Re: [fast5] Re: Thyroid, iodine, and weight loss

Genetic changes happen a whole lot faster than that. A good
example is what happens to wild dogs ... when a dog pack goes
feral, they all end up looking the same (the so-called "yellow dogs").
Ditto for goldfish that escape: they go back to looking like the
original grey carp within a few years. Anyway, the dietary changes
that happened when humans started farming happened pretty quickly,
and the evidence for them is pretty clear (like, we have the DNA
to show it). You can trace, for instance, the prevalence of the
lactase-producing gene:

http://www.eurekalert.org/pub_releases/2009-08/ucl-mds082609.php

Some people do seem to do well on an all-meat diet. Some people
don't. Figuring out all the factors in that is an interesting challenge,
and probably has a lot to do with your immediate ancestors. I'm
a little leery of the "no vegie" diets mainly because I have known
healthy people who ate mainly meat, who died of gut cancer (associated
with low butyrate levels in the gut: not something your average
blood test picks up).

Which is one reason we don't have a good consensus on "what
people should eat". It seems the evidence is giving us a better
consensus though, on "when people should eat" ... everyone seems
to do better when eating less often (and the "small window per day"
Fast-5 approach seems to be a really adaptable one for us).

This is getting off-topic though, so I'm shutting up now ... ! :-)

On Sun, Mar 14, 2010 at 11:07 AM, Churyl Zeviar <churyl@tmail.com> wrote:

> I wonder... some people who follow the paleolithic diet, and some
> research, says that it takes more than 10,000 years to change our genes.
> Hmmm... that's why they prefer to follow a diet that they believe we
> could have consumed hundreds of thousands of years ago, and even more
> than a million years ago, as opposed to 10,000 years.
>
> I have corresponded with a guy who has eaten nothing but meat and fat
> (including lots of organ meat) for 10 years and he says he is
> unbelievably healthy, and his blood tests say he's in perfect health. He
> is in his 50's...
>
> Things that make you go hmmmm... :-)
>
>

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