http://heartscanblog.blogspot.com/2009/11/dr-david-grimes-reminds-us-of-vitamin-d.html
Fascinating analysis, but tells us what we all should know anyway - sunlight makes us feel better and if we can't get enough sunlight, there's a possible and well tested substitute: fish oil. Worth reading just to know how Eskimos used to get enough vitamin even with no citrus and no sunlight!
Wednesday, November 4, 2009
Fascinating Model on Fat, Evolution, and Critical Review of a Study
You're a hunter/gatherer, eating what you kill. How has your system evolved over the last 1-2 million years to help you thrive in conditions of unpredicable food supply?
"As the food is digested, Nanook's insulin rises to allow amino acids from the protein to be absorbed into his tissues from his bloodstream. But wait, insulin also tells tissues to absorb glucose, and the meal contained virtually no carbohydrate. Nanook is in danger of hypoglycemia. Fortunately, his brain detects the palmitic acid from the meal and signals his tissues to become resistant to the glucose-transporting effect of insulin. This may also cause his liver to produce some glucose to make up for the modest amount that gets removed
from his bloodstream during the insulin spike. His blood glucose remains stable.
The next week, the herd of caribou has moved on and there's no prey in Nanook's territory. He has to live on his own body fat for two days while he hunts. Fortunately, human body fat is about 20% palmitic acid.
As fat is released into his bloodstream, the brain detects the palmitic acid and reduces peripheral insulin sensitivity. This helps Nanook's body conserve glucose and use his own body fat as fuel instead.
Over a wide range of fat, carbohydrate and calorie intakes, this system works to maintain stable blood glucose. These three scenarios all illustrate why palmitic acid would be helpful by causing temporary
insulin resistance in situations where blood glucose needs to be conserved."
http://wholehealthsource.blogspot.com/2009/09/palmitic-acid-and-insulin-
resistance.html
"As the food is digested, Nanook's insulin rises to allow amino acids from the protein to be absorbed into his tissues from his bloodstream. But wait, insulin also tells tissues to absorb glucose, and the meal contained virtually no carbohydrate. Nanook is in danger of hypoglycemia. Fortunately, his brain detects the palmitic acid from the meal and signals his tissues to become resistant to the glucose-transporting effect of insulin. This may also cause his liver to produce some glucose to make up for the modest amount that gets removed
from his bloodstream during the insulin spike. His blood glucose remains stable.
The next week, the herd of caribou has moved on and there's no prey in Nanook's territory. He has to live on his own body fat for two days while he hunts. Fortunately, human body fat is about 20% palmitic acid.
As fat is released into his bloodstream, the brain detects the palmitic acid and reduces peripheral insulin sensitivity. This helps Nanook's body conserve glucose and use his own body fat as fuel instead.
Over a wide range of fat, carbohydrate and calorie intakes, this system works to maintain stable blood glucose. These three scenarios all illustrate why palmitic acid would be helpful by causing temporary
insulin resistance in situations where blood glucose needs to be conserved."
http://wholehealthsource.blogspot.com/2009/09/palmitic-acid-and-insulin-
resistance.html
Interesting On Biggest Loser Weight Loss - Do Not Emulate
http://www.fitnessspotlight.com/2008/12/17/hollywood-is-not-helping-for-
weight-loss/
Makes some interesting points about the compromises made to 'win' the show - many of which you would me smart not to emulate.
weight-loss/
Makes some interesting points about the compromises made to 'win' the show - many of which you would me smart not to emulate.
David "Chef" Wallack, He Knows What
http://www.facebook.com/note.php?note_id=156298352295&ref=nf
"I believe" leaves a doubt, herein lies what I know.
1. I know that being an expert means 'knowing more and more about less and less' and that in that simplicity lies the joy of being part of such a complex community. The deep reaching and ever evolving knowledge of the experts in our CrossFit family builds a foundation impervious to fad or the fickle finger of fate.
2. I know that without Coach I would never know the joy of using the word 'milieu' on a regular basis. ;-);
3. I know that we long to fill our flesh with soul and to fill our soul with flesh, that we will one day, within us, reconcile the two eternal antagonists. Until that time we travel both paths, pleasure and pain, success and failure, with our eyes on the future not on the past. We plant trees in form of seeds.
4. I know that, as Voltaire said, "A small effort every day and the seemingly impossible completes itself." In more direct terms? To paraphrase Coach Jeff Tincher, 'You have to work your bitches.' CrossFit is like eating an Elephant: you go one bite at a time.
5. I know that I can give my athletes no more than a cue, a watchful eye and the promise that if it will get them to a higher place, a more solid base, a place where no goal is out of reach, I will move mountains with my bare hands. No one gets left behind. Ever.
6. I now know that 'Elite' is a personal benchmark and that it's the path not the peak. 'Hey Mister,
how much can you deadlift?', "A little more than yesterday, a little less than tomorrow."
7. I know that when one of my athletes goes from "I can't" to "I can," from "I can" to "I will," and finally from "I can" to "I must", I often have to turn my head to hide the tears.
8. I know that the willingness to walk, arm in arm, often bloodied and bruised, into new levels of challenge, into harms way, from complacency to extreme discomfort, to carry our weakest to the finish line is what makes our community a model for my life, my relationships and for the path I want for my children.
9. I know that after all these years, I don't give a shit what goes on inside the box. I have become a fitness whore. Thanks, Coach.
10. Finally, I know that one must be moderate in all things, even in one's moderation: you have to binge to be truly moderate. CrossFit is my reward.
"I believe" leaves a doubt, herein lies what I know.
1. I know that being an expert means 'knowing more and more about less and less' and that in that simplicity lies the joy of being part of such a complex community. The deep reaching and ever evolving knowledge of the experts in our CrossFit family builds a foundation impervious to fad or the fickle finger of fate.
2. I know that without Coach I would never know the joy of using the word 'milieu' on a regular basis. ;-);
3. I know that we long to fill our flesh with soul and to fill our soul with flesh, that we will one day, within us, reconcile the two eternal antagonists. Until that time we travel both paths, pleasure and pain, success and failure, with our eyes on the future not on the past. We plant trees in form of seeds.
4. I know that, as Voltaire said, "A small effort every day and the seemingly impossible completes itself." In more direct terms? To paraphrase Coach Jeff Tincher, 'You have to work your bitches.' CrossFit is like eating an Elephant: you go one bite at a time.
5. I know that I can give my athletes no more than a cue, a watchful eye and the promise that if it will get them to a higher place, a more solid base, a place where no goal is out of reach, I will move mountains with my bare hands. No one gets left behind. Ever.
6. I now know that 'Elite' is a personal benchmark and that it's the path not the peak. 'Hey Mister,
how much can you deadlift?', "A little more than yesterday, a little less than tomorrow."
7. I know that when one of my athletes goes from "I can't" to "I can," from "I can" to "I will," and finally from "I can" to "I must", I often have to turn my head to hide the tears.
8. I know that the willingness to walk, arm in arm, often bloodied and bruised, into new levels of challenge, into harms way, from complacency to extreme discomfort, to carry our weakest to the finish line is what makes our community a model for my life, my relationships and for the path I want for my children.
9. I know that after all these years, I don't give a shit what goes on inside the box. I have become a fitness whore. Thanks, Coach.
10. Finally, I know that one must be moderate in all things, even in one's moderation: you have to binge to be truly moderate. CrossFit is my reward.
Fats - Guilty of Little, Wrongly Convicted
"*Of course, they didn't mention the sucrose in the methods section. I had to go digging around for the diet's composition. This is typical of papers on "high-fat diets". They load them up with sugar, and blame everything on the fat. This kind of shenanigans wouldn't fly in a self-respecting field, but it's typical of nutrition-health papers."
http://wholehealthsource.blogspot.com/2009/05/eicosanoids-fatty-liver-and-insulin.html
http://wholehealthsource.blogspot.com/2009/05/eicosanoids-fatty-liver-and-insulin.html
Sugars and the Diseases of Civilization
In "Good Calories Bad Calories", Gary Taubes coined the term "Frankenstein of Sugars" for fructose. Think of all the fructose powered coke/soda pop/yogurt/cereal you've eaten in your life ...
Here's a concise explanation of Frankenstein:
http://wholehealthsource.blogspot.com/2009/04/fructose-vs-glucose-showdown.html
"Tuesday, April 21, 2009
Fructose vs. Glucose Showdown
As you've probably noticed, I believe sugar is one of the primary players in the diseases of civilization. It's one of the "big three" that I focus on: sugar, industrial vegetable oil and white flour. It's becoming increasingly clear that fructose, which constitutes half of table sugar and typically 55% of high-fructose corn syrup, is the problem. A reader pointed me to a brand new study (free full text!), published in the Journal of Clinical Investigation, comparing the effect of ingesting glucose vs. fructose."
Here's a concise explanation of Frankenstein:
http://wholehealthsource.blogspot.com/2009/04/fructose-vs-glucose-showdown.html
"Tuesday, April 21, 2009
Fructose vs. Glucose Showdown
As you've probably noticed, I believe sugar is one of the primary players in the diseases of civilization. It's one of the "big three" that I focus on: sugar, industrial vegetable oil and white flour. It's becoming increasingly clear that fructose, which constitutes half of table sugar and typically 55% of high-fructose corn syrup, is the problem. A reader pointed me to a brand new study (free full text!), published in the Journal of Clinical Investigation, comparing the effect of ingesting glucose vs. fructose."
Carb Control, Success
"130 obese men and women were placed on iso-caloric diets (1,700 calories for females and 1,900 calories for males). Half were following the Zone Diet guidelines (30 percent protein, 40 percent carbohydrates, and 30 percent fat), and other half were following the USDA Food Pyramid dietary guidelines (15 percent protein, 55 percent carbohydrates and 30 percent fat). At the end of one year, those on the Zone Diet had lost 38 percent more fat mass than those on the USDA Food Pyramid diet. The LDL levels were the same in both groups, but the triglyceride levels were much lower and the HDL higher for those following the Zone Diet" http://www.facebook.com/note.php?note_id=134993781708&ref=nf
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