bhousel on Friday March 04, 2011 @10:30AM (#2288338)
There's nothing wrong with eating that kind of food, in reasonable proportions.
Re:Everything You Know About Fitness is a Lie by adolph on Friday March 04, 2011 @09:33AM (#2288091)
I think that one of the weaknesses of Pollan's saying is how it can be interpreted by people who haven't read his other stuff. Taken literally, someone much younger than Pollan might think that Pollan advocates for broccoli to be boiled and smothered in Velveeta.
Re:Everything You Know About Fitness is a Lie by rubashov on Friday March 04, 2011 @11:01AM (#2288456)
What would be wrong with steamed/blanched broccoli smothered in Velveeta? That's perfectly healthy.
Re:Everything You Know About Fitness is a Lie by byrneseyeview on Friday March 04, 2011 @09:32AM (#2288090)
Maybe what a grandmother would recognize as food.
Re:Everything You Know About Fitness is a Lie by Cushman on Friday March 04, 2011 @01:07PM (#2289054)
As someone who went from being pretty overweight to really fit simply by following a policy of eating no sugar or grains and as much deliciously fatty meat, eggs and cheese as I want, I have strong skepticism towards the conventional wisdom about "healthy" foods.
Re:Everything You Know About Fitness is a Lie by ilovecomputers on Friday March 04, 2011 @01:32PM (#2289175)
You only made a case against the lipid hypothesis, which Michael Pollan also criticized in his book, so you have fallen into his trap of eating healthy and didn't even know it.
Re:Everything You Know About Fitness is a Lie by Cushman on Friday March 04, 2011 @02:48PM (#2289493)
Meh? I buy store-brand bacon, eggs, cheap beef, and Vermont cheddar. When I treat myself, it's to a $12/lb steak (on sale at $6). I mostly don't eat vegetables aside from the odd mixed-green salad when I'm in the mood. I don't buy mechanically separated and prepackaged meat only because it either tastes worse, or costs more.

I eat whatever's cheap and tasty, as much as I want, mostly meat— the literal antithesis of Pollan's catchphrase. If I've fallen into his trap, it's a very cunningly hidden one.

Re:Everything You Know About Fitness is a Lie by georgieporgie on Friday March 04, 2011 @03:53PM (#2289740)
How do you ever manage to poop?

(serious question, though I appreciate the fact that I just asked the most base question in this entire comment page)

Re:Everything You Know About Fitness is a Lie by Cushman on Friday March 04, 2011 @04:53PM (#2289967)
The normal way, I guess? :P

In seriousness, there was an adjustment period of "intestinal irregularity" when I first switched, presumably due intestinal flora etc. adapting from substantial amounts of carbs and fiber to all fats and protein. These days I'd say I'm on the infrequent end of normal, pooping once every day or two, which I think is pretty typical for paleo folks.

If I do end up eating a substantial amount of carbs, usually at a restaurant or dinner party, it does often give me the runs later, which is my primary reason for strictly avoiding grains moreso than health or philosopical concerns. And if I drink too much (which is easy to do when you eat low-carb) all bets are off.

Re:Everything You Know About Fitness is a Lie by bmelton on Friday March 04, 2011 @08:25AM (#2287929)
The flip side to the caveman diet is that 1) it wasn't particularly planned. They eat what they could, when they could, and 2) There was a pretty major exercise component that went along with it, in that if they didn't hunt / fish / forage, they died of starvation.

The main issue with obesity is that people can easily afford to be obese and not too significantly impact their lives (aside from all health and social malaise of being overweight).

Eating how a caveman ate isn't a particularly bad diet, but misses out on the major aspect of a day filled with exercise.

Re:Everything You Know About Fitness is a Lie by ghshephard on Friday March 04, 2011 @10:51AM (#2288418)
Numerous studies (See the first chapter of "Why we get Fat, by Taubes) have shown that Obesity is a disease of poverty. The food that keeps you lean (protein/fats) is expensive. Carbs are cheap. Poor people eat carbs. Rich people eat steak, chicken, fish. There is no significant research that shows adding exercise to an overweight person's lifestyle will significantly reduce their weight - typically just increases their appetite.
Re:Everything You Know About Fitness is a Lie by yummyfajitas on Friday March 04, 2011 @11:31AM (#2288579)
If obesity is a disease of poverty, then how come truly poor people (e.g., the poor in India or China) are skinny?

Lack of money for food is not a cause of obesity. If your goal is to obtain 2500 calories (assuming that is what you need to maintain a healthy weight) for a little money as possible, you will consume 2500 calories of carbs. You will not become obese. If you instead consume 3500 calories and become obese, you are wasting money on 1000 extra calories. You are not constrained by cost. You could instead reduce consumption by 1000 calories, and spend the money on increasing the quality of the remaining 2500 calories.

There is no significant research that shows adding exercise to an overweight person's lifestyle will significantly reduce their weight - typically just increases their appetite.

Increasing exercise and holding consumption constant will reduce body fat. One of many studies:

http://www.duke.cardiologydomain.com/images/uploaded/dukeh/2...

Do a google scholar search. The only difficulty is that you'll find so many studies which measure additional benefits to exercise that some of the studies measuring only effect on body fat will be buried. (I.e., the majority of the articles have conclusions like "exercise reduces body fat AND increases muscle mass", "exercise reduces body fat AND breast cancer", etc).

I'm curious, did you hear this claim from Gary Taubes? The one time I read a blog post by him, I discovered him to be incredibly dishonest: http://crazybear.posterous.com/how-1-graph-reveals-what-3000...

Re:Everything You Know About Fitness is a Lie by btilly on Friday March 04, 2011 @02:01PM (#2289313)
What you say is perfectly logical, but subtly flawed when it comes to the USA.

If you're poor, odds are that you're eating fast food. The primary cost of fast food is not the cost of the raw ingredients, it is the time and effort to make the fast food. Furthermore many of the customers there see large portions as a value. Therefore fast food places have found it worth their while to offer large portions at a low price, and to inflate those portions with the cheapest foods that they can - french fries and soft drinks.

As long as fast food places do that, there is no real cost difference between 2500 calories and 3500 calories. Given how addictive most people find food that is high in sugar, fat and salt (which describes soft drink + fries), people tend to finish the portions that they are given. That will make you obese fairly fast, even if you don't "supersize" your portions.

Food banks often offer similar foods to fast food places because it is cheap and what their clientele is used to. This causes similar consequences. So in the USA even if you have no money at all, it is easy to get fat.

If there were cheap, convenient places to eat that made you pay according to calories and were willing to give realistic but smaller portions for significantly lower prices, then your reasoning would be absolutely correct in the USA.

Now you can argue that the underlying cause that makes this possible is that the country is rich enough that we can afford to be wasteful even on poor people. This is absolutely correct. But for practical purposes that detail doesn't matter. If you personally have little money and live in the USA, it is really easy to become fat.

An incidental note on exercise. Exercise burns calories. Obviously. However it takes very little extra food to offset the calorie expenditure from moderate amounts of additional exercise. Luckily exercise also affects appetite for many people, and muscle mass increases your basal metabolism. Therefore exercise is a win, but for moderate amounts of exercise not mainly because it directly burns off calories.

Re:Everything You Know About Fitness is a Lie by yummyfajitas on Friday March 04, 2011 @02:41PM (#2289465)
A Big Mac has 540 calories, fries are 380. The cost difference between 2500 calories and 3420 calories is the cost of a Big Mac and fries. McD's portions are big, but they aren't 3500 calories big. This isn't about finishing your portions. It's about not ordering and eating an extra meal.

You might be right if the only meals available had 1750 calories. In that case, your only choices are 1 meal (underfed) or 2 meals (overfed). But that simply isn't the case.

It is easy to become fat in the US, rich or poor. The poor are more likely to take advantage of this, it is true. But it doesn't save them money.

Re:Everything You Know About Fitness is a Lie by bmelton on Friday March 04, 2011 @05:47PM (#2290155)
Your argument is sound, but overlooks that most people don't consume their entire daily caloric intake in a single meal. If I have a Big Mac, Fries and a medium soda, I'm almost certainly overfeeding myself for that meal.
Re:Everything You Know About Fitness is a Lie by yummyfajitas on Friday March 04, 2011 @06:17PM (#2290230)
Here is a 3 meal/day McDiet with a beverage at every meal.

Breakfast: Egg McMuffin (300 cals), Hash Browns (150 cals) and Coffee (0 cals).

Lunch: McChicken (360 cals), Fries (380 cals) and Coca Cola (210).

Dinner: Big Mac (540), Premium Southwest Salad with Chicken (320 cals), and Coca Cola (210).

2470 cals/day.

To become obese, you need to add this:

Afternoon Tea: Sweet Tea (150 cals) and McRib Sandwich (500 cals).

Desert: Hot Fudge Sundae (330 cals).

Now you are up to 3450 cals/day.

There is nothing about being poor which compels you to spend money on the McRib Sandwich, sweet tea and the Hot Fudge Sundae.

http://www.mcdonalds.com/us/en/food.html

Re:Everything You Know About Fitness is a Lie by randallsquared on Saturday March 05, 2011 @02:04PM (#2292049)
Of course you can stop eating, but a poor person is more likely to get the 50 nuggets for $10, instead. Twice, for a total of 4750 calories, minus the ones they don't get to in each meal before they get cold. ;)
Re:Everything You Know About Fitness is a Lie by keiferski on Friday March 04, 2011 @12:20PM (#2288844)
If obesity is a disease of poverty, then how come truly poor people (e.g., the poor in India or China) are skinny?

Corn subsidy in the U.S.. Not much else to say.

Re:Everything You Know About Fitness is a Lie by yummyfajitas on Friday March 04, 2011 @12:41PM (#2288935)
Rice and wheat are subsidized in India too. And unlike US poor, the poor in India can't afford to supplement it with a Big Mac, Fried Chicken or a Premium Southwest Salad.

They are skinny because they eat less. They cannot afford 2500 calories, so they consume 2000 calories (mostly rice or wheat, depending on region) and suffer adverse health as a result. They also get exercise working physical jobs rather than sitting at home and watching TV.

Of course, even if corn subsidies were unique, poverty still don't explain why the US poor waste money on 500-1000 extra calories. If they were optimizing for cost, they would eat only 2500 calories of cheap corn.

Re:Everything You Know About Fitness is a Lie by cma on Friday March 04, 2011 @11:17PM (#2290801)
Corn subsidies in the US since more than a decade are mostly for fuel; the net effect is to make corn use for food more expensive, not less.
Re:Everything You Know About Fitness is a Lie by sedachv on Friday March 04, 2011 @04:50PM (#2289956)
You're completely discounting the effect different foods have on insulin response as a factor in obesity. 2500 calories from carbs has a different effect on metabolism than 2500 calories from protein and fat.
Re:Everything You Know About Fitness is a Lie by dasil003 on Friday March 04, 2011 @12:20PM (#2288843)
> If obesity is a disease of poverty, then how come truly poor people (e.g., the poor in India or China) are skinny?

Because they're not eating extremely processed foods based on subsidized grains that make them cheaper than real food... yet.

Re:Everything You Know About Fitness is a Lie by randallsquared on Friday March 04, 2011 @12:36PM (#2288912)
"and holding consumption constant" is the trick, ain't it? Works great if you want to lose a little weight later more than you want to eat another 500 calories now. Most people don't want that (me included, by revealed preference -- I'm over 300 lbs).

When people say that obesity goes with poverty, they're noting that virtually everyone eats until they are sated, and if you eat until you are sated with high-quality, expensive food, you will be far less likely to be overweight than if you eat until you are sated with low-quality, inexpensive food.

Re:Everything You Know About Fitness is a Lie by yummyfajitas on Friday March 04, 2011 @01:14PM (#2289092)
Exactly. Obesity goes with poverty because both are a result of a high discount rate.

High discount rate reduces the propensity for work (most poor don't work much, if at all), particularly work with a career path. Why work hard now just to have a middle class life in the future?

Similarly, a high discount rate cuts against a healthy lifestyle - why suffer through a run in the park and hunger right now, just for future health?

(Also explains correlation between poverty and: drugs, alchohol, unprotected sex, probably other pathologies I can't think of.)

High discount rate is the cause, everything else is an effect.

Of course, a high discount rate has nothing to do with the cheapness of carbs, fat and sugar relative to meat or veggies. Money is not the limiting factor. Willpower/preferences are.

Re:Everything You Know About Fitness is a Lie by randallsquared on Friday March 04, 2011 @07:21PM (#2290380)
You missed or ignored my point.

No one is saying that poor people couldn't eat healthy if they wanted to more than they wanted to feel satisfied. They're saying that given two people with the same metabolic genes, exercise level, and discount rate, if one of these two people spends ten times as much on food as the other, they will be likely to be thinner. This is because being sated with more expensive food results in eating fewer calories and better nutritionally than being sated with less expensive food, and this point has everything to do with the cheapness of carbs, fat, and sugar (which taste good no matter how prepared, essentially) relative to well-prepared meat and veggies.

Re:Everything You Know About Fitness is a Lie by koningrobot on Saturday March 05, 2011 @05:44AM (#2291271)
Are you (aside from your main point) saying that the calories in meat and vegetables come from elsewhere than carbohydrates and fats? There is lots of protein in lean meat, but protein is poisonous -- you can't depend on it alone for energy.
Re:Everything You Know About Fitness is a Lie by randallsquared on Saturday March 05, 2011 @01:56PM (#2292029)
No, I'm not saying that. I only repeated it to tie it to what yummyfajitas had said to me, because that was the part I was responding to.
Re:Everything You Know About Fitness is a Lie by jdminhbg on Friday March 04, 2011 @02:34PM (#2289436)
">>There is no significant research that shows adding exercise to an overweight person's lifestyle will significantly reduce their weight - typically just increases their appetite.

>Increasing exercise and holding consumption constant will reduce body fat."

I'm not sure you read the sentence you're responding to: "typically just increases their appetite."

Yes, if you lock a person in a room with the exact same meals every day, exercise will reduce their weight. A real world person who exercises though typically eats to compensate.

I'm not sure what your problem with Taubes is; your discovery of his 'incredible dishonesty' doesn't pass the smell test -- surely someone eating 7.5 extra strips of bacon per day would notice? There's a shot at his thesis being 'buy my book'; why is it more unreasonable to buy his cheap Kindle book than e.g. Tyler Cowen's to get the full scientific background? It's not like he's hawking some diet empire.

Re:Everything You Know About Fitness is a Lie by yummyfajitas on Friday March 04, 2011 @02:49PM (#2289495)
I'm not sure you read the sentence you're responding to: "typically just increases their appetite."

If you add exercise to a person's lifestyle without adding calories, they will lose weight. It's that simple. There is research to show this. I cited some of it.

your discovery of his 'incredible dishonesty' doesn't pass the smell test -- surely someone eating 7.5 extra strips of bacon per day would notice?

Go read Gary Taube's blog post. He spends thousands of words discussing that, according to the traditional calorie counting theory (which he is attempting to refute), the difference between a fat person and a thin person is "only" 20 calories above their respective maintenance levels. He then argues this must be absurd and incorrect, because how can "only a cube of sugar in your coffee" make you fat. This is an attempt at reducto ad absurdum.

He never, in his entire blog post, mentions the fact that the fat person is also eating 7 extra strips of bacon each day. If you read his article without being extremely careful, you will come away with the impression that the only thing the fat person eats that the thin person doesn't is an extra morsel of food each day.

Re:Everything You Know About Fitness is a Lie by jdminhbg on Friday March 04, 2011 @04:23PM (#2289855)
"If you add exercise to a person's lifestyle without adding calories, they will lose weight. It's that simple. There is research to show this. I cited some of it."

That's great. There is also research that shows that acceleration due to gravity at sea level is 9.8 m/s^2, but that has little to do with what the OP said, which is that "exercise tends to increase people's appetites." You're refuting something he never claimed.

"He never, in his entire blog post, mentions the fact that the fat person is also eating 7 extra strips of bacon each day."

I'm guessing because that's not the case? You're begging the question by showing that his claims don't work out according to the calories in/calories out model.

Re:Everything You Know About Fitness is a Lie by yummyfajitas on Friday March 04, 2011 @06:27PM (#2290249)
You're refuting something he never claimed.

From the original post: "There is no significant research that shows adding exercise to an overweight person's lifestyle will significantly reduce their weight - typically just increases their appetite."

I'm guessing because that's not the case?

If you take as given the cals in/cals out model (as Taubes does, in an attempt to refute it via reducto ad absurdum), they do.

Re:Everything You Know About Fitness is a Lie by light3 on Friday March 04, 2011 @07:57PM (#2290467)
Very true, in my mother's generation overweight people in China were seen as 'freaks', as in circus freaks. This was even when there was enough food to feed everybody, most people remained in shape because

1. The food was whole. 2. People were very active, particularly where my mother grew up(Shanghai), mothers usually got up at 5am to get the fresh produce from markets everyday, people walked around a lot, bicycles were a luxury item.

Re:Everything You Know About Fitness is a Lie by jon914 on Friday March 04, 2011 @07:35PM (#2290404)
The poor in India and China don't eat enough to become obese, let alone gain significant weight.

I think that the term "poverty" relates specifically to developed countries where fast food is the cheapest way for the poor to feed themselves off the dollar menu.

Re:Everything You Know About Fitness is a Lie by argv_empty on Friday March 04, 2011 @12:40PM (#2288931)
Poor people eat carbs.

Poor people eat fast food. Good food is cheaper than McDonald's, but you have to be able to cook.

Re:Everything You Know About Fitness is a Lie by jdminhbg on Friday March 04, 2011 @02:36PM (#2289451)
Fast food and carbs are equivalent: Potatoes, white flour, and sugar. The meat/vegetable content is negligible.
Re:Everything You Know About Fitness is a Lie by argv_empty on Friday March 04, 2011 @03:38PM (#2289679)
According to USDA, the recommended (carb, fat, protein) calorie distribution is (53%, 29%, 18%). Looking at McDonald's nutrition facts, the hamburger follows this distribution pretty closely; the other sandwiches appear to skew towards fat. Even fries still only get half their calories from carbs (and almost half from fat, well above the recommended 29%). When eating out, fat is cheap.

Again, good meat and produce (raw materials for cooking) are also accessible for less than it costs to eat out.

Re:Everything You Know About Fitness is a Lie by nitrogen on Friday March 04, 2011 @06:46PM (#2290304)
Where do you buy your affordable meat and produce? Every time I buy raw ingredients for a meal I end up spending like $25 (plus $100 worth of my time) for one or two servings that I could've got for $15 from Applebee's.
Re:Everything You Know About Fitness is a Lie by argv_empty on Friday March 04, 2011 @09:56PM (#2290704)
Where do you buy your affordable meat and produce?

The grocery store (and I don't mean some specialty place like Whole Foods -- if we're talking about eating on a tight budget, something like Wal-Mart will be much more helpful).

Re:Everything You Know About Fitness is a Lie by apinstein on Friday March 04, 2011 @10:31AM (#2288343)
Actually, people cannot afford to be obese. They are massively subsidized by others in terms of health care expenses. Healthy people and other taxpayers are footing the bill.
Re:Everything You Know About Fitness is a Lie by rubashov on Friday March 04, 2011 @10:57AM (#2288439)
> don't eat boxed foods or foods that went through multiple stages of processing

What's wrong with cheese, or butter? Or sauerkraut and pickles? All processed food. Also, powdered mashed potatoes and puffed rice are just conveniently preserved starch. They're perfectly healthy.

The "processed food" and "mostly plants" stuff is just marketing psychology that taps into SWPLs' inner hippie. The real diet rules aren't mystical:

* Avoid sugar, especially fructose

* Avoid vegetable oils

* Don't be afraid of saturated fat

* Prefer rice and potatoes to wheat/rye/etc

* If you're fat, try cutting out starch, but don't worry about it if you're not fat.

Re:Everything You Know About Fitness is a Lie by bane on Friday March 04, 2011 @12:28PM (#2288884)
A couple years ago I worked on a market research contract for a food grower that tried to answer the opposite, "what does all natural mean" (or some set of synonyms)?

Turns out it's virtually impossible to define it.

Here was one of the exercises we went through:

1) Take an orange, grown in the wild without being touched in any way by the hand of man.

2) If you eat that orange, are you eating something that's "all natural"?

3) If you squeeze that orange, and drink its juice, is it still "all natural"?

4) If you strain the juice to eliminate pulp, through a handwoven cloth (or a mat of grass or some other "all natural straining device") is it still "all natural"?

5) If you heat the juice and drink it, ie cook it, is it still "all natural"?

6) How about if you heat it long enough to boil off some of the water?

7) How about long enough to boil off all of the water?

8a) What if instead of boiling you simply dry out the juice in the sun?

8b) What if in addition to boiling it, you dry the remains in the sun?

9) What about drying it in an oven?

10) Suppose I take the dry particles left and through any conceivable natural operation sort them by density? Say, putting the particles into an all natural basket and shake it vigorously until my arms are tired?

11) Now how about I remove particles of a certain density? Is the remaining product natural?

12) Now suppose I add water to the remaining sorted particles, fresh from a mountain spring.

13) Suppose I do the same (#1-12) with other plant sources?

14) Suppose I mix the results into either a mix of powders or a mix of reconstituted liquids?

This is an actual replication of a process for producing an artificial sweetener (not with fruit, but a different plant source). That sweetener is generally not called "all natural" but the process is more or less the above.

At every point in the process we haven't done anything that's not natural. There's some analogy to every step that you probably have to do with any food source to make it edible. Nobody thinks squeezing, chopping, cutting, cutting plants creates a processed food. Or straining liquids or really any of the above. We've been doing all of the above as a species since before writing.

But many people think the result of the specific combination of the above, #14, is a "processed food".

How about cheese? Most cheese, even modern cheese is just milk and bacteria in a controlled spoilage environment. As natural as dirt. And in general the result of very few steps.

Defining "processed food" from "natural food" ultimately ends up trying to set some kind of arbitrary definition delineating the two -- "processed food is any food that has undergone more than 3 processing steps" I have news, chopping and peeling fresh picked garlic takes more than 3 steps.

1) Wash the dirt from the bulb

2) Dry the bulb

3) Remove the outer layers of onion skin

4) Separate the cloves out of the bulb

5) Cut the hard connective bits

6) Peel the layers of onion skin from the cloves

7) Chop to size

Now if I include it in a recipe I'm including it in even more processing steps. I may boil it, grill it, bake it, or some other cooking process.

I may strain it from a broth if all I care about is the flavor.

Before I can actually get the garlic into my mouth, through even an elementary recipe, I've had to process it at least 8 times, likely a dozen.

Re:Everything You Know About Fitness is a Lie by jimbokun on Friday March 04, 2011 @03:41PM (#2289689)
"2) If you eat that orange, are you eating something that's "all natural"? 3) If you squeeze that orange, and drink its juice, is it still "all natural"?"

The In Defense of Food argument is not so much about whether or not the food is still "natural" at that point. The point is you are throwing out much of the orange, and there is probably stuff in the part you are throwing away that is good for you.

Pollan talks about how at one point a scientist thought he had isolated all of the necessary parts of nutrition: proteins, fats, and carbohydrates.

Then they discovered vitamins. Oops. If you actually believed what that first scientist said, you probably died of scurvy.

So, let's take our food stuff made from proteins, fats, and carbohydrates and inject some vitamins in them! Should be all good now, right?

Except, we continue to discover stuff in the food that grows out of the ground and on trees that turns out to be good for us. (I forget the more recent examples he mentions in his book, but you get the idea.)

So your choice is basically to take the chance that the scientists have finally found all the parts of plants and animals that are good for us, synthesized or extracted them, and injected them into that box of Chocolate Frosted Sugar Bombs you are eating. Or you can just eat the actual plants and animals and be done with it.

Re:Everything You Know About Fitness is a Lie by bane on Friday March 04, 2011 @04:10PM (#2289814)
Not to entirely disagree with you but

Or you can just eat the actual plants and animals and be done with it.

You don't just grab a potato out of the ground and eat it whole. Or jump out into a field of cattle with a fork and knife ready to go. You can do that with some foods, not so much with others. If the metric is "you must be able to eat it right out of the wild with 0 processing" you're going to eat a lot of raw tomatoes and peppers and not a whole lot else.

In many cases, you have to process the food source to make it edible. Rhubarb for example has poisonous leaves that will kill you. The green bits of the tomato can surpress cardiac functions. For most animals you can't just start biting chunks out of them. You may have to remove internal organs that are inedible, bones (I don't see many paleo eaters advocating cracking open thigh bones to get at the marrow very often btw), etc.

http://www.environmentalgraffiti.com/news-10-poisonous-fruit...

In some cases, edible parts may contain bad stuff, pork meat for example is well known to be unsafe raw. I'm pretty sure cavemen ate pigs (or at least boar). Cow brains may contain prions. etc.

I do agree with you that food manufacture from chemical components on up is likely not complete, but there's not really much of that in the industry. Even highly "processed" foods like hotdogs or McDonald's chicken McNuggets are just ground up and cooked scrap meat and connective tissue (all paleo friendly!). They have all the stuff that's in meat anyways. The process to make imitation cheese doesn't generally fall under that kind of manufacturing process.

Many common and cheap foodstuffs also don't contain much nutrition. Vitamin fortified rice has probably improved the lives of a billion people.

People also get all kinds of scared when the chemical names for common food components are used. Should I use "salt" or "sodium chloride"? Should I avoid all foods with Monosodium Glutamate (good luck with that)?

But like anything it all just comes down to moderation. Nutmeg is great and natural, but if you eat too much of it you'll get have hallucinations and may die. Who knows what's in a clam, perhaps if you eat clams 3 times a day for a year (a completely possible scenario for a caveman) you'll have serious health problems like mercury poisoning or some other issue.

Who knows?

and there is probably stuff in the part you are throwing away that is good for you.

You may also be throwing out stuff that's very bad for you. It's all conjecture.

Re:Everything You Know About Fitness is a Lie by jimbokun on Friday March 04, 2011 @06:42PM (#2290289)
Yes, I very greatly over simplified.

What Pollan actually advocates is eating a traditional diet that has been refined over centuries. He says that which one you pick doesn't matter that much.

The traditional diets of people living around the Mediterranean and people living near the Arctic circle have nothing in common, but according to Pollan, either will give you better health outcomes than a normal Western diet.

If people have been eating a certain way over a long period of time, they have probably learned to avoid the stuff that will kill or injure you, and probably have discovered foods that nutritionally complement each other, as well. (He gave examples of such complementary foods in traditional diets, which I can't remember right now.)

Re:Everything You Know About Fitness is a Lie by bane on Friday March 04, 2011 @07:18PM (#2290370)
(He gave examples of such complementary foods in traditional diets, which I can't remember right now.)

One thing I've definitely noticed time and again is how complete traditional diets tend to be. It's amazing, thousands of years ago, with no concept at all of nutrition, people managed to put together fantastically complete (and tasty) diets.

Re:Everything You Know About Fitness is a Lie by defen on Saturday March 05, 2011 @02:18AM (#2291009)
It's amazing, thousands of years ago, with no concept at all of nutrition, people managed to put together fantastically complete (and tasty) diets.

I can't tell if you're being really subtle here, but the causality is probably reversed - people ate whatever they could get away with, and over the course of many tens of thousands of years they evolved to process that food efficiently. Anatomically modern humans evolved approximately 200,000 years ago, and agriculture was only invented 10,000 years ago. And industrially produced processed food didn't become a staple of most Westerners' diets until 65 years ago.

Re:Everything You Know About Fitness is a Lie by bane on Saturday March 05, 2011 @10:07AM (#2291564)
No I actually mean it. I've had the good fortune to travel all over the world and it continuously amazes me that no matter where I go that local traditional food, made with local ingredients, is so commonly put together in combinations that are completely nutritious (and tasty).

The skills necessary to survive on the local available food in one place don't entirely translate someplace else. Somebody had to look at a squid for the first time and decide to eat it for example. Or that the rotting month old cabbage would be a good meal.

Traditional foods are often preagrarian foods in some cases. You can find expensive wild foods restaurants in South Korea for example that serve only food you can gather in the mountains, mushrooms, pine nuts, pine needles, ferns, wild onions, etc. These are things that people cobbled together before they had any knowledge at all of nutrition and amazingly, when we look at them today with the modern eye find out that they represent a fantastically complete diet, rich in essential nutrients. In Latin America you can still find plenty of pre-Columbian cuisine with similar characteristics. And I'd wager elsewhere as well.

Put another way, why didn't they just settle on say mushrooms? How come the entire diet for a people isn't just one food? Or a combination of foods that represent a diet lacking in a certain vitamin? Amazingly, wherever you go, the traditional foods tend to make up a complete diet.

It seems a modern curse that we can gorge ourselves on singular foods and grow fat and suffer malnutrition at the same time. Only today can somebody eat hamburgers and pizza 3 times a day for years.

Re:Everything You Know About Fitness is a Lie by mixmastamyk on Friday March 04, 2011 @04:33PM (#2289881)
Uranium is all-natural. ;)
Re:Everything You Know About Fitness is a Lie by mkr-hn on Friday March 04, 2011 @09:47PM (#2290683)
Also natural: A furious ball of gas floating in space, waiting for the right imbalance to terminate our brief existence.
Re:Everything You Know About Fitness is a Lie by enjo on Friday March 04, 2011 @01:02PM (#2289035)
This recalls a conversation I had with a highly noted doctor of nutrition at University of Colorado @ Denver.

He was the first to admit that nutrition sciences were largely confused. All of those years of studying cholestrol and various other substances in isolation had led to a ton of barely viable nutrition advice that didn't seem to work in practice.

He has come to believe that the research continues to point in a single direction. It's more or less what the OP said, with a bit of twist. The problem isn't processing in the traditional sense... it's processing in the industrial sense. Modern processed foods contain a whole litany of preservatives that seem to have a profound impact on food in two ways.

1. It often more or less removes much of the health benefit of actually eating. Vitamins, minerals, and a whole range of amino acids magically disappear. Post-processing foods tend to be left high in carbs and so called "empty calories". This is why, in his mind, McDonalds and the like are so damaging. It's why TV dinners (even the 'healthy' ones) are terrible for you. By eating more "whole" foods (as the OP suggested) you avoid so much of this.

2. Those preservatives themselves trigger body processes that cause all sorts of strangeness. Why can you drink Coke Zero everyday and not lose weight (or Stevia, Splenda, etc..)? Because your body has a natural metabolic reaction to the sweetness. It's still calorie-in/calorie-out, your just sabotaging the calorie out. The prevailing theory about this has something to do with energy storage back in our caveman days. When eating sweet fruits and the like, our bodies would go into energy storage mode for the coming winter. In those days fruits represented one of the few times that we would experience a calorie surplus. Apparently many common preservatives trigger that same response.

For the last couple of years I've essentially followed the OP's advice. I eat as close to "whole" as I can. I eat quite a bit more meat than he's advertising, but I try to make sure it as unprocessed as possible. I eat a lot of whole vegetables and a bit of fruit. Nuts and the like are a staple. I eat fewer refined carbs, but I don't necessarily try to stay far away from them either.

I'm healthier, fitter, and all around in better shape then I ever have been.

Re:Everything You Know About Fitness is a Lie by ilovecomputers on Friday March 04, 2011 @01:09PM (#2289073)
Of course, the experts have a better sense of why these advices work (that's why I trust Marion Nestle's advice more than Michael Pollan's). You're right, I meant processed in the industrial sense (you can consider tofu processed out of that context).
Re:Everything You Know About Fitness is a Lie by SageRaven on Friday March 04, 2011 @12:39PM (#2288927)
So, you're telling us that a couple of Slim Jims is no worse for a person than a serving of steak?

I think the poster you replied to was making the point that industrial mangling of our food likely has some detriment to our health. Sure, cheese and kraut are processed (we make both at home, btw), but they're more natural processes than, say, turning corn into corn syrup. In fact, the end products of these natural processes are often argued to be healthier (or at least offer more bioavailble/digestible nutrition) than the original material.

Look at the ingredients list of your average loaf of store-bought wheat bread. All of the continuant ingredients have been refined, had preservatives added, then re-mixed to make "bread". The list is typically a mile long! Take my wife's home-made bread, as a counter example: whole wheat flour (ground minutes before making, from home-grown wheat), salt, maybe a dash of sugar or honey, water, and our sourdough starter.

Re:Everything You Know About Fitness is a Lie by dkobryn on Friday March 04, 2011 @12:46PM (#2288964)
Cheese, butter, sauerkraut and pickles are all products of fermentation. Fermentation is how people preserved and enhanced the nutritional composition and digestibility of many foods. Process's like canning, freezing, refrigeration, dehydration, bleaching(flour,sugar,salt) and pasteurization, to name a few, are all examples of modern food process's that typically alter the food in some way that favors shelf life, cost or convienence over nutrient density.
Re:Everything You Know About Fitness is a Lie by draebek on Friday March 04, 2011 @05:01PM (#2289988)
Wait, what's wrong with vegetable oils now? Last I heard things like olive oil were supposed to be healthy.