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Paleolithic (Hunter/Gatherer) Health & Fitness
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10th-Mar-2008 03:39 am - Diverticulosis
This is what I've been doing and thinking about since Friday..
*Hoping my paper is arlight* :)

how many grams of fiber do you eat?
Suggested is 10-13g of fiber per 1000Calories you eat.

Thought I would share some stuff.

Colonic diverticulosis refers to small outpouchings from the colonic lumen due to mucosal herniation through the
colonic wall at sites of vascular perforation. Abnormal colonic motility and inadequate intake of dietary fibre have been
implicated in its pathogenesis. This acquired abnormality is typically found in developed countries, and its prevalence
rises with age. Most patients affected will remain entirely asymptomatic; however, 10–20% of those affected can
manifest clinical syndromes, mainly diverticulitis and diverticular haemorrhage. As our elderly population grows, we
can anticipate a concomitant rise in the number of patients with diverticular disease. Here, we review the incidence,
pathophysiology, clinical presentation, and management of diverticular disease of the colon and its complications.

Diverticular disease of the colon
by: Neil Stollman, Jeffrey B Raskin

Fat intake appears to be related to DD, particularly when dietary fibre intake is low. Positive associations were found between DD and saturated, monounsaturated,
transsaturated, and polyunsaturated fats. A weak inverse association was observed for ω-3 fatty acids and DD. When adjusted for physical activity
and dietary fibre, however, the association of DD with total fat and various types of fat was no longer significant (level II evidence).22
The influence of red meat on DD and whether there is biologic interaction between dietary fibre and red meat need to be explored. One study showed that patients with DD had higher average daily fecal bile acid output than controls. The acid output was reduced to nearly the level of controls’ output after administration of bran (level II evidence).26 These findings led some to suggest that DD is a motility disorder
that can be reversed by higher intake of dietary fibre (level III evidence).27

Preventing diverticular disease: Review of recent evidence on high-fibre diets
by:Walid Aldoori, MBBCH, MPA, SCD Milly Ryan-Harshman, PHD, RD
27th-Feb-2008 03:21 pm(no subject)
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Anybody read The Great Cholesterol Con by Anthony Colpo? I'm looking for a book that disproves the lipid hypothesis in an in-depth and scientific way. I'm also considering The Myth of Cholesterol: Dispelling the Fear and Creating Real Heart Health. If you can recommendation either book or another, I'd greatly appreciate it.
27th-Feb-2008 09:13 am - New to low carb
Hi there,

I've just rejoined this community....I was a lurker before and decided  that I will try posting for once on a community :).
I am just beginning a low carb diet.  Doing the Atkins thing and am on my thrid day.  I'm feeling a bit low on energy and headachy at the moment.  I tried Atkins two years ago but was put off by the way I felt and I gave in to carbs very early.  This time I did research and prepared myself for feeling icky and am just using self talk to get through it.   I'm very intrigued by the paleo diet and I love reading about it.
I plan to  take small steps over the next couple of years to achieve a complete paleo diet. 

Beginning in June my family's veggies will come from a local organic farm here in northern Colorado (Fort Collins/Wellington area).  Three neighbors and I are going to split two shares.  I also garden a lot and plan to supplement from my garden.  A goal I have is to find local meats and get into a habit of buying exclusively local meat whenever possible.  In Colorado there is an abundance of lamb, cattle, buffalo and chicken ranches and farms.  I would like to find the ones that are ethically and naturally raising animals.

For many years I have had a hard time digesting beef and use buffalo as a substitute.  Buffalo is great but I am slowly working beef back into my diet to try to build up the digestive enzymes.  I only buy organic beef and bad tummy reactions are hit and miss.

I have to kids.  A four year old boy who makes picky eating a sport and an 11 year old girl who will rarely try anything new.  I'm beginning the weaning off of carbs myself.  I aim to eventually help my husband and children wean off of carbs as well....or as much as possible.

A January post I read from this community had a mention of plant swaps.  I would love to participate in something like that :).  If you tell me how to do it I'm in!

My husband and I are avid gardeners.  We have hundreds of different plant species on our property.  We may have some plants you might be interested in.  Tons of echinacea and many native colorado plants.

If anyone has any suggestions for where to buy a variety of heirloom vegetables with good growing reputations (meaning the plants grow well....I had troubles with some heirloom varieties last year from the local nursery we bought them from) I would love to hear the recommendations.

19th-Feb-2008 02:38 pm - Paleo Graffiti
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Click and enjoy!
Holick MF.

Department of Medicine, Section of Endocrinology, Nutrition, and Diabetes, Vitamin D, Skin and Bone Research Laboratory, Boston University Medical Center, Boston, Massachusetts, USA.


"Vitamin D(3) (cholecalciferol) sufficiency is essential for maximising bone health. Vitamin D enhances intestinal absorption of calcium and phosphorus. The major source of vitamin D for both children and adults is exposure of the skin to sunlight. Season, latitude, skin pigmentation, sunscreen use, clothing and aging can dramatically influence the synthesis of vitamin D in the skin.

Very few foods naturally contain vitamin D or are fortified with vitamin D. Serum 25-hydroxyvitamin D [25(OH)D; calcifediol] is the best measure of vitamin D status. Vitamin D deficiency [as defined by a serum 25(OH)D level of <50 nmol/L (<20 ng/mL)] is pandemic. This deficiency is very prevalent in osteoporotic patients. Vitamin D deficiency causes osteopenia, osteoporosis and osteomalacia, increasing the risk of fracture. "
To sum this article up, ore you don't have time:
diet high in acid-ash protein causes excessive urinary calcium loss because of its acid content; calciuria is directly related to urinary net acid excretion. Alkali buffers, whether chemical salts or dietary fruits and vegetables, reverse this urinary calcium loss.

The average American diet, which is high in protein and low in fruits and vegetables, generates a large amount of acid, mainly as sulfates and phosphates. The kidneys respond to this dietary acid challenge with net acid excretion, as well as ammonium and titratable acid excretion. Concurrently, the skeleton supplies buffer by active resorption of bone. Indeed, calciuria is directly related to net acid excretion. Different food proteins differ greatly in their potential acid load, and therefore in their acidogenic effect. A diet high in acid-ash proteins causes excessive calcium loss because of its acidogenic content. The addition of exogenous buffers, as chemical salts or as fruits and vegetables, to a high protein diet results in a less acid urine, a reduction in net acid excretion, reduced ammonium and titratable acid excretion, and decreased calciuria. Bone resorption may be halted, and bone accretion may actually occur. Alkali buffers, whether chemical salts or dietary fruits and vegetables high in potassium, reverse acid-induced obligatory urinary calcium loss. We conclude that excessive dietary protein from foods with high potential renal acid load adversely affects bone, unless buffered by the consumption of alkali-rich foods or supplements.
~Uriel S. Barzel3 and Linda K. Massey

Link to Journal Article

and just to get the other side of the story:
Excess Dietary Protein May Not Adversely Affect Bone
~~Robert P. Heaney
knowledge evil
"Boston—July 19, 2007 One route to a long and healthy life may be establishing the right balance in insulin signaling between the brain and the rest of the body, according to new research from Children's Hospital Boston and Harvard Medical School. The study, published in the July 20 issue of Science, not only reinforces the value of exercising and eating in moderation, but also helps explain a paradox in longevity research."

And And ohhh oohh SNAP

"The study also calls into question the long-term effects of insulin therapy for diabetes, White adds. "High insulin should be the short term solution to insulin resistance, because it might damage the brain in the long run," he says. Better treatments for diabetes and healthy aging, he suggests, should concentrate on sensitizing the body's cells to low amounts of insulin."

full story...
29th-Jan-2008 03:46 pm - Hi, n00b here
Glad to find this place! I've been endeavoring paleo for a few months now and for the most part have been successful. Since I like to cook I make pretty much everything from scratch now and I've lost about 25 pounds without working out (I'd be losing more if I did). I try to buy organic where I can but haven't really found a good source of organic meat that doesn't cost a kidney, although my local supermarket does sell organic chicken. I also do intermittent fasting, also with some success (hey, cavemen didn't eat three meals a day plus two snacks!). I get very tired of being told that I'm "killing yourself with all those eggs and meat" despite my weight loss as well as all the people believing rice cakes and soy are healthy (uh, no). About my only indugence is almond milk with Splenda-sweetened syrup but that's pretty rare. Looking forward to participating here!
godless killing machine
It's a really weird story, which makes it interesting to read...

"The good news is that for five patients who were able to endure three months of carb-free eating, the results were positive: the patients stayed alive, their physical condition stabilized or improved and their tumors slowed or stopped growing, or shrunk. These early findings have elicited "very positive reactions and an increased interest from colleagues," Kämmerer says, while cautioning that the results are preliminary and that the study was not designed to test efficacy, but to identify side effects and determine the safety of the diet-based approach. So far, it's impossible to predict whether it will really work. It is already evident that it doesn't always: two patients recently left the study because their tumors kept growing, even though they stuck to the diet."

godless killing machine
here is a little article I stumbled across..

When our human ancestors started eating meat, evolution served up a healthy bonus - the development of genes that offset high cholesterol and chronic diseases associated with a meat-rich diet, according to a new USC study.

Those ancestors also started living longer than ever before - an unexpected evolutionary twist.

The research by USC professors Caleb Finch and Craig Stanford appears in Wednesday's Quarterly Review of Biology.

'At some point - probably about 2 1/2 million years ago - meat eating became important to humans,' said Stanford, chair of the anthropology department in the USC College of Letters, Arts and Sciences, 'and when that happened, everything changed.'

'Meat contains cholesterol and fat, not to mention potential parasites and diseases like Mad Cow,' he said. 'We believe humans evolved to resist these kinds of things. Mad Cow disease - which probably goes back millions of years - would have wiped out the species if we hadn't developed meat-tolerant genes.'

Finch, the paper's lead author, and Stanford found unexpected treasure troves in research ranging from chronic disease in great apes to the evolution of the human diet. They also focused on several genes, including apolipoprotein E (apoE), which decreases the risk of Alzheimer's and vascular disease in aging human adults.

Chimpanzees - who eat more meat than any other great ape, but are still largely vegetarian - served as an ideal comparison because they carry a different variation of the apoE gene, yet lack human ancestors' resistance to diseases associated with a meat-rich diet.

While chimpanzees have a shorter life span compared to humans, they demonstrate accelerated physical and cerebral development, remain fertile into old age and experience few brain-aging changes relative to the devastation of Alzheimer's seen in humans today. Finch and Stanford argued that the new human apoE variants protected the chimpanzees.

In a series of 'evolutionary tradeoffs,' the researchers said, humans lost some advantages over those primates, but gained a higher tolerance to meat, slower aging and longer lifespan.

Still, if humans developed genes to compensate for a meat-rich diet, why do so many now suffer from high cholesterol and vascular disease?

The answer is a lack of exercise and moderation, according to the researchers.

'This shift to a diet rich in meat and fat occurred at a time when the population was dominated by hunters and gatherers,' said Finch, a USC University Professor and holder of the ARCO-William F. Kieschnick Chair in the Neurobiology of Aging.

'The level of physical activity among these human ancestors was much higher than most of us have ever known,' he said. 'Whether humans today, with our sedentary lifestyle, remain highly tolerant to meat eating remains an open question researchers are looking into.'

Stanford, co-director of the university's Goodall Research Center, said that modern-day humans 'tend to gorge ourselves with meat and fat.'

'For example, our ancestors only ate bird eggs in the spring when they were available,' he said. 'Now we eat them year-round. They may have hunted one deer a season and eaten it over several months. We can go to the supermarket and buy as much meat as we want.'

'I think we can learn a lesson from this,' Stanford said. 'Eating meat is fine, but in moderation and with a lot of exercise.'

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