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  #106   ^
Old Mon, Jun-04-12, 08:19
howlovely howlovely is offline
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Well, I ranted too, but I think it is important that we do. I sort of do not understand why nutritionists refuse to change their stance when it is obvious that their recommendations are not working.

Here is theory of mine:

Quite a lot of nutritionists are young, thin women who exercise a great deal. They eat a very low calorie, low fat diet. They have been obsessed with being skinny and eating as little as possible since adolescence.They are convinced that fat people are just gluttonous slobs. I think most of them have the worst combination of personality traits: borderline eating disorder behavior, combined with a smugness about their thinness. The problem is that the way the "profession" of nutrition exists currently, it is just the perfect place for someone like this to thrive.
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  #107   ^
Old Mon, Jun-04-12, 15:03
WereBear's Avatar
WereBear WereBear is offline
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Plan: EpiPaleo/Primal/LowOx
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Quote:
Originally Posted by leemack
The internet is the greatest advance there has been to enable individual power and knowledge, at a time where corporations (allied with government) are seeking to strip individuals of power and knowledge in order to facilitate ever increasing profits.

Wow this turned into a rant - sorry about that. Better stop there.


Lee


Oh, you preach it, sister!

When I started it was incredibly soothing to read things explained by knowledgeable people; I learned so much! I used an online tool to track my vitamins; and I was meeting or exceeding every one except D. Stuff like that really kept me going; and it was all because of the internet.
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  #108   ^
Old Mon, Jun-04-12, 18:42
Nancy LC's Avatar
Nancy LC Nancy LC is offline
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Quote:
Originally Posted by howlovely
My own issue with coconuts and coconut products is that I think they are potentially overused by some paleo folk. Personally, my ancestry is 100% Northern European.
Err... no, you have far more African ancestors than you do European ones. No one is 100% Northern European. Homo Sapiens started in Africa 200,000 years ago and only 40,000 years ago got to Europe. Our genome isn't determined by those we can trace on Ancestory.com.

Before homo sapiens, we had a whole lot of primate ancestors too.
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  #109   ^
Old Mon, Jun-04-12, 20:59
bike2work bike2work is offline
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Plan: Fung-inspired fasting
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Hmm. I haven't studied anthropology in depth but I've been doing some looking around lately about early human ancestors in Britain and keep finding information that puts the date much earlier. This, for example.

I certainly don't want to argue against coconut, though.
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  #110   ^
Old Mon, Jun-04-12, 21:16
Nancy LC's Avatar
Nancy LC Nancy LC is offline
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Hmmm... considering the timeline I found Homo Sapiens were only found in Africa that long ago. Perhaps they're referencing a near cousin? Like homo erectus or neandertals? Those lines died out though.
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  #111   ^
Old Mon, Jun-04-12, 21:56
bike2work bike2work is offline
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I am out of my depth.
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  #112   ^
Old Mon, Jun-04-12, 22:38
ICDogg's Avatar
ICDogg ICDogg is offline
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Plan: Low carb, high fat keto
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Quote:
Originally Posted by Nancy LC
Hmmm... considering the timeline I found Homo Sapiens were only found in Africa that long ago. Perhaps they're referencing a near cousin? Like homo erectus or neandertals? Those lines died out though.


Neanderthals interbred with homo sapiens and are part of some of our ancestry.

http://www.nytimes.com/2010/05/07/s...eanderthal.html
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  #113   ^
Old Tue, Jun-05-12, 07:32
leemack's Avatar
leemack leemack is offline
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Plan: no sugar/grains LCHF IF
Stats: 478/354/200 Female 5' 9"
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Quote:
Originally Posted by bike2work
Hmm. I haven't studied anthropology in depth but I've been doing some looking around lately about early human ancestors in Britain and keep finding information that puts the date much earlier. This, for example.

I certainly don't want to argue against coconut, though.


Interesting, but they're not our ancestors unless they actually evolved into neanderthals, and its a currently debated issue. There were many human species that left africa much earlier than our ancestors and then continued evolving - some like neanderthals we eventually interbred with. Though humans of European descent have some neaderthal DNA, Africans don't. The amount of neanderthal DNA we have is tiny, we're much more a product of Africa, than of Europe.

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


Lee
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  #114   ^
Old Tue, Jun-05-12, 08:28
Nancy LC's Avatar
Nancy LC Nancy LC is offline
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Neandertal DNA has been sequenced and, at most, humans have about 2-4% Neandertal DNA. Actually, it might be limited to Europeans.

Neandertals and humans share a common ancestor. Like fish and birds do --if you go back far enough.
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  #115   ^
Old Tue, Jun-05-12, 09:07
leemack's Avatar
leemack leemack is offline
NEVER GIVING UP!
Posts: 5,030
 
Plan: no sugar/grains LCHF IF
Stats: 478/354/200 Female 5' 9"
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Location: UK
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Quote:
Originally Posted by Nancy LC
Neandertal DNA has been sequenced and, at most, humans have about 2-4% Neandertal DNA. Actually, it might be limited to Europeans.

Neandertals and humans share a common ancestor. Like fish and birds do --if you go back far enough.


No, Africans don't have neanderthal DNA.

And yes there's a 'trunk' of DNA running through all living things.


Lee
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  #116   ^
Old Tue, Jun-05-12, 09:35
cpsnow cpsnow is offline
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There are at least two important stories behind the history of the coconut. One is the story of the domestication of the coconut by humans, probably in the Pacific around Indonesia, spreading from there throughout the tropics and back to Africa. This occurred during the last several thousand years, not 40,000 years ago or before. This article contains the science, and an excellent graphic display at the end:

http://news.wustl.edu/news/Pages/22438.aspx

However, there was an earlier dispersal, prior to human activity, about which less appears known. It is quite possible that ancestral humans had access to the earlier coconut prior to the domestication event several thousand years ago:


Quote:
Kenneth Olsen, Ph.D., Washington University assistant professor of biology in Arts & Sciences, has received a $20,000 grant from the National Geographic Society to study the DNA of the plant, which can be used to infer historical relationships among populations. The work will be done in collaboration with Bee Gunn, a research specialist at the Missouri Botanical Garden.

Portable nutrition

“The coconut played a crucial role in the history of human exploration and dispersal across the tropics, and it continues to play a fundamental role in human societies today,” said Olsen. “As a portable source of nutrition and water, the coconut was critical for humans to be able to voyage, establish trade routes, and colonize lands in the Pacific Rim, coastal India, Africa and South America.

“Our preliminary DNA sequence data show genetic variation within the coconut, and this is key to delineating historical relationships among different populations.

“Fossil data indicate that the coconut underwent an ancient dispersal event that predates human activity. This early dispersal is expected to have created a genetic signature that can be traced by examining the genetic structure of plants sampled across the species range.

Superimposed on this ancient ‘phylogeographic’ structure is the more recent history of human dispersal, cultivation and domestication,” Olsen continued.


http://phys.org/news105629196.html
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  #117   ^
Old Tue, Jun-05-12, 09:46
Judynyc's Avatar
Judynyc Judynyc is offline
Attitude is a Choice
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Plan: No sugar, flour, wheat
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Quote:
Originally Posted by leemack
No, Africans don't have neanderthal DNA.

And yes there's a 'trunk' of DNA running through all living things.


Lee

What? You mean that we didn't just show up 6000 yrs ago?

just kidding
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  #118   ^
Old Tue, Jun-05-12, 09:57
Nancy LC's Avatar
Nancy LC Nancy LC is offline
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Better neanderthal/human explanation.

Quote:
The complete genomes of the Neanderthals and modern humans, whose lineages separated from some unknown common ancestor at least 400,000 years ago, are 99.5 percent identical. They are, in fact, our closest evolutionary relatives. By comparison, humans and chimpanzees share 98 percent of their genes.

So, while there are other Homo lines, they're related by common ancestor, they're not directly descended from one another. A chart would show this much better, but I haven't found one.
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  #119   ^
Old Tue, Jun-05-12, 10:14
WereBear's Avatar
WereBear WereBear is offline
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What impressed me about coconut is that it is such a nutritious food. The oil does amazing healing things, including Alzheimer's.

http://alzheimersweekly.com/content...ementia-therapy

For me, it is the ONLY oil on earth which does not aggravate my face while moisturizing; I am trying an extensive trial to see if it continues to be good for my face. I also have a big spoonful for breakfast, and I have a few lovely recipes for coconut, and coconut flour, that I can enjoy without trouble, at least so far.

I remain pro-coconut until it indicates it is not my friend.
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  #120   ^
Old Tue, Jun-05-12, 10:22
cpsnow cpsnow is offline
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Of course you are right Nancy. Though one would add that "bushiness" is characteristic of hominid evolution and genetics generally. So while there are main lines of descent, there tend to be small contributions from other hominid types. It is not clear what the biological significance of this is. We do know the (currently) mysterious Denisovans also contributed genes that have been incorporated into our genome. Evidently, some 4 to 6 % of Melanesian DNA comes from that source.


As of a hundred thousand years ago, there were at least six extant hominid types walking the Earth: Erectus, Denisovans, Neanderthal, anatomically-modern humans, H. Floresiensis, and the north African finds that differ from us, ie the types found at Jebel Irhoud in Morocco.

While I find this diversity fascinating -- especially in that it is not commonly known --you are quite right that our line and genome is relatively distinct, quite young, and that the contributions from other hominids since our origins ~200,000 years ago are modest at best.
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