From: "Steve Harris" <SBHarris123@ix.netcom.com> Newsgroups: sci.med.nutrition Subject: Re: What is man? Date: Fri, 27 Apr 2001 02:13:30 -0600 > Now, how about trying to grasp what I have presented? Man is by > biological standards a "frugivore. Nah. We can keep a high blood level of vitamin C with a lower dietary dose than any other primate, by far. We conserve it fantastically, with a half-life around 20 days once we reach renal threshold. None of this would be necessary for a frugivore. Instead, it appears to be an adaptation from a former frugivore which has undergone quite a bit of additional natural selection. Show me a human with very dark skin with all his excess nutritional calorie storage fat on his butt, where it can sit without giving him heatstroke, and I'll show you somebody adapted for a tropically sunny, hot climate where eating fruit all year around might be possible. Show me somebody with light skin and and a more even fat covering, not to mention good enough vitamin C conservation to make it through a winter without fresh greens, and I'll show you a human who's undergone considerable genetic adaptation to other lifestyles where fruit-eating is clearly not a year-around thing, and hasn't been for a long, long evolutionary time. In short, a hominid no longer meant genetically to eat any class of foods in particular, anymore, all the time. If you look at a human being's gut, it looks quite a lot like the gut of a pig. This is not the gut of a tree-dwelling, fruit-eating monkey. Learn from it. SBH From: "Steve Harris" <SBHarris123@ix.netcom.com> Newsgroups: sci.med.nutrition Subject: Re: More demonization of fat Date: Mon, 14 May 2001 00:54:13 -0600 "Quentin Grady" <quentin@paradise.net.nz> wrote in message news:25ruftsvtkkqbohjtegptk3rui3tjh1q8a@4ax.com... > This post not CC'd by email > On Sun, 13 May 2001 16:57:41 -0700 (PDT), daleo80@webtv.net (Dale > Omenson) wrote: > > >The ancient Romans had a diet of basically whole wheat and corn. How, do > >you suppose, did they avoid becoming overweight and developing > >diabetes??? Myth. Excavations at Roman military latrines have shown that even Romans soldiers got a lot more fruit than had been generally supposed. As for the Roman upper classes, they didn't eat like Henry VIII, but also had a much more varied diet. The Roman expression for everything from soup to nuts was "ab ovo usque ad mala" literally "from the egg to the apples." The traditional opening and closing courses of the Roman meal. Classically, SBH From: "Steve Harris" <SBHarris123@ix.netcom.com> Newsgroups: sci.med.nutrition,misc.fitness.weights Subject: Re: Humans as Omnivores (Was: vegetarian friend ate beef. -- lost headaches.) Date: Mon, 14 May 2001 16:25:13 -0600 "rawimmortal" <rawimmortal@my-deja.com> wrote in message news:vkYL6.2653$p33.59332@news1.sttls1.wa.home.com... > > "Scott K." <skurland@chicago.us.mensa.org.removethis> wrote in message > news:9dpi3n$cfn@dispatch.concentric.net... > > > > It has already been pointed out to you that it is characteristic > > > > of herbivores that they turn toes up and die if you give them a > > > > diet of meat. That's true of rabbits, and I've no doubt it's just > > > > as true of elephants. > > > > > > In case you haven't noticed, we're not herbivores. We're frugivores. > > > > Name ten frugivores. Can any of them except humans survive on a pure > > animal diet? > > There have been cultures in which the preferred method of executing a > prisoner by the agonizing means possible, was to feed them nothing but > flesh. They died horribly. > > Name even 10 humans who can survive for long on a diet of only animal > flesh. > > Habib The Eskimos have been mentioned to you. Their traditional diet is as close to being carnivorous as that of most carnivores. Of course, it should be noted that even carnivores usually end up sometimes eating whole animals, or at least the gastric contents of herbivores. The fact that my cat sometimes grazes on my lawn does not mean it's not a carnivore. Can a human live on nothing but what a wolf or a lion eats? You bet. As long as you like. Can a rabbit do that? Nope. Feed a rabbit nothing but meat and it will be dead in 2 weeks. They tried that for the cholesterol studies, and didn't get far because the animals didn't live to get atherosclerosis. SBH From: "Steve Harris" <sbharris@ix.netcom.com> Newsgroups: sci.med.nutrition Subject: Re: vegetarian friend ate beef. -- lost headaches. Date: Wed, 16 May 2001 15:37:28 -0700 DRCEEPHD wrote in message <20010516155346.00574.00000038@ng-mi1.aol.com>... >Humans, as frugivores, have a limited capacity to digest animals. We >cannot digest the hide, the hair, the collagen, or the ligaments, but we >can digest the muscle tissue. Wrong. We can digest all but the hair. Which most carnivores can't either. >Over consumption of the muscle mass requires that the bacteria digest and >consume the mass for us to avoid impaction and blockage. Our longer >digestive tract and digestive times, allows for the bacteria to act upon >the non-digestible portion producing toxins, poisons, gas, and odor to >which the human is then exposed. Minerals must also be released from the >bones for the human to counteract the acidity of meat and allow the >excretion as calcium urate. More nonsense. Protein digestion creates acid, but any protein (including plant protein) does that. It needs to be neutralized by base in the diet. >Lastly, no farmer would spread the feces of carnivores on his garden. The >feces are toxic to the plants. Only the dose makes the poison. Sure, carnivore waste is too high in nitrogen to use full strength, but there's nothing toxic about it, if diluted in other compost. If you've ever examined a dog turd on your lawn you'll see that the lawn immediately under it is dead, but in a ring around it the grass grows greener and more lush. The same happens with any chemical fertilizer-- use too much and it's bad. Use just the right amount and it's good. Sort of like vitamins, don't you know. SBH From: "Steve Harris" <sbharris@ix.netcom.com> Newsgroups: sci.med.nutrition,misc.fitness.weights Subject: Re: Humans as Omnivores (Was: vegetarian friend ate beef. -- lost headaches.) Date: Wed, 16 May 2001 15:53:53 -0700 rawimmortal wrote in message <47CM6.14667$p33.253834@news1.sttls1.wa.home.com>... > >"Dry Ice" <nomail@nomail.com> wrote in message >news:3b02acfd_3@news4.newsfeeds.com... > >> So, perspiration is irrelevant to diet when >> comparing meat eaters and grass eaters, but >> not when comparing meat eaters and fruit eaters. > >I never said or implied that. I said and implied that it was meat eaters >and frugivores I referred to, rather than grass eaters, because I have >less knowledge about perspiration in grass eaters than I do about meat >eaters and fruit eaters. All right, so what is it you think you know about perspiration in meat and fruit eaters? So far as I know, no other animal perspires in the way that humans do. We use our eccrine glands for thermal control, and that's unique. Many mammals have eccrine glands on their paws, and I assume they use them to keep from having dry feet and loosing good grip. Monkeys included. Monkeys also have eccrine glands under the hair all over their bodies, but they don't use them for thermal control. Sweating for thermal control is hard for a non running animal with hair, since there's not enough convection to make it work. Horses manage because they run, but they use apocrine glands for it, like the ones under your arms. They're great perspirers, but they don't do it at ALL like we do it. What you think any of this has to do with diet is beyond me. It looks to me like you've been reading creationist literature or some fool thing. SB From: "Steve Harris" <sbharris@ix.netcom.com> Newsgroups: sci.med.nutrition Subject: Re: Humans as Omnivores Date: Sun, 20 May 2001 15:32:03 -0700 laurie wrote in message ... > >"Dry Ice" <nomail@nomail.com> wrote in message >news:3afe34d2_3@news4.newsfeeds.com... >> ===== Humans as Omnivores ===== >> There is overwhelming archeological evidence, going >> back before Neanderthal, that humans were omnivores. >> Even a superficial examination of the literature of >> cave findings reveals this. > Getting beyond the 'superficial', archeological "evidence" exists ONLY >AFTER culture had started being developed. > No evidence of human existence exists -pre-culture-, just as no evidence >of chimps existence 10,000 years ago survives to this day. It is only >through TOOLS that enough lingering damage to the ecosystem exists to >this day to document human existence. The 'evidence' you refer to is >most likely ancient fire-pits and burnt, and/or tool-scarred bones. Most >important to this discussion is the fact that tool/fire use is a -very >recent- human endeavor, existing only in a very small percentage of our >evolutionary past, thus any dietary evidence post-tool is totally >irrelevant to understanding the natural human diet. This is a simple >concept that anyone should be able to understand. Some of those campfire remains are hundreds of thousands of years old. That's plenty of time for evolution to have adapted to a very great difference in diet. That's a concept that anyone should be able to understand, too. One of the things that put Darwin onto the case of the mechanism of evolution was nothing that his island finches weren't all eating the same diet, but had all had a common land ancestor quite recently. How fast can this happen? In Hawaii there are a number of species of banana moth that occur nowhere else in the world. But bananas don't hop from island to island by themselves like coconuts, and they aren't native to Hawaii. They were brought by Polynesians less than 2000 years ago. The moths evolved SINCE then to eat bananas. Now, this happens more quickly with insects than it does mammals, but to give you an idea of what is possible, consider the brown bear (grizzly, Kodiac, Alaskan Brown, etc) and the polar bear. Formally these are two different species, and don't interbreed in the wild. Brown bears are omnivores who dig in the earth and in many places are largely vegetarian. Polar bears live on the ice, and are pure carnivores. But these are basically different versions of the same animal, diverging through evolution in less than a million years. They can still interbreed in zoos, and the offspring are fertile. The polar bear is just an extremely ice- and water-adapted brown bear. Human beings have used fire for a large fraction of that kind of time, and we've had plenty of pressure and plenty of evolutionary time to have made digestive adaptations as extensive as these two bears. From: "Steve Harris" <sbharris@ix.netcom.com> Newsgroups: sci.med.nutrition Subject: Re: Humans as Omnivores Date: Tue, 29 May 2001 16:54:08 -0700 laurie wrote in message ... > Further, what would be the mechanism whereby dozens of metabolic >pathways could magically change overnight in a highly orchestrated way to >allow 'adaptation' to a _radically_ different diet? And how many >generations would that take? I maintain there are none, and challenge >anyone to elucidate them in quantitative and qualitative detail. Look, none of us are going to type in a textbook of freshman evolutionary biology for you. There are plenty of them out there, and they mostly deal with things like lizards and thrushes that have radiated to islands as isolated populations and soon adapted to radically different diets. This is COMMON in biology, not rare. It can happen easily in 10,000 generations, and can even happen in 1000. I mentioned the polar bear T. maritimus and the brown bear U. arctos. They are separate species which do not interbreed in the wild, but will interbreed in zoos, and have fertile offspring. Basically they are no different from each other than various races of humans or dogs are from each other. They are thought to have diverged from each other less than a million years ago, far less time than humans have been chipping rocks to help them eat meat. BUT the brown bear is basically a vegetarian; you could call it an omnivore if you wanted to push things (and this depends a lot on where the bear lives, as inland bears are more herbivorous than coastal ones). The polar bear, however, is a carnivore, period. Yet the two bears have, needless to say, essentially the same dental structure. You must understand that your idea that you can tell what a creature is "naturally" supposed to be eating, is blown out of the water here by a single example. Those are the bear facts <g>. That's the end of your argument, unless you want to dispute some of these specific bear facts with me. > IF the human digestive system 'adapted' to a flesh-oriented diet, then >WHY did NOT the rest of the body also 'adapt'? Answer the question for the polar bear, or else quit asking it. >Why weren't the physical >equipment necessary to catch animals also co-evolved with this alleged >digestive 'adaptation'; that is, why did not the human also become >fleet-of-foot enough to catch animals, why did we not develop sharp, pointy >things to catch and tear animal flesh -- where are the sharp teeth and >claws? We didn't need them. What we needed was equipment to run down prey and throw a stone or spear accurately. Which we have. Have you ever seen a chimp try to catch or throw a ball? It's pathetic, far worse than any girl's softball team. Have you seen a chimp walk on its hind legs? Can you imagine one waddling after a porcupine with a spear? Forget it. We ARE adapted for hunting and killing game. You just have to notice. What... you think we can run marathons, and are better distance runners than any other animals save the canids, so that we can stalk and run down tired radishes and carrots? We humans are full of equipment that is of no use to a frugivore whatsoever, unless you happen to know of any long-winded lemon trees. SBH From: "Steve Harris" <sbharris@ix.netcom.com> Newsgroups: sci.med.nutrition,sci.med Subject: Re: Humans as Omnivores Date: Tue, 29 May 2001 22:44:00 -0700 DRCEEPHD wrote in message <20010529210247.11078.00001404@ng-mc1.aol.com>... >>Subject: Re: Humans as Omnivores >>From: "Steve Harris" sbharris@ix.netcom.com >>Date: 5/29/01 6:54 PM Central Daylight Time >>Message-id: <9f1cs7$knq$1@nntp9.atl.mindspring.net> > >>We ARE adapted for hunting and killing game. You just have to notice. >> >>What... you think we can run marathons, and are better distance runners >>than any other animals save the canids, so that we can stalk and run >>down tired radishes and carrots? We humans are full of equipment that is >>of no use to a frugivore whatsoever, unless you happen to know of any >>long-winded lemon trees. >> >> >>SBH >> >Very funny. I enjoy the comparison. > >However, after we run down the prey, how do we kill the prey and tear >through the hide? Do you relish the thought of attacking a cow to suck >her uddrers for the milk? Do you mentally relish the thought of laying >in a pile of dead herbavore like the cow to feast on her entrials ( your >salad) before eating the muscle meat? And where is the protective Bull >in all of this? ( I have been chased many times out of the pasture by >the ever present bull.) Answer: No, why should I? Suppose you ask an otter if it relishes getting a mouth full of sea urchin spines, or an Alaskan beaver if it relishes spending the winter out in the bush freezing its tail off, without any protection from the wolverines or the snow. If these animals would talk, they'd tell you that you were nuts. The otter would reply that breaking open urchins is what rocks are for, and that you can't really look at his face and paws and tell what he's "supposed" to be eating, because he ALSO uses tools. The beaver will tell you the same-- that he constructs dams, moats, and lodges, and that you can't tell how he spends the winter just by looking at his coat. He's not adapted to living out in the open in an arctic winter, but he does it anyway by using his brain, his paws, and his teeth to construct protection that is better than that afforded by his hide alone. Humans aren't any different. We use tools to get though hides in the same way otters use stones to get through shells (originally, in fact WE used chipped stones for this). You can't tell what we're "supposed to do" entirely by looking at us, although you can guess some things. We're adapted clearly for running and for throwing, of course. Children, especially male children, start running and throwing things at moving objects as soon as they can, compulsively. They're instinctively training to do something, and it's not training to bring down wild rutabagas. Moreover, we're not adapted for the kind of climate in which fruit is common. Do we look like chimpanzees? No, strangely, we don't. Humans have lost most of their hair and we sweat more effectively than any other animal, save the horse. We are adapted not only for running, but running on a hot savanna, like the zebra. But we don't eat grass. We're creatures of the savanna but we weren't grazing out there, and we certainly weren't picking peaches or bananas out there. What are we eating out there? If you watch your boys play, you can figure out exactly what we ate and did out there. Games of throwing and running are in your DNA, and so is your ability to run and throw on a hot, grassy plain. Watch TV and tell me the next time you see a group of men fascinated by a contest to see who can shinny up a tree and reach the last and highest plum. Does that sound like kind of game all humans are fascinated by? No? Okay, what kinds of sports do fascinate humans in all cultures? Think. Hint: fruitpicking-like activities don't rank. Not with the Irish any more than the Mayans or the Huns. That isn't who we are. Humans have fewer instincts than other animals and more of our programming is cultural. But aside from our taste in sports, we do have certain universal tastes. One of them suggests our long use of fire. We eat raw meat from steak tartar to sushi, but we often prefer it cooked. We've been using fire since our brains were 75% of their present size, when we were called Homo erectus and from the neck upward, looked considerably more gorilla-like than Fred Flintstone (though from the neck down we looked pretty much as we do today). All known human cultures have used fire into antiquity. We are fascinated by fire. Our children are fascinated by fire. These things cause infinitely many fire accidents (why are children driven to play with matches and not, say, spiders or snakes? Spiders and snakes are MUCH safer). And we have a taste for fire's products. We like char and browning and toasting and glazing and caramelizing and barbecuing, and we spend a lot of money getting it, as well as the taste of smoke (you can buy liquid smokehouse flavoring...!) Some of our worst addictions even involve inhaling smoke, and we can't figure out why delivering the drug in other forms doesn't work as well to break it. Even inhaling cold nicotine vapor isn't the same, as a manufacturer of nicotine inhaler sticks found out some years ago. Smoke itself is mildly addictive. It is a sweet smell unto the Lord, says Leviticus about smoke and burned meat. And to your genes, also. The only other animal we know of that seems to prefer the taste of cooked food is the dog, and dogs have probably been sharing our fires as long as we've been making them. In short, I'm sorry to be bringing you more bad news about those fairy tales that you believe. However, we are not the descendents of women who got weak in the knees at the sight of the most agile orange picker, or men who enjoyed the favors of that hungry woman and her baby after finding them a nice romantic raw turnip. That just isn't the way our species works. Smoke Gets In Your Eyes, as the song goes. We are anatomically built to be hot-climate corsairial tool-using hunters, not tree-climbing fruit-eaters. We are tool-using fire-using animals, and though-out the history of our species, the main thing we used fire and tools FOR, is the procurement and preparation of meat. SBH From: "Steve Harris" <sbharris@ix.netcom.com> Newsgroups: sci.med.nutrition Subject: Re: Humans as Omnivores Date: Wed, 30 May 2001 01:18:40 -0700 big benz wrote in message <3B149508.70B65664@benz.car>... >Steve Harris wrote: >> >> BUT the brown bear is basically a vegetarian; you could call it an >> omnivore if you wanted to push things (and this depends a lot on where >> the bear lives, as inland bears are more herbivorous than coastal >> ones). The polar bear, however, is a carnivore, period. Yet the two >> bears have, needless to say, essentially the same dental structure. >> You must understand that your idea that you can tell what a creature is >> "naturally" supposed to be eating, is blown out of the water here by a >> single example. Those are the bear facts <g>. That's the end of your >> argument, unless you want to dispute some of these specific bear facts >> with me. >> >Bears are opportunistic eaters, that's what tends to dictate their diets. >so, brown bears are omniverous in that they'll eat what make the most >sense for them to eat. bears aren't stupid, year a bear could run down >prey, kill it and eat. but heck, if it can eat berries, that's a easy >meal, full of sugars, and they don't have to expend a lot of energy to >get it. That doesn't explain why polar bears don't go South where they can feast on berries which don't try to get away. The truth is that bears are NOT complete diet opportunists. Polar bears like to stay north of brown bears and that means they like to eat what there is to eat there. >polar bears are carnivorous because there's not a whole lot of vegetation >growing in the areas that they frequent. Begging the question. There's no fence keeping them up there. >however, polar bears that >spend summers in the hudson bay area of canada near areas of human >habitation will raid the garbage dumps and won't be real choosy about >what they eat. How do you know? The fact that a bear is raiding a dump doesn't necessarily mean it's eating anything it can find there. Anyway, we're still not focusing on the point. We have two bears with very different diets due to where they live. They have the same teeth because they are closely related. Is somebody going to claim that one or the other bear is somehow flying in the face of god and nature by eating what it actually eats? How come humans seems to catch this kind of argument from nutcases, but animals never do? From: "Steve Harris" <sbharris@ix.netcom.com> Newsgroups: sci.med.nutrition Subject: Re: Humans as Omnivores Date: Wed, 30 May 2001 02:06:01 -0700 laurie wrote in message ... > The human species is the sickest on the planet, morbid obesity kills >300,000 people/year in the US; cancer, heart attacks, and strokes are >killing younger and younger people as time goes on. There is NO such >rampant "degenerative disease" that occurs in the domain of the natural >animal. COMMENT: Let's just start with this statement. Any biologist will tell you that any wild animal population is full of parasites and degenerative diseases, and the only thing that limits this is the fact that animals have no hospitals or nursing homes or retirement plans, and die pretty quickly if they get too ill. But that's not to say that they don't have all kinds of maladies. I've appended five papers below on just arthritis, but there are many more for all kinds of other problems. Whereever did you get the idea otherwise? Do they teach this nonsense is some kind of Seventh-Day Adventist school for people who don't know anything about biology at all? Why do you think you can get away with just blathering on about such stuff? And where do you get the idea that humans die prematurely? How long do you think a mammal of our size should last? Mice and elephants get about a billion heart-beats in a lifetime. That's the mammalian average. Try thinking for a while about how much metabolic lifetime a human gets. 1: Equine Vet J 1999 Jan;31(1):73-81 Naturally occurring osteoarthritis in the metacarpophalangeal joints of wild horses. Cantley CE, Firth EC, Delahunt JW, Pfeiffer DU, Thompson KG. Department of Veterinary Clinical Sciences, Massey University, Palmerston North, New Zealand. This study identified changes consistent with osteoarthritis; articular cartilage damage, subchondral bone sclerosis and marginal osteophytes, in the metacarpophalangeal joints of wild New Zealand horses. The articular cartilage lesions were identified by Indian ink staining techniques and histology. The lesions occurred on the proximodorsal aspect of the first phalanx (P1) and were more severe on the medial compared to the lateral eminence of the bone, and their severity increased with age. The bone mineral density of the subchondral bone underlying the cartilage lesions, assessed using conventional radiography and dual energy absorptiometry, also increased with age and with severity of the overlying cartilage lesion. Subjective assessment of cabinet radiographs revealed that the subchondral bone sclerosis was greater in horses with severe articular cartilage damage. Ossicles, with a distinct trabecular bone pattern, were identified at the proximo-dorsal margin of P1 in 8 specimens from 5 horses from the older age groups (greater than age 5 years). The results of this study demonstrate age-related changes consistent with osteoarthritis in the metacarpophalangeal joints of wild horses. There appears to be a significant relationship between subchondral bone sclerosis and overlying cartilage degeneration in the proximodorsal aspect of P1. We have identified an age-related osteoarthritic process naturally present in horses; and postulate that the stresses of racing and training may accelerate this ageing process. PMID: 9952333 [PubMed - indexed for MEDLINE] 2: J Wildl Dis 1997 Apr;33(2):211-9 A case of spondylosis deformans in the defleshed skeleton of a wild coyote and its significance to osteopathologic interpretation. Duckler GL. Department of Biology, University of California, Los Angeles 90024, USA. The skeleton of a wild coyote (Canis latrans), collected in Alturas, California (USA), in 1940 and reported to have died of a blowfly infection, was analyzed. The axial components, primarily a series of fused and deformed vertebrae, had classic osteological indications of spondylosis deformans, a trauma-induced disorder. Severe crippling due to a crushing-type strain was identified as the primary pathological condition to which the coyote succumbed, with death hastened by vertebral degeneration and the complicating infection. PMID: 9131550 [PubMed - indexed for MEDLINE] 3: Aust Vet J 1994 May;71(5):143-5 Polyarthritis in wild mice (Mus musculus) caused by Streptobacillus moniliformis. Taylor JD, Stephens CP, Duncan RG, Singleton GR. Toowoomba Veterinary Laboratory, Queensland Department of Primary Industries. Mice trapped on farms in south-eastern Queensland had chronic abscessating osteoarthritides mainly involving the carpi and tarsi. Pleomorphic bacteria were shown by silver staining to be plentiful within lesions. Streptobacillus moniliformis was isolated from the joints, and streptobacillary polyarthritis was diagnosed. Other lesions observed included subcutaneous and hepatic abscesses. PMID: 8067948 [PubMed - indexed for MEDLINE] 4: Aust Vet J 1993 Oct;70(10):394-5 Secondary degenerative arthropathy (osteoarthrosis) of the hip joints in ageing, free-living koalas. Canfield PJ, Spencer AJ. Department of Veterinary Pathology, University of Sydney, New South Wales. PMID: 8257324 [PubMed - indexed for MEDLINE] 5: Am J Phys Anthropol 1990 Mar;81(3):399-412 Skeletal and dental pathology of free-ranging mountain gorillas. Lovell NC. Department of Anthropology, Cornell University, Ithaca, New York 14853. The mountain gorillas of the central Virungas have been the subject of field study for the last 30 years; however, our understanding of morbidity and mortality in these apes is limited. This paper describes pathological conditions of the skeleton and dentition of these animals and evaluates lesions in relation to behavioral and environmental data. The skeletal remains of 31 mountain gorillas from the Karisoke Research Center were examined for enamel wear, carious lesions, abscesses, periodontal disease, antemortem tooth loss, trauma, inflammation, arthritis, neoplasia, and developmental anomalies. Two infants, three juveniles, 13 adult males, and 13 adult females form the sample. Enamel wear in the permanent posterior dentition is moderate. Six periapical abscesses were seen; three are associated with antemortem tooth breakage. No carious lesions were observed. Pronounced calculus buildup and alveolar resorption are the most notable pathological conditions of the dentition and affect all adult animals. The primary affliction of the skeleton is arthritis, which affects 14 animals. Vertebral degenerative disease predominates, but there is also temporomandibular joint involvement. Fractures occur at seven locations in the postcranium. In addition, there are five cranial injuries, including a fractured sagittal crest, and a penetrating wound to the vault, which is believed to result from a bite. Also thought to result from a bite is a case of cranial osteomyelitis. The only other inflammatory responses are two cases of idiopathic periostitis and one idiopathic lytic lesion. Button osteomas affect two animals and are the only neoplastic conditions observed. Two animals are afflicted by developmental abnormalities: one animal by idiopathic vertebral fusion and the other by spinal scoliosis. PMID: 2327480 [PubMed - indexed for MEDLINE] From: "Steve Harris" <sbharris@ix.netcom.com> Newsgroups: sci.med.nutrition Subject: Re: Humans as Omnivores Date: Wed, 30 May 2001 03:18:32 -0700 >laurie wrote in message ... >> >> >> The human species is the sickest on the planet, morbid obesity kills >>300,000 people/year in the US; cancer, heart attacks, and strokes are >>killing younger and younger people as time goes on. There is NO such >>rampant "degenerative disease" that occurs in the domain of the natural >>animal. How much of this do you want? You mention cancer and stroke. What's your idea of "degenerative disease"? Do you think wild animals don't get cancer? Don't get sick? Cesk Patol 1996 May;32(2):78-83 [Tumors in wildlife]. [Article in Czech] Karpenko A, Bukovjan K. Oddeleni patologie SZZ, Benesov u Prahy. Wild animal tumours have not been much studied yet. Authors found six mostly benign cases in Czech Republic in checking hunts between the years 1988 and 1993: Mature differentiated ovarian teratoma and apocrine skin adenoma in field hare, intraductal mammary papillomatosis in a roe, complex odontoma and pleomorphic mammary carcinoma (single malignancy in the group) in fox. A soft tissue tumour in a fallow-buck's neck could not be histogenetically classified. A high structural equivalence of animal and human tumours allows using ICD-O classification as a whole. PMID: 9560906 [PubMed - indexed for MEDLINE] J Vet Med Sci 1997 Aug;59(8):703-6 Spontaneous gastric carcinoid tumors in the striped field mouse (Apodemus agrarius). Oh SW, Chae C, Jang D. Department of Veterinary Pathology, College of Veterinary Medicine, Seoul National University, Suwon, Kyounggi-Do, Republic of Korea. Gastric carcinoid tumors were found in seven of 135 striped field mice (Apodemus agrarius) by routine histopathologic examination. All these carcinoids occurred in mature striped field mice aged 72-100 weeks. Six animals were females and only one was male. Only two of seven tumors were detectable by gross examination. Grossly, tumors were located in the fundus of the glandular stomach. All seven tumors were microscopically single in the stomach and two mice exhibited extragastric metastasis. Tumors from all the mice were characterized by densely packed sheets of round to polygonal cells, subdivided into packets by a fine fibrovascular stroma. The cytoplasm of all tumor cells from all the mice contained argyrophil granules when stained by Grimelius and Sevier-Munger silver procedures. All seven mice with gastric carcinoids exhibited positive immunoreactivity to neuron specific enolase. Psammoma bodies, concentrically laminated microcalcification, were characteristic findings in gastric carcinoids from five mice. There were also a concomitant and independent hepatocellular adenoma in one case and hepatocellular carcinoma in two cases. The present cases provide the first description of spontaneous gastric carcinoid tumors in the striped field mice. PMID: 9300368 [PubMed - indexed for MEDLINE] Leukemia 1997 Apr;11 Suppl 3:170-1 Plasmacytoid leukemia of chinook salmon. Kent ML, Eaton WD, Casey JW. Department of Fisheries and Oceans, Pacific Biological Station, Nanaimo, B.C., Canada. Plasmacytoid leukemia is a common disease of seawater pen-reared chinook salmon (Oncorhynchus tshawytscha) in British Columbia, Canada, but has also been detected in wild salmon, in freshwater-reared salmon in United States, and in salmon from netpens in Chile. The disease can be transmitted under laboratory conditions, and is associated with a retrovirus, the salmon leukemia virus. However, the proliferating plasmablasts are often infected with the microsporean Enterocytozoon salmonis, which may be an important co-factor in the disease. PMID: 9209333 [PubMed - indexed for MEDLINE] Pathol Int 1996 Dec;46(12):919-32 Mouse mammary tumor virus and mammary tumorigenesis in wild mice. Imai S. Nara Prefectural Institute of Public Health, Japan. The current knowledge of the distribution of the mouse mammary tumor virus (MMTV) proviral genomes and the mechanism of mammary tumorigenesis by MMTV in mice, with the main emphasis on Asian feral mice, is reviewed. The relevant earlier discoveries on the mode of MMTV transmission are summarized to provide an outline of the biology of MMTV. Finally, the viral etiology of human breast cancer will be discussed. Publication Types: Review Review, academic PMID: 9110343 [PubMed - indexed for MEDLINE] Adv Neurol 1991;56:473-9 Retroviral leukemia and lower motor neuron disease in wild mice: natural history, pathogenesis, and genetic resistance. Gardner MB. Department of Pathology, School of Medicine, University of California, Davis 95616. Publication Types: Review Review, tutorial PMID: 1649545 [PubMed - indexed for MEDLINE] J Wildl Dis 1985 Oct;21(4):386-90 Diseases diagnosed in wild turkeys (Meleagris gallopavo) of the southeastern United States. Davidson WR, Nettles VF, Couvillion CE, Howerth EW. Diagnostic findings are presented on 139 sick or dead wild turkeys examined during the period 1972 through 1984. Turkeys originated from eight southeastern states (Alabama, Arkansas, Florida, Georgia, South Carolina, Tennessee, Virginia, West Virginia) and included 31 turkeys categorized as capture-related mortalities and 108 turkeys categorized as natural mortalities. Frequent diagnoses (greater than or equal to 10% of case accessions) in the natural mortality group were trauma, avian pox, and histomoniasis. Less frequent diagnoses (less than or equal to 4% of case accessions) included malnutrition/environmental stress syndrome, coligranuloma-like condition, crop impaction, bumblefoot, organophosphate toxicosis, infectious sinusitis, a lympho-proliferative disease, salmonellosis, aspergillosis, toxoplasmosis, crop trichomoniasis, and melorheostosis. PMID: 4078973 [PubMed - indexed for MEDLINE] Acta Vet Scand 1985;26(1):61-71 Leukaemic neoplasia in free-living mammals in Denmark. Elvestad K, Henriques UV. PMID: 3839967 [PubMed - indexed for MEDLINE] Int J Cancer 1981 Aug 15;28(2):241-7 Natural killer cell activity in a population of leukemia-prone wild mice (Mus musculus). Scott JL, Pal BK, Rasheed S, Gardner MB. Natural cell-mediated cytotoxicity against YAC-I targets was measured in splenocytes from leukemia-prone wild mice trapped near Lake Casitas (LC) in southern California. Cytotoxicity was mediated by cells that were non-adherent to nylon wool, non-phagocytic and resistant to thy-1.2 antiserum plus complement. Natural MuLV viremia in LC mice did not impair splenic cytotoxicity against TAC-I target cells, Cells infected with amphotropic and ecotropic MuLV of wild mouse origin were not appreciably lysed by LC splenic effectors. Although variable levels of cytotoxicity were detected against TAC-1 by normal spleen cells, consistently low levels of cytotoxicity against allogenic LC lymphoma, sarcoma and carcinoma targets were found using the same splenocytes. These results indicate that LC mice possess splenocytes with the characteristics of natural killer (NK) cells as defined in inbred mice. The resistance of LC-derived targets to lysis by LC NK cells suggests that NK cells may not be involved in natural tumor immunosurveillance or that the development of spontaneous tumors may involve escape from NK-mediated effector mechanisms. PMID: 6274813 [PubMed - indexed for MEDLINE] Vet Pathol 1977 Nov;14(6):539-46 Gynecologic pathology in the rhesus monkey (Macaca mulatta). II. Findings in laboratory and free-ranging monkeys. DiGiacomo RF. The most prevalent findings in reproductive tracts of 38 laboratory and 17 free-ranging Rhesus female monkeys were vaginitis, cervicitis, metritis, pelvic endometriosis and uterine adenomyosis. Several monkeys had cervical dysplasia and one had a serous cystadenoma. The findings in the two groups were similar although prevalence for several diseases differed. There was a significant relationship between the occurrence of vaginitis, metritis, adenomyosis and endometriosis and gravidity, time since last pregnancy, number of matings, hysterotomies, reproductive ability and reproductive status. PMID: 412291 [PubMed - indexed for MEDLINE] J Wildl Dis 1999 Oct;35(4):804-7 Relating tumor score to hematology in green turtles with fibropapillomatosis in Hawaii. Work TM, Balazs GH. U.S. Geological Survey, Biological Resource Division, National Wildlife Health Center, Honolulu Field Station, Hawaii 96850, USA. thierry_work@usgs.gov The relationship between hematologic status and severity of tumor affliction in green turtles (Chelonia mydas) with fibropapillomatosis (FP) was examined. During 1 wk periods in July 1997 and July 1998, we bled 108 free-ranging green turtles from Pala'au (Molokai, Hawaii, USA) where FP is endemic. Blood was analyzed for hematocrit, estimated total solids, total white blood cell (WBC) count and differential WBC count. Each turtle was assigned a subjective tumor score ranging from 0 (no visible external tumors) to 3 (heavily tumored) that indicated the severity of FP. There was a progressive increase in monocytes and a decrease in all other hematologic parameters except heterophils and total numbers of white blood cells as tumor score increased. These data indicate that tumor score can relate to physiologic status of green turtles afflicted with FP, and that tumor score is a useful field monitor of severity of FP in this species. PMID: 10574546 [PubMed - indexed for MEDLINE] J Wildl Dis 1999 Oct;35(4):753-62 Descriptive epidemiology of roe deer mortality in Sweden. Aguirre AA, Brojer C, Morner T. Department of Wildlife, The National Veterinary Institute, Uppsala, Sweden. aguirre@wpti.org A retrospective epidemiologic study was conducted to examine causes of mortality of 985 wild roe deer (Capreolus capreolus) submitted to the National Veterinary Institute (SVA; Uppsala, Sweden) from January 1986 to December 1995. Age, sex, body condition, and geographic distribution as related to disease conditions are reported herein. The most common causes of mortality in roe deer were trauma (19%), winter starvation (18%), gastritis/enteritis (15%), bacterial infections (11%), parasitic infection (11%), systemic diseases (11%), neoplasia (2%), congenital disorders (1%), and miscellaneous causes (6%). Cause of death was not determined in 6% of the cases. The distribution of causes of death reported in this study differ from previous works in Sweden in that infectious and parasitic diseases were more common than winter starvation. The pathologic findings in studies like this do not necessarily represent what is occurring in the natural environment, but they do provide a good indication of distribution of diseases over time as well as age and sex structure in relation to disease conditions. Further research and more detailed studies are in progress to better understand specific mortality factors as well as etiologies of certain described diseases in roe deer in Sweden. PMID: 10574535 [PubMed - indexed for MEDLINE] J Zoo Wildl Med 1999 Mar;30(1):165-9 Herpesvirus-associated papillomas in koi carp (Cyprinus carpio). Calle PP, McNamara T, Kress Y. Wildlife Health Sciences, Wildlife Conservation Society, Bronx, New York 10460-1099, USA. From January through November 1994, 32% (7/22) of koi carp (Cyprinus carpio) maintained in indoor aquariums developed proliferative cutaneous lesions that consisted of single to multiple 2-10-mm whitish to pink fleshy masses usually associated with fin rays. Although scaleless koi were more commonly affected (3/6) than were normally scaled koi (4/16), the difference in incidence rates was not significant (chi2 text, P > 0.05). Lesions typically resolved spontaneously in 1-3 wk, occasionally persisted for >3 mo, and recurred in several fish after 2-5 mo. Fish were otherwise asymptomatic. Wet mount preparations from lesions were densely cellular and consisted of hyperplastic epidermal cells of normal morphology without parasites or inflammatory cells. Histologically, biopsies were consistent with papillomas and were characterized by a marked benign epidermal hyperplasia without inclusion bodies or inflammatory infiltrate. Transmission electron microscopic examination revealed intranuclear and intracytoplasmic herpesvirus virions. Virus isolation attempts were unsuccessful. PMID: 10367660 [PubMed - indexed for MEDLINE] J Wildl Dis 1999 Apr;35(2):392-4 Adenocarcinoma of the mammary gland in a red fox from Austria. Janovsky M, Steineck T. Research Institute of Wildlife Ecology, University of Veterinary Medicine, Vienna, Austria. A mammary gland adenocarcinoma was diagnosed in an adult red fox (Vulpes vulpes) which was shot in Austria in August 1995. Metastases were found in the kidneys and liver. This is the first reported case of an adenocarcinoma in a fox, and lack of mammary gland carcinoma in this species may be age related. PMID: 10231770 [PubMed - indexed for MEDLINE] From: "Steve Harris" <SBHarris123@ix.netcom.com> Newsgroups: alt.food.vegan,sci.med.nutrition Subject: Re: frugivorous fruits! (Re: excessive dietary protein) Date: Wed, 6 Jun 2001 15:36:36 -0600 "Steve_C" <kenaz@hotmail.com> wrote in message news:3B1E4585.B023DAF1@hotmail.com... > Just exactly who here has suggested living on an all fruit diet? What > you are doing is similar to posting to, for example, an egg cooking > newsgroup and suggesting that living on eggs alone is dangerous for your > health. Fruitarians eat seeds, grains and nuts as well as fruit. They eat grains?? That's weird. Grains (a product of active agriculture) are a lot more recent in the diet of humans than meat is. If you eat grains, you're going to have to give up these evolutionary arguments right from the start. From: "Steve Harris" <sbharris@ix.netcom.com> Newsgroups: sci.med.nutrition,sci.med Subject: Re: Grain & the pyramid Date: Wed, 27 Jun 2001 11:41:52 -0700 walt wrote in message ... >Thanks to all who replied here. > >I understand the thesis that the pyramid was designed to increase profits >in agro-business. Well, how stupid can that idea be? After decades of whining that the four food groups were invented to increase agrobiz profits by going away from plants, NOW we have another group of paranoid people complaining that more plants are being pushed in the USDA pyramid, in order to do the same? Hello? Have we not had Diet-For-A-Small-Planet people pointing out for years that vegetarian diets are more efficient because they are lower on a food chain that loses efficiency with every step? The most efficient and least expensive diet is one which has only the meat from retired milk-goats and milk-cows who have spent a lifetime converting the fraction of the agricultural output which really is unfit for human use, but which still contains theoretically usable calories. (You can feed a cow sawdust or cornstalk silage and turn these calories partly into milk). But retired milk animals and a chicken or two won't give you a lot of meat, and the result doesn't look a thing like the USDA pyramid. It looks a cross between the Masai diet where they live on milk and blood, and the diet of some incredibly poor New Guinea tribe where they eat sweet potato most of the time and have a meat feast a couple of times a year. We're talking rather a diet containing mostly potatoes and goat milk, just like the poor Irish, and for the same reason. Max profit in Ag business happens where all humans eat nothing but meat, all the time. No plants, no dairy products. Just meat, and as high on the food chain as possible. Veal. SBH P.S. If you have limited sunlight and land resources, you get a pretty vegetarian diet if you want to survive. I wanted to call the Biosphere II book "Diet For A Really Really REALLY Small Planet," but Walford didn't like it. From: Steve Harris <sbharris@ix.netcom.com> Newsgroups: sci.med,sci.med.nutrition,sci.med.diseases.cancer, alt.support.cancer,misc.health.alternative Subject: Re: Vegan diet and exercise may stop or reverse prostate cancer progression Date: 15 Aug 2005 19:51:28 -0700 Message-ID: <1124160688.186875.54490@g44g2000cwa.googlegroups.com> David Wright wrote: > In article <1124157743.722754.301190@g47g2000cwa.googlegroups.com>, > Ann <Well4Life0@lycos.com> wrote: > >If the proof was in our dental architecture, we'd have sharp teeth as > >do cats, dogs, tigers, etc. > >Monkeys have straight teeth as humans do. > >They do not eat meat! They eat fruit, nuts, NO meat.... > > Chimpanzees, our closest genetic relative, eat meat. They hunt, kill, > and eat monkeys. You bonehead. COMMENT: Yep, they sure do. Let's forget teeth (which are fairly omnivorous in humans) and take a look at vitamins. Consider vitamin C and beta carotene. Humans store vitamin C far, FAR better than any herbivore needs to. We can go months without getting scurvy-- a period that would kill a monkey. Obviously we're adapted for a very low vitamin C diet even though our distant ancestors had a very high one in the past (a time which caused our prosimian ancestors to lose the ability to make vitamin C). There's only one way to get a diet that is as low in vitamin C as that which humans are designed to withstand, and that's to eat almost nothing but fresh meat (which has vitamin C, but not much). Some of our ancestors must have done that. Some of us still do it. Eskimos would have died of scurvy if humans had the full the metabolism of chimps (a sort of ape), let alone a monkey. If you fed a monkey nothing but seal and seal guts, it wouldn't last two months. Obviously humans are capable of far better. As for beta carotene, you can tell an herbivore by the way it splits beta carotene. True herbivores are so good at splitting beta carotene that you cannot turn their skin or fat yellow or orange, no matter how much of it you feed them. You can't turn a horse's skin or fat orange with carrot juice, or a cow's. You can't even do it with a lab rat, which made beta carotene studies quite difficult in the days when they were trying to get a good model for human skin buildup of it (for porphyria treatment) But it's easy to do with a ferret or cat, because these are true carnivores. Cats cannot split beta carotene at all, and require all of their vitamin A as they'd get it in meat. A cat fed nothing but beta carotene for it's "vitamin A" would go blind and die. Humans? We can split beta carotene, but not very well. We turn orange with too much of it, and our skin and fat turns yellow. We are rather like the chicken, which eats everything-- bugs, worms, and grain. We are neither the horse nor the cat, but somewhere in between. Our digestive systems look like those of pigs or bears. Which both love snakes, and love meat. But will eat anything they can get. SBH From: Steve Harris <sbharris@ix.netcom.com> Newsgroups: sci.med,sci.med.nutrition,sci.med.diseases.cancer, alt.support.cancer,misc.health.alternative Subject: Re: Vegan diet and exercise may stop or reverse prostate cancer progression Date: 16 Aug 2005 14:09:25 -0700 Message-ID: <1124226565.520040.146240@g14g2000cwa.googlegroups.com> fresh~horses@despammed.com wrote: > But wrong. > > Inuit and northern peoples get a LOT of vitamin C from their diet. > Euro-centric and misinformed whites didn't know this, wouldn't credit > the people with any intelligent knowledge about their diet, wouldn't > eat the aboriginal diet, became ill and died. COMMENT: How much is "a lot"?? Since you're not being quantitative, you're NOT EVEN wrong. I don't think 50 to 60 mg a day is "a lot." But it's enough. For reference, it takes 10 mg a vitamin C a day to keep a human being from scurvy. The present RDI is about 60-75 mg (more for men than women, due to body size). Yukon and Metis peoples get 50-60 mg from a traditional diet, and a little more from fortified Western foods (though it's worth noting it's only a little more, and the fortified diet is marginally superior only in C and folate-- the traditional native diet is otherwise superior in all ways). http://www.nutrition.org/cgi/content/full/134/6/1447/T2 By contrast, the hunter-gatherer diet that humans evolved on in Africa supplies 500 mg vitamin C a day. Linus Pauling's calculations, based on treating human vitamin C needs as if we were just big monkeys, was 1000 to 2000 mg a day. THAT is "a lot." A gorilla eating native forage gets 2000 mg a day, and he's twice human size. SBH From: Steve Harris <sbharris@ix.netcom.com> Newsgroups: sci.med,sci.med.nutrition,sci.med.diseases.cancer, alt.support.cancer,misc.health.alternative Subject: Re: Vegan diet and exercise may stop or reverse prostate cancer progression Date: 16 Aug 2005 14:49:41 -0700 Message-ID: <1124228981.888617.194560@g49g2000cwa.googlegroups.com> fresh~horses@despammed.com wrote: > Steve Harris wrote: > > fresh~horses@despammed.com wrote: > > > But wrong. > > > > > > Inuit and northern peoples get a LOT of vitamin C from their diet. > > > Euro-centric and misinformed whites didn't know this, wouldn't credit > > > the people with any intelligent knowledge about their diet, wouldn't > > > eat the aboriginal diet, became ill and died. > > > > > > COMMENT: > > > > How much is "a lot"?? > > > > Since you're not being quantitative, you're NOT EVEN wrong. I don't > > think 50 to 60 mg a day is "a lot." But it's enough. > > > > For reference, it takes 10 mg a vitamin C a day to keep a human being > > from scurvy. The present RDI is about 60-75 mg (more for men than > > women, due to body size). Yukon and Metis peoples get 50-60 mg from a > > traditional diet, and a little more from fortified Western foods > > (though it's worth noting it's only a little more, and the fortified > > diet is marginally superior only in C and folate-- the traditional > > native diet is otherwise superior in all ways). > > > > http://www.nutrition.org/cgi/content/full/134/6/1447/T2 > > > > By contrast, the hunter-gatherer diet that humans evolved on in Africa > > supplies 500 mg vitamin C a day. Linus Pauling's calculations, based on > > treating human vitamin C needs as if we were just big monkeys, was 1000 > > to 2000 mg a day. THAT is "a lot." A gorilla eating native forage > > gets 2000 mg a day, and he's twice human size. > > > > SBH > > > > When eating a traditional diet they get enough C that they do not have > scurvy. COMMENT: I never said, or implied, that they did. But a monkey forced to eat that diet WOULD. Which is the POINT. Humans do just fine on 1 mg/kg of vitamin C a day. If you put all the other primates in the zoo on that, their teeth would start falling out and the USDA and Zoo Commission would be looking to talk to you. Humans have adapted for about the amount of vitamin C that an all-meat diet offers (provided some of it is organ meat and raw fish), which is (surprise) about our DRI/RDA. The other non-C synthesizing primates have not adapted for vitamin C intakes that low. It is amusing that health nuts critisize the DRI/RDA for vitamin C, pointing out that it's way less than primates in zoos need, and what primates in the wild get. Duh. Yep it is. But what we'd like to know is what *humans* need, and what they get "in the wild" over their range, and THAT is no more than they get on a raw-meat diet. Which is about a *tenth* of what a vegetarian would get. To sum up. Eskimos don't have some magically high vitamin C diet. They get the RDA (now called DRI). Part of our reason for thinking the DRI/RDA is enough, is the existance of Eskimos. SBH From: Steve Harris <sbharris@ix.netcom.com> Newsgroups: sci.med,sci.med.nutrition,sci.med.diseases.cancer, alt.support.cancer,misc.health.alternative Subject: Re: Vegan diet and exercise may stop or reverse prostate cancer progression Date: 16 Aug 2005 15:01:47 -0700 Message-ID: <1124227197.186240.44610@g44g2000cwa.googlegroups.com> Steve Harris wrote: > fresh~horses@despammed.com wrote: > > But wrong. > > > > Inuit and northern peoples get a LOT of vitamin C from their diet. > > Euro-centric and misinformed whites didn't know this, wouldn't credit > > the people with any intelligent knowledge about their diet, wouldn't > > eat the aboriginal diet, became ill and died. > > > COMMENT: > > How much is "a lot"?? > > Since you're not being quantitative, you're NOT EVEN wrong. I don't > think 50 to 60 mg a day is "a lot." But it's enough. > > For reference, it takes 10 mg a vitamin C a day to keep a human being > from scurvy. The present RDI is about 60-75 mg (more for men than > women, due to body size). Yukon and Metis peoples get 50-60 mg from a > traditional diet, And by the way, that also includes the Inuit, which are on the same table. Full text is at: http://www.nutrition.org/cgi/content/full/134/6/1447/T2 SBH From: Steve Harris <sbharris@ix.netcom.com> Newsgroups: sci.med,sci.med.nutrition,sci.med.diseases.cancer, alt.support.cancer,misc.health.alternative Subject: Re: Vegan diet and exercise may stop or reverse prostate cancer progression Date: 17 Aug 2005 21:03:11 -0700 Message-ID: <1124337791.817397.321630@f14g2000cwb.googlegroups.com> fresh~horses@despammed.com wrote: > I appreciate the cite. However, it's not the be all and end all for me, > as it seems to be for you. > > Zee COMMENT: Since secret native ways don't exactly include how to use a liquid chromatograph to quantitate vitamin C intake, I think this is the last word on the subject at the present time. This (you're welcome) is the single best study that exists in the literature on the subject. And this is the only one I know of that looks at "traditional" vs. modern diets in the same people in the same study. The future will no doubt do better, as the future usually does, but this is impressive in its scope and control. There ARE of course other previous studies in the literature on human arctic nutrition in various peoples, going back many decades. However, looking at several of them, I see no big differences from this one, so far as vitamin C intakes for Northern aboriginals goes. So I have no reason to doubt the conclusions of this study. Why would you? The basic conclusions here is simple. Eskimos don't need orange juice. But that's not because they have something just as good as orange juice. Rather, it's because nobody really needs that much vitamin C (sorry, Dr. Pauling). Humans have evolved so that just about any fresh food varied diet is enough for health, no matter what's in it. Humans have to really work to get scurvy--eating for many months a *highly* limited, processed, dried, burned, boiled, preserved, and generally screwed-up diet. Which is why it scurvy as a disease wasn't seen until we got "civilization"-- ie, the modern navy and military (a bunch of dumb men trying to live for 3 months on dry beef and hardtack), and elderly people with poor dentition living off tea, toast, and stuff out of tin cans. If you were an elderly Inuit a century ago and lost your teeth, with luck a daughter chewed your fresh food for you. And failing that, you got left on the ice when the people moved on. Both sure cures for scurvy. SBH From: Steve Harris <sbharris@ix.netcom.com> Newsgroups: sci.med,sci.med.nutrition,sci.med.diseases.cancer, alt.support.cancer,misc.health.alternative Subject: Vitamin C RDA / RDI s Re: Vegan diet and exercise may stop or reverse prostate cancer progression Date: 18 Aug 2005 14:26:05 -0700 Message-ID: <1124400365.534688.56070@f14g2000cwb.googlegroups.com> George Cherry wrote: > Here's a point I'd like to squeeze in here. Are > we trying to "satisfice" or optimize? Are we trying to > prevent scurvy or extend life by, say, counter-acting > Reactive Oxygen Species? For example, you CAN > eat lots of red meat everyday and probably only > shorten your life by a decade or so. Or you can avoid > red meat, take anti-oxidants and fish oil, and live an > extra decade or so. > > GWC COMMENT: Obviously we're trying for vitamin C optimization, but what are your test parameters? The problem with vitamin C is that the people who set the target numbers for the human RDA/RDI (I'm just going to call it the "RDA") aren't total morons. They are a bunch of experts on the Food and Nutrition Board from the US National Academy of Sciences, looking at both human and animal data, and making intelligent inferences. No, they don't have some secret kabalistic agenda to make the world unhealthy, by denying it a reason to take vitamin C pills. Humans eating the RDA are NOT getting just the amount of vitamin C needed to prevent scurvy or disease, contrary to what you've heard from a hundred health quacks. Rather, the RDA amount of vitamin C comes reasonably close to saturating body stores, and even supplementing at 4 times the RDA only raises the average person's ascorbate levels by 33%, from about 60 to about 80 umole/L after many months (see study below for an example). That is only twice the increase you get from adding an extra supplment of 1x the RDA, which gets you from 60 to about 70 umole/L. Big deal. Should we do that anyway, by taking as much vitamin C as we'd get from a vegetarian diet (4 to 10 times the RDA)? Maybe. I don't know. The problem is that most animals that make their own ascorbate, have plasma and tissue levels *lower* than humans eating only the RDA, and the National Academy was well aware of that. But wups, Pauling didn't tell you that, did he? For example, a racing grayhound (see study below) which makes its own vitman C of course, has normal plasma levels of 40 +/- 19 umole/L vitamin, and if it's given HUGE supplemental doses for an animal that size (1 g a day in a 20 kg dog) it only goes up to levels of at most about 60-- the same as unsupplemented humans have all the time! And it runs slower, too. Dogs are evidently optimized for C levels already. And at lower levels than humans getting the RDA run. Now, animals that make their own vitamin C waste it prodigiously, since it's metabolically cheap to make from a bit of glucose. Pauling made much of their synthesis rates. Non-primate animals make a lot of vitamin C to get levels lower than humans get from just a little. Humans have a lot of energy intensive vitamin C saving equipment (like our great C-saving renal pumps), which help us store vitamin C for the winter (something other animals, and no other primate, has to do). But here we turn Pauling's argument around and ask: if higher vitamin C levels in the blood are a good thing and not that hard or metabolically costly to get for an animal that makes its own, then WHY don't vitamin C-making animals animals have *high* vitamin C levels in their blood, relative to humans? Why doesn't the average *dog* run the same vitamin C levels as a human taking Pauling's recommended 6 grams a day of C? Either vitamin C is not a totally benign thing, or else chronically high levels don't help any, from an evolutionary standpoint (we can argue about whether evolution is interested in chronic disease or aging). I suspect the only reason humans (and some other primates) run high is because we're probably running a vitamin C savings account against hard times, and the only way to store vitamin C is to run high plasma and tissue levels, since it's water soluble. Doh! But we humans can do that on remarkably little vitamin C. That's the point. Here's the dog paper. http://www.nutrition.org/cgi/content/full/132/6/1616S Here's one of a zillion human supplementation papers. Eur J Clin Nutr. 1999 May;53(5):367-74. Do iron and vitamin C co-supplementation influence platelet function or LDL oxidizability in healthy volunteers? Yang M, Collis CS, Kelly M, Diplock AT, Rice-Evans C. The International Antioxidant Research Centre, The Guy's King's College, and St Thomas's School of Biomedical Science, London, UK. OBJECTIVE: To examine the effect of co-supplementation with iron and vitamin C on antioxidant status, platelet function and low density lipoprotein oxidation in normal healthy volunteers. DESIGN: The study was carried out with two groups of 20 subjects each acting as their own control, comparing presupplemention with postsupplemention. One group was supplemented with iron and the RDA level of vitamin C and the second group with iron and 260 mg/d vitamin C. SETTING: The International Antioxidant Research Centre, The Guy's, King's College and St Thomas's School of Biomedical Science, Guy's Campus, London. SUBJECTS: Forty normal healthy volunteers, recruited from the staff of the Medical School and Hospital in which two volunteers withdrew during the study. INTERVENTIONS: Subjects in both studies were randomly assigned to one of two groups (5 males and 5 females group) and received supplements containing iron (14 mg/d) and either 60 mg/d (Group A) or 260 mg/d (Group B) vitamin C for 12 wk. Blood samples were taken at 6 wk and 12 wk, and prior to supplementation and analysed for iron and antioxidant status (transferrin bound iron, vitamin C and E, and beta-carotene levels) in both studies. Samples from the first study were analysed for the susceptibility of LDL isolated from plasma to Cu2+-induced oxidation and samples from the second for platelet function. RESULTS: Transferrin-bound iron was significantly increased (P < 0.05) at 12 wk, in Group A subjects (from 14.9+/-5.3 micromol/1 to 19.5+/-2.3 micromol/l; mean+/-s.d.; n=19), whereas those in Group B showed a significant increase (P < 0.05) after 6 wk (from 15.8+/-4.5 micromol/l to 20.4+/-6.6 micromol/l; n = 19) which decreased at 12 wk (16.3+/-5.0 micromol/l). Plasma total ascorbate significantly increased from an initial level of 59.3+/-21.3 micromol/l to 87.6+/-29.0 micromol/l after 6 wk and 81.7+/-11.4 micromol/l after 12 wk following the Group B supplementation, but only after 12 wk in Group A (from 64.0+/-24.8 micromol/l to 77.2+/-13.2 micromol/l). Plasma alpha-tocopherol concentrations were significantly increased after 6 wk and 12 wk with both levels of supplementation (from 24.2+/-5.71 micromol/l Group A and 23.4+/-5.3 micromol/l Group B to 26.3+/-5.5 micromol/l and 25.71+/-4.7 micromol/1 respectively at 12wk). The mean lag phase to oxidation of low density lipoprotein (LDL) was significantly increased in subjects in Group B after 12 wk ingestion of iron and 260 mg vitamin C (from 80.0+/-14.8 min to 97.2+/-16.9 min; n = 9). Platelet sensitivity to ADP-induced aggregation was significantly decreased (P < 0.05) by 12 wk in Group A (from EC50 2.3 < or = 1.3 microM to 3.7+/-2.2 microM; n = 10), whereas those receiving higher vitamin C showed a significant decrease (P < 0.05; from EC50 1.9+/-0.6 microM to 3.1+/-1.8 microM) after 6wk which subsequently increased towards presupplemental levels (2.6+/-1.6 microM). Platelets from the latter subjects showed a significant reduction in ADP-induced ATP secretion at both 6wk and 12 wk. CONCLUSION: The results show modest beneficial effects on LDL oxidation and platelet function following supplementation with iron and vitamin C. No evidence for pro-oxidant effects was observed. Publication Types: Clinical Trial Randomized Controlled Trial PMID: 10369491 [PubMed - indexed for MEDLINE] From: Steve Harris <sbharris@ix.netcom.com> Newsgroups: sci.med,sci.med.nutrition,sci.med.diseases.cancer, alt.support.cancer,misc.health.alternative Subject: Re: Vegan diet and exercise may stop or reverse prostate cancer progression Date: 18 Aug 2005 15:43:37 -0700 Message-ID: <1124405017.396792.4110@g14g2000cwa.googlegroups.com> Jim Chinnis wrote: > Steve Harris <sbharris@ix.netcom.com> wrote in > part: > > > > >Steve Harris wrote: > >> fresh~horses@despammed.com wrote: > >> > But wrong. > >> > > >> > Inuit and northern peoples get a LOT of vitamin C from their diet. > >> > Euro-centric and misinformed whites didn't know this, wouldn't credit > >> > the people with any intelligent knowledge about their diet, wouldn't > >> > eat the aboriginal diet, became ill and died. > >> > >> > >> COMMENT: > >> > >> How much is "a lot"?? > >> > >> Since you're not being quantitative, you're NOT EVEN wrong. I don't > >> think 50 to 60 mg a day is "a lot." But it's enough. > >> > >> For reference, it takes 10 mg a vitamin C a day to keep a human being > >> from scurvy. The present RDI is about 60-75 mg (more for men than > >> women, due to body size). Yukon and Metis peoples get 50-60 mg from a > >> traditional diet, > > > >And by the way, that also includes the Inuit, which are on the same > >table. Full text is at: > > > >http://www.nutrition.org/cgi/content/full/134/6/1447/T2 > > > >SBH > > Wow. Look at the caloric intakes! And the loss of vitamin D on > non-traditional diets... > -- > Jim Chinnis Warrenton, Virginia, USA COMMENT: Good pickups. The calories ARE unexpectedly low--- 2000 to 2300 kcal for an arctic diet? Sheesh! That's efficiency! BTW, there's an obvious transposition error in the caloric intake for the Yukon peoples: instead of 1971 kJ, it must be 9171 kJ = 2192 kcal. Yes, the high dietary vitamin D's on the traditional diet tells you how Inuits etc stayed black haired and didn't turn Caucasion complected. They got it all on diet, and didn't need to. But on a "modern diet" I would think they'd be at high risk for rickets and osteomalacia, since they surely don't get any significant vitamin D from the sun. SBH |
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