Palaeolithic diet: Should we all eat like cavepeople?
bbc.com
bbc.com
That said, virtually every major health agency recommends a diet where carbohydrates (from vegetables, fruits and grains) represent the majority of calories. For an individual, under the guidance of a doctor, it can make sense to alter this. For everyone else, just follow the guidelines.
It's still the square meal from the 1970's with some small adjustments. Eat a small plate that looks like that. The meat portion should be 4 ounces or so.
You're referring to KFC's Double Down I assume, but if you look at it's nutrition facts (1) it's not as bad as you think, especially for a Paleo/Atkins based diet. And it's delicious.
1 - http://fast-food-nutrition.findthebest.com/l/1377/KFC-Origin...
The easiest take-away is to start with avoiding heavily processed food, regardless of the macro ratios.
| food (100g prepared) | cals |
|----------------------+------|
| KFC double down | 224 |
| whole wheat bread | 259 |
| brown rice | 110 |
| corn | 86 |
| carrots | 41 |
| cantaloupe | 34 |
But I guess if you love saturated fat and get your nutrition advice from bloggers and journalists it's awesome!edit: just realized there's supposedly no trans fats in KFC food. This is surprising and interesting. (apparently trans-fat free since 2007 http://en.wikipedia.org/wiki/KFC)
Ime it's been most problematic to get "real food" on the go, on travels, airports, etc. I feel like there's a disruption waiting to happen here in many western countries (for example in Thailand it's relatively easy to get fast-food made from fresh ingredients just-in-time).
Aren't these health agencies also associated with governments which frequently give preferential treatment and funding to certain groups within the food industry?
You either refuse to trust Health Canada, USDA, British Nutritional Foundation, NHMRC and so on (including all bureaucrats and scientists),
or you study chemistry and biology, medicine and nutrition,
or you accept the overwhelming consensus.
Sigh.
I get sick of reading this, that people think it's some grand conspiracy, or that big corporations are poisoning you. Look, for most people (read - you, me and most people around us) - it really does boil down to self control. Eat less food, and exercise more.
I'm always amazed by the portion sizes I get when I go out. And then when I don't shovel down food like my friends, they're like, "What's wrong? Are you sick? You should go see a doctor".
I'm like, no...err, I'm just full?
Yes, I have moments of weakness and I have my vices (liquorice...yummy), but if you just cut down on food in general, and the sugar and processed stuff, you will lose weight. I went from around 75kg to 68kg that way - sure, I suppose I could go lower, but I don't think I could maintain that level of self-control 24/7...haha.
And another poster is right - a lot of the success of these fad diets is probably just due to people being conscious of what you eat - which they're normally not. The fact they're dieting probably means they realise exactly how much they're eating, and consciously or not, cut down on it.
I suspect, with no research other than my own life (anecdote of one), that this is the fundamental benefit of any diet like paleo. Start with "food," avoid things in the ingredient list that are not "food" as much as possible.
For example, when buying peanut butter (arguments for or against legumes aside), prefer the one where the entire ingredient list is "peanuts."
Your ingredient list should be zero (produce and meat) or very short.
There is a burger joint in Santa Cruz, CA (aptly named "Burger.") that has a menu item called "The Snooki" which is a chili burger that uses two grilled cheese sandwiches as the bun. They have some other interesting items but that one just screams "heart attack."
The tl;dr seems to be:
"What happened? Both groups lost weight, but after six months the women on the Palaeolithic diet had lost more, and their waists now measured less than those on the Nordic diet. It seemed as though this diet was better, but then things changed. After two years there was no difference in weight between the two groups. The only difference was in levels of the harmful blood fats, triglycerides, but even then they were at what would be considered safe, normal levels in the people on the Nordic diet too. Both groups found the diets difficult to manage and most people didn’t achieve the targets of eating the right amounts of each food group."
and, from the closing paragraph:
"When it comes to losing weight, the advice is pretty dull – eat less and exercise more."
When you cut out processed foods, and grains, you are left only with pretty much only healthy foods, so it's no wonder they feel better. But that isn't the same as saying all grains and processed foods are bad for you.
So it's not just a question of eating varied vegan food as a side-effect of not getting bored with it, but getting enough vegan food that has proteins in it.
Does paleo suffer the same deficiency, i.e. is it simple to be lacking in some specific substances that are pretty vital when following a paleo diet?
B12 is a different issue. I cheat and eat Corn Flakes and plain Cheerios with various types of fortified "milks".
It's certainly possible for a vegan to miss certain amino acids, but it's not as hard as it's made out to be to get them all.
Deficiencies exist in all diets (as they are, by nature, restrictive), the problem is that the extent of these deficiencies is blown way out of proportion. It is very hard to be truly deficient in a vitamin/mineral/amino acid in the privileged western world, but there are a few diets which do mess this up, and vegan is one of them, particularly iron for women.
Even if the body treated all calories equally, automatically storing all excess energy as fat, the paleo diet could still have an advantage purely because of its interactions with human physiology somehow reducing appetite and hence reducing total calories consumed.
1. http://en.wikipedia.org/wiki/List_of_countries_by_food_energ...
From personal experience, I would say the average weight gain per year in the US is a few kilograms, let's say 2. This is 18000 calories in excess, which is just about 50 calories a day, or basically one apple too many. The clear lesson to be learned is to cut back on the apples.
There are some studies that agree with my anecdotal evidence: http://www.livestrong.com/article/142567-average-increase-we...
"Food consumption refers to the amount of food available for human consumption as estimated by the FAO Food Balance Sheets. However the actual food consumption may be lower than the quantity shown as food availability depending on the magnitude of wastage and losses of food in the household, e.g. during storage, in preparation and cooking, as plate-waste or quantities fed to domestic animals and pets, thrown or given away."
This is the amount of food available for consumption per person, not the amount consumed. Waste at the grocery store, waste at home, and uneaten food left on the plate are not taken into account, and I would guess that all three are important factors.
I have friends who've been all over the whole low-carbohydrate and grain-free fad. They're still fat. That's probably partly due to the quantity of what they're eating, plus there's a lot of junk food that doesn't contain carbohydrates.
Myself, I like my carbohydrates, and I eat a fairly large amount. And most of the other triathletes I train with, or endurance guys - they also eat a stackload of carbohydrates, and are pretty darn healthy looking. Also, most professional cyclists/runners are probably also quite carbohydrate heavy.
So I don't get it when people say carbohydrates are evil, and you'll get fat eating them. I don't think we know enough about the science to go one way or the other on something like this.
If it works for you, sure. But I suspect a lot of it's just due to being more attentive to what you're eating, and having good self-control. Eat less and exercise more - that's been the line since the 1970's, so it's hardly anything revolutionary.
Heck, our ancestors probably figured out if you ate less, you'd lose weight...
Interesting note in the conclusion: "Adherence to protein intake was poor in the PD group."
I wondered if this would impact skeletal muscle mass, but the author's previous research indicates that does not appear to be the case.
http://onlinelibrary.wiley.com/doi/10.1111/joim.12048/abstra...
To me, this is an argument for eating real foods, and a reason to be skeptical of things like soylent. But I don't think you can get from there to saying it doesn't matter what you eat, or that anybody with a rationale behind their food choices is delusional.
While we may have not evolved a great deal over the last 30 thousand or so years, our bacteria may well have. That would cover our entire digestion systems mouth to anus. I suspect those bacteria have evolved in many ways that may mean we can eat a more modern diet without doing any harm or perhaps doing better. Has this been covered by any of the studies?
I have to question the avoidance of things like bread. Even in Paleolithic times we had crude forms of processed grains and bread. Are proponents of palaeo saying to cut these out completely or just cut out the highly refined kinds?
- eat what you can kill
- eat what you can gather
- eat only stuff that can be eaten raw (that includes meat and fish)
I followed a (modified) ketogenic diet very successfully for the winter and lost 20 lbs. That diet will absolutely NOT work for everyone but it will work for many people. As will paleo, as will atkins, as will south beach. Find out what works for you. Experiment.
Finding a magic bullet for dieting is like finding a magic bullet for fashion. There is NO one size, one style fits all solution.
Your body turns into a fat burning machine. Any way you can achieve it without feeling like you are starving is going to be an effective weight loss strategy. Paleo, Atkins, Lemon/Honey/Coffee/whatever detox, etc. You cut out carbs, your liver starts burning fat.
But beware: They (the scientific community) haven't reached consensus on whether you should do this long term[1]. It seems to be trending towards "it's probably okay" though. I think it puts more strain on your kidney's (because of the ketons)
[0] https://en.wikipedia.org/wiki/Ketosis
[1] http://scholar.google.com/scholar?q=long+term+ketosis&btnG=&...
[2] Disclaimer: I'm not a dr. I most likely am wrong about more than 1 thing I've said :-)
The magic bullet for diets: a moderate intake of food from a diverse diet consisting mostly of fresh fruit, vegetables and some form of protein, paired with ample exercise. Wether you call it 'Paleo' and leave out 'modern' ingredients, leave out the carbs and call it Atkins, or focus on good carbs and good fat (South Beach), it doesn't matter. My wife lost a good amount of weight by eating until she didn't feel hungry anymore, and exercising regularly.
Didn't they? Is that based on the median age, or the average? Because the average age tends to be skewed by infant mortality.
> , and there's the little thing called evolution, too.
The central argument is that our bodies haven't changed significantly in the time between "cavemen" and present day. So evolution is central to the argument of its usefulness. Whether it is correct that the evolutionary forces is relatively insignificant is, perhaps, up for debate.
All the people complaining about this diet being a fad are just regurgitating the fads from their childhood as facts. Vegetables and fresh fruit needn't form anywhere near a majority of a diet for you to be healthy, there are enough traditional societies for this.
The problem for the modern diet is that we have the appetites of an animal that should burn about ~4000 calories a day yet only expend around ~3000 on average.
Now if you want to be healthy as well as skinny instead of lowering your calorie intake you're much better off increasing your exercise.
The "thrifty gene" hypothesis: http://en.wikipedia.org/wiki/Thrifty_gene_hypothesis
For them, it seems that meats, vegetables, fruits and native whole grains probably should be the majority of their diet, and adding sugars, processed grains, and toxins like alcohol have been disastrous.
I think with typical modern foods it is somewhat difficult to get adequate micronutrient intake on a sub 3000 calorie diet. This is where the calorie in/out idea falls down. If you undereat you are going to tank your metabolism and also have some deficiency problems.
Not only are we made to be walking around getting exercise for much of the day, it is critically important to realize we are made to be doing it outside. Sun light exposure is a huge deal for health. People who spend time outside live longer. Just light exposure on its own boosts metabolism.
I agree with you about the activity though.
It's like you go to rural China, and you see the farmers eating tonnes of rice and vegetables. And I'm sure the low-carbohydrate crowd is going "OH NO! You'll get fat!!".
Well, no, they're farmers, and they work damn hard outside all day.
Or the fact that professional swimmers down 20,000 calories a day - well, yes, if you're in the pool 6 hours a day and doing weights out of it. You're still going to look like Thor...
I agree with you that the caveman parable is silly but you are also drawing a false conclusion. It probably wasn't a caveman's diet that caused him to die young.
What I meant was that you can't draw any 1:1 conclusions to the diet-to-health relation of cavemen compared to our diet-health relation. As always, people find it hard to understand that correlation is not the same as causation.
For instance, the best index put together so far lists potatoes as the most satiating. And the number two is a very lean fish.
[0] - (pdf) http://www.ernaehrungsdenkwerkstatt.de/fileadmin/user_upload...
It's the energy density and palatability, not macronutrient content.
http://jn.nutrition.org/content/130/2/268.long
"In studies of satiation, it is important to match the palatability of the foods when they are compared. If it is not, the fact that one food tastes better than another could override any effects of the nutrient composition on amount consumed (Drewnowski 1998). In addition, to study the specific effects of macronutrients, they must be manipulated independently of energy density."
"These three studies indicate that the amount of fat in the diet did not influence satiation when the energy density was held constant."
"These results provide clear evidence that the energy density of food can affect satiation independently of macronutrient content and palatability."
The one point I'm going to make is that our ancestors of a million years ago ate a very wide range of diets that were entirely ecosystem & lifestyle dependent (as we still observe in the modern world). So there is no such thing as "the diet" our ancestors ate, they ate many diets, some were better than others.
I also find the assertion that our digestion - even in terms of commensal gut bacteria - hasn't changed in that time a bit odd. We observe rapid adaptations to diet (e.g. in a handful of generations) in other species.
I would argue these problems have been around forever they just may be more identifiable today. Now the rate at which we get things like heart disease is probably going up because of the rise in obesity. A diet is not exactly the problem its more of the rate and quantities in which a lot of people eat.
Just research what science (not blogs) has to say about spending your life in ketosis.
Plus, there's nothing Paleolithic about the Paleo diet: http://www.youtube.com/watch?v=BMOjVYgYaG8
> So, there’s no hard and fast evidence yet that we should be eating like cavepeople. It is of course unhealthy to eat a diet which mainly consists of highly processed foods like white bread and sugary cereals, but this doesn’t mean that all dairy products and grains need to be avoided unless you have a specific problem with them.
Once we made the switch to a non-paleo diet is when we really started to advance beyond hunter/gatherers.
Literally none of that is true, these are just old diet fads that have become folk knowledge.
People have managed to survive for thousands of years in the arctic circle eating nothing but fatty foods, people have survived in the fertile crescent for thousands of years eating nothing but cereals for thousands of years.
The human body can adapt to just about any sort of food.
What people nowhere have adapted to do is sit in a chair for 14 hours a day and not move.
I think most of us would enjoy a better quality of life if we ate optimally and stayed active, but genetics seems to be a key factor nonetheless; luck of the draw.
Then I expressed what I believe to be the healthiest diet there is.
There are people living off cheetos and ding-dongs with cola their only beverage, but that doesn't mean much with regard to what I'm talking about.
Humans can live off
Now you don't need to go far away in time to find cultures with healthy food habits. Do you?