Joe84 said:
If protein is converted to fat, stored, and then burned, would you not say that that was a rather inefficient process?
So is excreting it in the urine. That would be approximately... 0% efficient.
Yes, I agree. It's very inefficient... which is exactly the point. Protein is a building material. Beyond what you need to build new body tissues and rebuild damaged tissues, some will become fat and the rest will be flushed, first from the body and then from the porcelain bowl.
Joe84 said:
First of all... "experts"? What "experts"? I could tell you that tracns fats are an essential part of your diet. "Are you sure?", you might ask. "Trust me", I'd say. "I'm an expert". If only you asked "An expert at what?", you might find it was nothing to do with nutrition, but computers, or something else completely unrelated. The word "expert" is so commonly used within the world of nutrition, usually to sell something, that I have become completely intolerant of it..
You're right. The word "expert" is not only overused but often misused. I hear it all of the time in regard to people who attended an 8-hour class on some subject. So, off the top of my head...
Dr. John McDougall - Nutritionist, Author
Dr. Neal Bernard - Nutritionist, Author
The Late, Nathan Pritikin - Nutritionist, Former owner/founder of The Pritikin Longevity Center
John Robbins - Author, Researcher
Frances Moore Lappe - Author, Researcher
Joe84 said:
Secondly, if I ate a diet that consisted of 100% protein (I don't, by the way), how could protein be attributed to only 0% to 10% of my total energy produced? If this is true, the only other place my body could take energy from is my fat reserves, and... hang on a minute... that's a good thing!.
I'm glad to hear that you're not trying for 100% protein. The suggestion alone makes me curious as to whether or not this would be possible without resorting to highly processed forms of pure protein. In many cases, especially in the cases of the more popular protein sources, there is a fair amount of fat included with the protein as well as other nutrients. Plant proteins probably contain less fat but I think many people under-estimate the amount of fat available in plant foods.
Burning fat reserves at a very slow rate while obtaining most of the body's energy from it's preferred fuel source -- carbohydrates,
is a good thing. When the body receives nothing but protein, first, as you mentioned, the body begins to burn fat because it can't utilize protein well as an energy source, which again, is my point. If you ingested nothing but protein, then the body would use from 0% - 10% of that protein, as an inefficient fuel source and convert some to fat which is then broken down by the liver into ketones and the ketones are then burned as fuel. Which, again, as you stated is a very inefficient system. Ultimately, such a diet would lead to metabolic acidosis.
When talking about losing fat, one must remember that the human diet contains a number of things we'd rather not ingest, but have little choice. Among these things are hormones, antibiotics, (fed to livestock) and pesticides. The pesticides, (usually organo-halogens or chlorinated hydrocarbons), are fat soluble so that they don't wash off the crops in the rain. Because of this, they end up stored in the body's fat reserves. When you lose a lot of fat in a short period, these toxins are "unlocked" from the fat stores and released into the body. This is one of the reasons that care should be taken to lose fat at a moderate pace.
(...snip...)
Joe84 said:
Something I forgot to mention in my previous post is that carbohydrates and fat also turn the blood alkaline, so calcium is not alone in it's "PH battle" against the evil protein and it's amino acid minions (I apologise... I'm not quite sure where that came from...).
If it was, then you would have no skeleton left, considering the many kilos of protein that you have ingested in your lifetime compared to the miniscule amount of calcium.
No apology necessary.

In fact, a look into the shenanigans for which the egg industry in America, specifically the National Commission on Egg Nutrition, are responsible suggests that the word "evil" may not be all that inappropriate. The words used by the court, (Judge Ernest G. Barnes, 1971, I believe) were,
"false, deceptive, misleading and unfair". This was in regard to a claim made by the egg industry that there was no scientific evidence linking consumption of eggs to increased risk of heart attack. The Judge, in issuing his decision against the egg industry stopped short of the word "evil".

...but that's another issue.
Having "no skeleton left" is essentially, (though less exaggerated), what osteoporosis is. The skeleton is often so depleted that the texture of the bone becomes very sponge-like. Many sufferers have broken bones, (even vertebra and ribs), through the simple act of coughing or sneezing. A high level of hip fracture from falls in elderly actually occur in the reverse order. The hip bones become so weak that the bone breaks, (usually the condyle of the upper femur), just from the person placing their body weight on it. The fracture causes the fall.
Apparently, and I haven't found any research on this but I will look, since carbohydrates and fat shift the blood PH toward the alkaline side of the scale, they must do so in a fairly minimal way. Many studies have been done that all show the same thing. Low-protein diets lead to positive calcium balance while high-protein diets lead to negative calcium balance.
For Example:
1. Anad, C., "Effect of calcium intake on calcium balance of young men given 500mg calcium daily" - Journal of Nutrition, 104:695, 1974
2. Hegsted, M., "Urinary calcium and calcium balance in young men as affected by level of protein and phosphorus intake" - Journal of nutrition, 111:53, 1981
3. Walker, R., "Calcium Retention In the Adult Human Male As Affected by Protein Intake," Journal of Nutrition, 102:1297, 1972
4. Johnson, N., "Effect of Level of Protein Intake on Urinary and Fecal Calcium Retention of Young Adult Males," Journal of Nutrition, 100:1425, 1970
5. Linkswiler, H., "Calcium retention of young adult males as affected by levels of protein and calcium intake" - Trans New York Academy of Science, 36:333, 1974
Study #1
Calcium Intake (milligrams): 500
Change in Calcium on Low-Protein diet: +31
Change in Calcium on High-Protein diet: -120
Study #2
Calcium Intake (milligrams): 500
Change in Calcium on Low-Protein diet: +24
Change in Calcium on High-Protein diet: -116
Study #3
Calcium Intake (milligrams): 800
Change in Calcium on Low-Protein diet: +12
Change in Calcium on High-Protein diet: -85
Study #4
Calcium Intake (milligrams): 1400
Change in Calcium on Low-Protein diet: +10
Change in Calcium on High-Protein diet: -84
Study #5
Calcium Intake (milligrams): 1400
Change in Calcium on Low-Protein diet: +20
Change in Calcium on High-Protein diet: -65
Average
Calcium Intake (milligrams): 920
Change in Calcium on Low-Protein diet: +19
Change in Calcium on High-Protein diet: -94
"Throughout the world, the incidence of osteoporosis correlates directly with protein intake. In any given population, the greater the intake of protein, the more common and more severe will be the osteoporosis."
Chalmers, J., "Geographic Variations of Senile Osteoporosis," Journal of Bone and Joint Surgery, 52B:667, 1970
Joe84 said:
I agree. 50 - 70% is overboard, but I would have to disagree that 1 gram of protein per pound of body weight is sufficient to optimise lean body mass gains, and it's definately not enough to maximise fat loss.
I notice that Arnie said "...my formula for basic eating...". Emphasis on "basic". I also noticed that you edited (snipped) heavily. Is he recommending a diet for a bodybuilder? Or someone looking to stay in shape?
I agree with your skepticism regarding incomplete quotations. You always have to wonder what was removed and why. I'm glad to see that you're not one to happily grasp anything handed to you without a few questions being asked. Sorry about the snipped portions but the information came as a reference to the book rather than directly from the book so I included it exactly as I read it. I have had occassion to find some original sources which are quoted in the book I have, and have yet to find any edited quote, the meaning of which was changed when reading the passage in its entirety. It's generally considered to be a well-regarded source.
It seems the 1 gram per pound strategy works for Arnold. Since most people consume far more protein than necessary, and since excess protein is excreted in the urine, it follows that even bodybuilders could well be over-consuming. But the over-consumption of protein won't hamper the building of lean body mass. The negative results are a gradual, cummulative process and will show up years after the people are too old to compete at the pro level.
Joe84 said:
I'd just like to point out that protein is fairly useless (for gaining lean body mass) unless it's complete, which protein from broccoli (or any other vegetable, unless combined) is not.
What you've stated here is the subject of entire books which have been written to convey the importance of combining foods to obtain a complete protein. Many in the protein industry still cite the studies from which this idea came. The studies were performed in the 1940s using rats as test subjects. The studies not only showed a need for a high percentage of calories from protein but that eggs contained the "ideal" protein. This is why the idea of combining foods to obtain the best possible ratio of amino acids, used eggs as a model. One very popular book which outlined the importance and methods regarding combining protein sources was "Diet for a Small Planet", written by Frances Moore Lappe in the late 1960s.
Of course, knowledge and research don't stand still for long and many more studies, (using humans this time), have since been completed. The outcome of the studies using humans were quite different from the ones in which rats were used. Human tests showed that not only are eggs not the ideal protein source, but many plant sources are actually superior (for humans), than animal-sources. This newer information also showed that, while certainly not unhealthy, there really is no need to combine foods to obtain the proper levels/mix of amino acids.
Frances Lappe found the new information to be so compelling that in 1981 she issued a re-write of "Diet for a Small Planet", (the Anniversary issue), in which she referred to the ideas outlined in her original book regarding the need to combine foods for the best protein as
"a myth". The original book contained 280 pages, of which 200 were dedicated to combining protein sources. The newer book was expanded to 455 pages, and only 60 concern combining proteins and those were mostly about how the ideas concerning the benefits of combining proteins have changed.
Joe84 said:
I ate a kilo of peas in a day once. Last time I ever eat so many greens in the space of 8 hours.
LOL! Yeah, can't disagree at all with you there!
It's important, especially for me since I've spent a lot of time reading the "common knowledge" of today, to remember that research methods change, usually for the better, and therefore, the results change, hopefully in positive respects regarding accuracy. (So remind me once in a while, okay?) What I know as "true" today, may well be the laughable myths of tomorrow. I'm not going to like that when it happens, since I'll have to re-learn much of what I "know" now. I suppose that's the case with most things but is a necessary part of the process of getting to the most accurate "truth" possible.
Gee, you'd think I could write a few paragraphs without having to edit about a dozen times.
