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| | #21 |
| Administrator Join Date: Jan 2007
Posts: 343
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| | #22 |
| Senior Member Join Date: Jan 2008
Posts: 108
Reputation: | "You cannot go against nature, 'cause when you do, going against nature is a part of nature, too." To add some facts to the discussion: http://www.beyondveg.com/tu-j-l/raw-...ooked-2f.shtml "Overall vitamin losses due to cooking are relatively modest. ... Average vitamin losses after correction for water loss range from about 10 to 25% in most cases. ... [D]ietary variety is as significant to nutrition as cooking. ... [T]here is a strong case to be made that variety is at least as important as cooking practices: someone eating 95% raw fruit is far more likely to be vitamin-deficient than someone eating a 100% cooked diet, but including a variety of foods like liver, green vegetables, etc." Cooking increases the digestibility of most starches (in other words, our bodies' ability to convert the energy in the food into energy we can burn) by 2 to 12 times, and also increases the digestibility of the most common plant-based proteins (those in grains and common legumes such as soy). In terms of saving fuel, you would have to think more globally than just what's going on inside your house. If you are able to eat purely local, that's one thing. But if you're comparing the fuel cost per unit of nutrition for something like fresh raw strawberries or peas shipped on refrigerated trucks from across the country, vs. processed equivalents shipped by train, the amount of fuel used in cooking or reheating pales in comparison to the amount of fuel uses in transport. In the grand scheme of things, I believe the ability to broaden our food procurement and storage strategies and increase macronutrient availability through cooking has been a key aspect of our species' ability to populate the planet, and without this critical technology we would not have been able to free ourselves from an endless animal routine of grazing and instead devote our time to thining, creating, and posting on the Internet. Cooking food predates Homo sapiens, and so it is accurate to say that we are an animal whose alimentary canal is entirely evolved in the context of a cooked-food diet. What did our ancestors eat? Whatever the hell they could get their hands on. |
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| | #23 | |
| Senior Member Join Date: Jan 2008 Location: California
Posts: 414
Reputation: | I've been watching this thread for a while and finally thought I'd chime in with my two cents. I think it's very good to consider the environment in everything you do; if every person makes an effort to save one bit of energy, it adds up and makes an overall difference. But about this argument that cooking/processing food being bad and unnatural: Yes, it's good to try to save as much energy as possible. And yes, it is true that some or most foods may contain the most nutrition when eaten uncooked. And yes, a lot of processed foods are not healthy for you. But not all processing of foods is for the worse. For instance, it has been shown that frozen fruits and vegetables contain just as much, and sometimes more, nutrition than fresh (confirmed by the FDA in 1998). The reason: "Nutritionally speaking, frozen veggies are similar to -- and sometimes better than -- fresh ones. This makes sense, considering that these veggies are usually flash-frozen (which suspends their "aging" and nutrient losses) immediately after being harvested. Frozen veggies were often picked in the peak of their season, too." (Frozen Vegetables are Hot! by Elaine Magee, MPH, RD; Fresh vs. Frozen? Choosing your fruits and vegetables by H. K. Jones, RD) As to the "naturalness" of cooking, humans have been cooking for tens of thousands of years. According to Culinary History, Evolution of Cookery Pt I: "From whenever it began, however, roasting spitted meats over fires remained virtually the sole culinary technique until the Palaeolithic Period, when the Aurignacian people of southern France apparantly began to steam their food over hot embers by wrapping it in wet leaves." The Paleolithic period begins somewhere around 2.5 million years ago to 10,000 BC. The Aurignacian people dated between 32,000 and 26,000 BC. Cooking as a biological trait by Wrangham R. and Conklin-Brittain N. of the Department of Anthropology, Harvard University, states that "No human foragers have been recorded as living without cooking" and suggests that it may have been obligatory for human evolution, and our biology has adapted to it. "The possibility that cooking is obligatory is supported by calculations suggesting that a diet of raw food could not supply sufficient calories for a normal hunter-gatherer lifestyle. In particular, many plant foods are too fiber-rich when raw, while most raw meat appears too tough to allow easy chewing. If cooking is indeed obligatory for humans but not for other apes, this means that human biology must have adapted to the ingestion of cooked food (i.e. food that is tender and low in fiber) in ways that no longer allow efficient processing of raw foods. Cooking has been practiced for ample time to allow the evolution of such adaptations. Digestive adaptations have not been investigated in detail but may include small teeth, small hind-guts, large small intestines, a fast gut passage rate, and possibly reduced ability to detoxify. The adoption of cooking can also be expected to have had far-reaching effects on such aspects of human biology as life-history, social behavior, and evolutionary psychology. Since dietary adaptations are central to understanding species evolution, cooking appears to have been a key feature of the environment of human evolutionary adaptedness." So it would seem that the practice of cooking has been around for so long that it might be considered human nature. But everyone is entitled to his/her own opinion. The human species has evolved so successfully that if cooking will only make our planet more overpopulated, perhaps it isn't a bad idea for some of us to stem the development a bit by going against evolutionary history and stop cooking for a few centuries. Quote:
The tropics would get awfully crowded if everyone living in cold climate areas decided to pick up and move there.
__________________ My blog: Pecuniarities ~ Creative frugal living and personal finance My CafePress Store: Mozartini | Follow me on Twitter! | |
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| | #24 | ||||||||
| Member Join Date: Jan 2008
Posts: 57
Reputation: | Lets break thing apart and look at them closely base purely on what you posted. Quote: Quote:
Is there more fruits and veggie in the world than what ever you can cook? Most people think of fruits of veggie is apple, orange, lettuce, celery or the tiny little fruits/veg section in the supermarket. Through out the year I eat over 100+ fruits and veggie. I have only met a couple of people who can match my variety throughout the year. The farmers at the market at always surprise about me asking for this and that fruit that is in season. Most of the non common fruits I get for FREE, boxes of it. The body is run by glucose and to a certain extent fructose, both simple carbs. Starches that is cooked have some of its complex carbs converted to simple carbs. Cooked starches are no longer 100% complex carbs, they are a mix of simple and complex, so all the simple carbs relative to complex carbs are 2-12 times more digestible? So what happens to the portion still complex carbs, How about 2-12 time more indigestible? Doesn't it make more sense to just eat simple carbs for that 2-12 more digestible feeling? If the protein in soy or legumes are less digestible, wouldn't it make sense to just to consume highly digestible veggie that is high in protein? E.g broccoli. Why go through all that effort just to make a couple of more thing more of this and that? The longest ever and still going nutrition study is done by T. Colin Campbell(http://www.thechinastudy.com/authors.html) says that 5-10% is more than enough to met anyone proteins needs. Quote:
what is fuel per unit of nutrition? Never heard of that. Something new to learn? Quote:
On another note. Have you been bushing walking in the wild without bringing any food and relied on nature to supply you with food? I been past fields of grain, grass, animals my mouth never waters nor do I feel excited to run up and grab that food. However all the people I ever walked with always notice this and that fruit! Quote:
Cold slows down the progress of decomposition. I don't what it means by "fresh" in America. However lets just say fresh is when you pick, then eat the food you just have picked immediately. When riped food is picked decomposition begins, so when we freeze the food the nutrient content increase? Where did the food get that EXTRA nutrient from? Not from the ground or the air like everything plant does. Every fruit farm I worked on picked their produce green. When its at the fruits shop its still a little green so they can sell it for a few more days and at a higher price. Quote:
So we have been cooking our food for 10, 000, however that very same people say we need half million years at least to evolve. How did they speed up the 400,000 years difference? How fruits does most people eat? About 2 apples or oranges and they are full! All the anthropoid Primate eats about 3-5kg of fruits a day. From that amount of fruit the calories is about 2000 to 4000, just about right for sedentary to active lifestyle. How many people actually eat that much fruit and veggie? None of the anthropoid Primates go drinking water from the river. Not if more than 50% of the food you consume is water volume. Quote:
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P.S Didn't mean to put down the english language. Last edited by NaturallyCheap; 02-15-2008 at 04:50 PM. | ||||||||
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| | #25 |
| Senior Member Join Date: Dec 2007
Posts: 510
Reputation: | Here's a question. Has anyone else tried using a solar oven? I mentioned it in passing earlier that I planned on finally doing this when summer finally hits here. Mother Earth News and a few other sites have detailed plans for these. They seem to be a bit of an inexact science for cooking times too. They seem like they would be a great way to cook those things that really need it (like lentils and meat) in the summer. |
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| | #26 |
| Senior Member Join Date: Jan 2008
Posts: 108
Reputation: | These "fact" are wrong by orders of magnitude (try: Homo sapiens has been around for ~250,000 years at best, and fire around for twice as long). It seems, pardon the pun, fruitless to engage in a serious debate on the matter of the evolution of the human alimentary system. |
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| | #27 |
| Senior Member Join Date: Jan 2008
Posts: 108
Reputation: | As an interesting factoid related to the evolution of the digestive system over relatively short periods of time, you can look at the distribution of the genes for lactose intolerance, and see that populations that domesticated herd animals within the past 10,000 years have evolved to accommodate that change in diet. It does not take "millions of years" for small but significant evolutionary changes to occur, such as the ability to efficiently digest lactose as adults. |
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| | #28 | |||
| Member Join Date: Jan 2008
Posts: 57
Reputation: | Quote:
Following your numbers 20 000 / 250 000 = 0.08. so for 0.8% for our existence we been cooking food? Is that even a success you will settle for? Quote:
it say 500,000 to 1 million! Quote:
Last edited by NaturallyCheap; 02-15-2008 at 05:48 PM. | |||
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| | #29 | ||
| Administrator Join Date: Jan 2007
Posts: 343
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Thanks for all the great links everyone. I'm learning a lot from this thread. This thread reminded me of an old Wise Bread article about why fruits and vegetables are so expensive: Quote:
Naturally Cheap, can you give us a list of the kind of fruits and vegetables you enjoy everyday? I think that would be a very interesting list! | ||
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| | #30 | |
| Senior Member Join Date: Jan 2008 Location: California
Posts: 414
Reputation: | Quote:
One is about early man in the hunter-gatherer age when people had to comb the environment for edible foods. The writers are mostly likely not talking about carrots and broccoli. They didn't have gardens of domesticated fruits and vegetables brought from all over the world; they had to go through forests, plains, brush, etc. and look for things they could eat. While they may have had some sort of fruit and vegetable-like foods, most of their choices were probably more similar to grass, tree bark and leaves, etc., and a lot of this type of plant matter would be hard to digest raw. The other article extolling the virtues of fiber-rich fruits and vegetables was written about eating in the 21st century where people have so many different kinds of food to choose from that many of us often don't eat enough fiber. That is why this article is saying fiber-rich is good. So these are 2 different situations, thousands of years apart, and therefore not contradictory when looked at in their original context. If you read her post more carefully, you'll see that she is talking about using a solar oven in the summertime, not in the dead of winter.
__________________ My blog: Pecuniarities ~ Creative frugal living and personal finance My CafePress Store: Mozartini | Follow me on Twitter! | |
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