Misterhamper skrev:Hvad skulle gøre en "afhængig" af kød på samme måde som man er "afhængig" af kaffe og nicotin?
Udover selvfølgelig, at vi rent faktisk er skabt til at spise kød. Hvordan tror du en ko, som er 100% planteæder, får det hvis den spiser meget kød - eller bare lidt kød? Eller alle andre dyr, som er planteædere? Eller hvordan en tiger får det hvis den får tonsvis af grøntsager og frugter.
Vi kan TÅLE både kød og frugt og grønt, vi er SKABT til både frugt og kød. Vi er ALT-ÆDERE, ligesom hunde, grise, chimpanzer og mange andre
Fordi at kroppen ændres ved indtagelse af giftstoffer, feks derfor at man kan se hjerne-ændringer i folk som tager hash, og igen
http://www.rawfoodexplained.com/the-phy ... -diet.htmlIntroduction
There are a number of popular myths about vegetarianism that have no scientific basis in fact. One of these myths is that man is naturally a vegetarian because our bodies resemble plant eaters, not carnivores. In fact we are omnivores, capable of either eating meat or plant foods. The following addresses the unscientific theory of man being only a plant eater.
Sandt, vi kan putte alt hvad lige fra fisk til græs i vores maver, men det betyder ikke at får det optimale udbytte fra det, og fordi vi stammer fra frugt-spisere, får vi optimalt udbytte af frugt, derefter grøntsager med lav mængde stivelse og dernæst nødder, efter det kommer alle de ting som vi begyndte at spise de seneste 2 millioner år.
Og sandt nok, vi er blevet en
smule bedre til at fordøje kød, men stadigvæk ikke nok til at det skal spises regelmæssigt, hvis overhovedet.
Confusion between Taxonomy and Diet
Much of the misinformation on the issue of man's being a natural vegetarian arises from confusion between taxonomic (in biology, the procedure of classifying organisms in established categories) and dietary characteristics.
Igen, ikke sandt, hvis fordøjelses-system x er designet til kød, så kan vi sige lige så meget vi har lyst til, men dyr med fordøjelses-system x skal spise kød.
Vi har få bare fordøjelses-system y, som er skabt til frugt.
Members of the mammalian Order Carnivora may or may not be exclusive meat eaters. Those which eat only meat are carnivores. Dietary adaptations are not limited by a simple dichotomy between herbivores (strict vegetarians) and carnivores (strict meat-eaters), but include frugivores (predominantly fruit), gramnivores (nuts, seeds, etc.), folivores (leaves), insectivores (carnivore-insects and small vertebrates), etc. Is is also important to remember that the relation between the form (anatomy/physiology) and function (behavior) is not always one to one. Individual anatomical structures can serve one or more functions and similar functions can be served by several forms.
Det er sandt at mange arter spiser en kost som ikke er optimal en gang imellem, men det er kun på grund af mangel af det optimale.
Omnivorism
The key category in the discussion of human diet is omnivores, which are defined as generalized feeders, with neither carnivore nor herbivore specializations for acquiring or processing food, and who are capable of consuming and do consume both animal protein and vegetation. They are basically *opportunistic* feeders (survive by eating what is available) with more generalized anatomical and physiological traits, especially the dentition (teeth). All the available evidence indicates that the natural human diet is omnivorous and would include meat. We are not, however, required to consume animal protein. We have a choice.
Jeg gad godt se en person spise et nedlagt dyr uden redskaber, vores tænder er simpelthen ikke stærke nok til at trænge igennem.
For et lille forsøg, prøv at bide så hårdt du kan i din arm, du vil være nød til at bide ret hårdt før det kan mærkes.
The Great Apes
There are very few frugivores amongst the mammals in general, and primates in particular. The only apes that are predominantly fruit eaters (gibbons and siamangs) are atypical for apes in many behavioral and ecological respects and eat substantial amounts of vegetation. Orangutans are similar, with no observations in the wild of eating meat.
Gorillas are more typically vegetarian, with less emphasis on fruit. Several years ago a very elegant study was done on the relationship between body size and diet in primates (and some other mammal groups). The only primates on the list with pure diets were the very small species (which are entirely insectivorous) and the largest (which specialize in vegetarian diet). However, the spectrum of dietary preferences reflect the daily food intake needs of each body size and the relative availability of food resources in a tropical forest. Our closest relatives among the apes are the chimpanzees (i.e., anatomically, behaviorally, genetically, and evolutionarily), who frequently kill and eat other mammals (including other primates).
Vi kan skide på de aber som ikke er "menneske-aber", fordi det er dem som er tættest på os.
Chimpanser, som jeg har sagt,går i nogen stammer på jagt, for at vise deres mandighed overfor hunnerne, og i nogen stammer tygger de på kødet så de kan få kød-safterne ud, hvorefter de spytter det ud, men det er kultur og ikke ernærings-behov.
Evidence of Humans as Omnivores
Archeological Record
As far back as it can be traced, clearly the archeological record indicates an omnivorous diet for humans that included meat. Our ancestry is among the hunter/gatherers from the beginning. Once domestication of food sources began, it included both animals and plants.
Her er så problemet: Spis en frugt, og du efterlader ikke noget spor, udover tænder, som har vist at indtil perioden hvor vi opfandt redskaber og bevægede os væk fra vores oprindelige områder, levede påen kost stort set udelukkende af blød frugt og vegetation.
Dræb et dyr, og du efterlader både skelet og redskaber.
Cell Types
Relative number and distribution of cell types, as well as structural specializations, are more important than overall length of the intestine to determining a typical diet. Dogs are typical carnivores, but their intestinal characteristics have more in common with omnivores. Wolves eat quite a lot of plant material.
Ja, men husk nu på at kød kun kan være i tarmen så længe, så der er en maximal tarm-længde på omkring 8 gange kropslængde, tror jeg vist det var.
Fermenting Vats
Nearly all plant eaters have fermenting vats (enlarged chambers where foods sits and microbes attack it). Ruminants like cattle and deer have forward sacs derived from remodeled esophagus and stomach. Horses, rhinos, and colobine monkeys have posterior, hindgut sacs. Humans have no such specializations.
Her snakker vi også om græss-ædere osv, som har brug for at nedbryde cellulose, som der ikke er så meget af i frugt, samt salat og andre bladede grøntsager.
Jaws
Although evidence on the structure and function of human hands and jaws, behavior, and evolutionary history also either support an omnivorous diet or fail to support strict vegetarianism, the best evidence comes from our teeth.
The short canines in humans are a functional consequence of the enlarged cranium and associated reduction of the size of the jaws. In primates, canines function as both defense weapons and visual threat devices. Interestingly, the primates with the largest canines (gorillas and gelada baboons) both have basically vegetarian diets. In archeological sites, broken human molars are most often confused with broken premolars and molars of pigs, a classic omnivore. On the other hand, some herbivores have well-developed incisors that are often mistaken for those of human teeth when found in archeological excavations.
Har egentlig ikke nogen relevans, fordi det bringer ingen pointer.
Salivary Glands
These indicate we could be omnivores. Saliva and urine data vary, depending on diet, not taxonomic group.
Vi har kulhydrat-nedbrydende enzymer i spyttet, hvilket er typisk alt-ædere og plante-ædere, MEN, vi har problemer med ekstra urin-syre, som der er meget af i kød, det problem har alt-ædere ikke.
Intestines
Intestinal absorption is a surface area, not linear problem. Dogs (which are carnivores) have intestinal specializations more characteristic of omnivores than carnivores such as cats. The relative number of crypts and cell types is a better indication of diet than simple length. We are intermediate between the two groups.
Vores tarme er omkring 11 gange kropslængde, og det er for langt til kød, for kort til græss og cellulose holdige planter, men perfekt til frugt og bløde grøntsager.
Quoted from an editorial by William Clifford Roberts, M.d., Editor-in-Chief of the American Journal of Cardiology:
"When we kill animals to eat them, they end up killing us because their flesh, which contains cholesterol and saturated fat, was never intended for human beings, who are natural herbivores."
Næsten rigtigt, vi kan bedre tåle kolesterol og mættet fedt end andre aber, men det er kun på grund af den MEGET lille fordel man havde hvis man spiste kød og bedre kunne tåle det, bare en lille smule.
Desuden er vi ikke plante-ædere, men frugt-ædere.
Quoted from "WHAT DID OUR ANCESTORS EAT?" in Nutrition Reviews, by Stanley Garn, Professor of Nutrition and Anthropology, and William Leonard, Assistant Professor of Human Biology:
"These people of Upper Pleistocene, and later those of the mesolithic, were our immediate ancestors, no longer hunters exclusively and with whole-grain products and a variable amount of roots, fruits, leafy vegetables and nuts in their diet. We must grant them a mixed diet, with animal fat providing a smaller proportion of their food energy than was probably true for the Neanderthals."
Men stadig ikke længe nok til en så brutal ændring som at gå fra frugt-æder til alt-æder.