395 lines
23 KiB
Plaintext
395 lines
23 KiB
Plaintext
The following article was taken from Vol 3 # 2 newsletter of Vitamin
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Research Products and may be freely distributed in whole or part.
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Get Lean Without Getting Hungry
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By Durk Pearson and Sandy Shaw
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Too much body fat is the bane of competitive body builders. You can have
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terrific muscles, but if they are buried under too much subcutaneous (below
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the skin) fat, you look smooth and you lose.
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Too much fat is ugly, and it can kill you, too.
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Most scientists studying obesity say that 20% or more above the "ideal"
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weight puts a male at medical risk for increased risks of cardiovascular
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disease, cancer, and perhaps other diseases such as diabetes. Stored body
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fats are susceptible to oxidation (in contact with oxygen and other
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substances with similar chemical effects) that cause them to become rancid
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or, technically, peroxidized. These rancid fats are carcinogenic (can
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cause cancer), mutagenic (can damage DNA, your body's blueprints),
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thrombogenic (can cause abnormal blood clots leading to heart attacks or
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strokes), and are immune suppressors (reduce the effectiveness of your
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immune system which defends you against bacteria, viruses, and cancer).
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It is more than a coincidence that the frequency of these illnesses increases
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rapidly with both increasing obesity and advancing age.
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Free Radicals and Aging
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When the fats are oxidized, a lot of free radicals are created. Indeed, fats
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are the number one target for free radical damage in your body because when a
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free radical attacks fat, it can cause a chain reaction which creates
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hundreds, thousands, or even millions of additional damaging free radicals.
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You will be hearing a lot about free radicals in the next few years! Free
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radicals are promiscuously chemically reactive entities that are usually
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controlled in your body, but when they get out of control they can do a lot
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of damage. If you got a lethal dose of X-rays, it would be the free radicals
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created by the X-rays that would actually kill you. One well supported major
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theory of aging, the free radical theory of aging, states that over a
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lifetime, accumulated unrepaired damage by free radicals causes much of the
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deterioration that we recognize as aging.
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Experimental animals that have had their lives extended have much leaner
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bodies than their littermates that don't live so long. This "leaner is
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longer" is true whether the animals' lives were extended by calorie
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restriction or by supplementation with antioxidants that control free
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radicals such as the food preservative BHT, or the free radical-controlling
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nutrients vitamin E, vitamin B-5, and the nutrient amino acid cysteine.
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Body Fat is Nature's Ice Age Life Insurance!
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Back in the bad old days (not so long ago!), almost everyone died young -
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generally in their twenties or thirties, if not earlier. Few people lived
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long enough to die of obesity-related cardiovascular disease and cancer,
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while millions died of starvation. Modern agricultural technology has
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brought us a cornucopia of food, but our genes are still programmed for a
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time when famine, not fat, was our greatest danger.
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Because of this, the body often holds on tenaciously to that warm body fat
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security blanket, especially in those who have inherited "fat" genes (body
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build has been proven to be inherited) making it an especially difficult
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job to get the fat off and, particularly, to KEEP it off. A Scandinavian
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study of twins separated at birth by adoption showed that genetics is
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responsible for at least 85% of whether one has a lean, medium, or fat build.
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The home environment of the adopting parents was not provably responsible
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for even a part of their adoptees' body build, though there might have been
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minor effects too small to detect.
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Another scientific study has shown that 95% of the people who lose weight
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on a calorie restricted diet regain every pound of it within one year! That
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5% success rate is worse than the cure rate for terminal cancer, but the diet
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quacks keep telling people to count their calories and go hungry. There are
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a lot of things that the diet quacks don't tell you, too. They don't tell
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you that if you use their caloric restriction techniques, that you will have
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to go hungry for the rest of your life, or the fat comes right back. They
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don't tell you that caloric restriction can make the hunger and weight
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controlling hypothalmus gland in your brain think that there is a famine, and
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consequently change your body's biochemistry to make it more efficient,
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causing a weight plateau even if you are on a potentially dangerous
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starvation diet. They don't tell you that caloric restriction actually shuts
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off your most efficient body fat reduction mechanism. And they don't tell
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you that losing weight and then regaining it is much worse than futile!
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Weight Loss Versus Fat Loss
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Most of you probably know that losing weight is not the same as losing fat.
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But you may not know that on a low calorie diet, if it is not accompanied
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by very heavy exercise, 25% of the weight you lose will be lean body mass,
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not fat! Even if you do very heavy exercise, there will still be a lean body
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mass loss of about 5%. The weight that you regain after you stop dieting is
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almost entirely fat, however. If you frequently cycle between eating as
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normal and eating a low-calorie diet, you can actually end up with less
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muscle mass than when you started, though your weight will not show it. Your
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body fat percentage measurements and your contest results will certainly
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show it, however. For that reason, we do not recommend a low calorie diet
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as a way to lose body fat. Morever, remember that 95% of people who lose
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weight on a low-calorie diet regain all of it within a year! Restricting
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one's food intake by willpower is a very unnatural way to lose body fat, with
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delicious and fattening foods all around and readily available.
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We recommend methods that use natural body mechanisms of fat control, not
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unnatural self-starvation willpower. If our ice age ancestors had been
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willing to go hungry when they could get food, the human species would be
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extinct.
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New scientific research findings in recent years have uncovered natural body
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mechanisms for getting rid of body fat that work WITH your body, rather than
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against it, making the job of getting fat off and keeping it off relatively
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easy. These techniques do not require your going on a low calorie diet, being
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hungry, or doing any extra work.
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Perhaps the most important of all to the dedicated body builder, they cause
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no loss of lean body mass, they do not require drug use, nearly all are IFBB,
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AAU, and Olympic legal, and they are completely natural.
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The Glycemic Index: A Key Concept for Fat, Hunger, and Energy Control
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A popular magazine recently stated that the calories from table sugar were
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more likely to fatten you than the calories from a potato because the potato
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contains a lot of complex carbohydrates that your body has to break down. But
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they were wrong! In fact, the calories from a potato are more likely to fatten
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you than the calories from pure table sugar! Why? Because of something
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discovered just within the past few years called the glycemic index(1).
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It has become a well established theory among scientists studying obesity
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that the ratio of the hormone insulin (released in response to increases in
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blood sugar) to that of growth hormone (a natural anabolic non-steroid
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hormone that stimulates muscle building and fat burning) plays a mojor role
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in controlling your body ratio of fat to muscle. Insulin is a necessary
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hormone without which body cells could not burn the glucose or blood sugar
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circulating in the bloodstream for energy. However, too much insulin results
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in the conversion of any excess glucose in the bloodstream to stored fat.
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Remember, stored fat is your life insurance policy against famine. Your
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genes don't realize that you are living in the 20th century in America and
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have more than enough food to survive. Your body, especially after young
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adulthood, still tends to accumulate stores of fat to use in a food shortage
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"emergency".
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Recent research also indicates that individuals who secrete extra large
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amounts of insulin in response to carbohydrates are at extra risk for
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cardiovascular disease. Thus, it is good for nondiabetics, as well as
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diabetics, to keep blood glucose -- and insulin levels -- under control.
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All Carbohydrates are not Created Equal
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This brings us to the glycemic index. Most carbohydrates (sugars and starchy
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foods) increase blood levels of glucose by being broken down into sugars in
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the digestive tract and absorbed. But there is a big difference in how much
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particular carbohydrates increase blood sugar and how fast they do it.
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Scientists studying this (so they could advise diabetics what they should and
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should not eat) found a very surprising thing: some complex carbohydrates
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(like potato) increased blood sugar levels more than simple sugars like
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sucrose (the table sugar found in candy bars, etc.) They devised a way of
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comparing different carbohydrates called the glycemic index.
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The glycemic index of a particular food is the ratio of how much a certain
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quantity of that food increased blood sugar divided by how much that same
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quantity of glucose increased blood sugar, then multiplying this ratio by
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100. So, a glycemic index of 100 meant that the food increased blood sugar
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as much as glucose; numbers higher represent foods that increase blood sugar
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more than glucose while numbers lower represent foods that increase blood
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sugar less than glucose.(1)
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Using the glycemic index gives you a real insight into the physiological
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effects of the foods you eat. Table sugar (sucrose) has a glycemic index of
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59, while the natural fruit sugar fructose has a glycemic index of only 20.
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Honey has a whopping glycemic index of 87 and whole wheat bread's glycemic
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index is 72, higher than (yetch) white bread (69), and much higher than pure
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table sugar (50)! On the other hand, a whole grain rye bread has a glycemic
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index of only 42.
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Most corn and wheat products have a much higher glycemic index than rye or
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oat products. This why corn and wheat, not oats and rye, are used in cattle
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fattening feed lots. When the sedentary cattle eat the corn and wheat, a lot
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of insulin is released, causing the blood sugar made from the ingested
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carbohydrates to rapidly enter the cattle's fat storage cells and get
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converted to stored body fat. This huge insulin release drives so much blood
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sugar into the cattle's fat storage cells that their blood sugar drops below
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normal, making them crave more carbohydrates, which starts the whole
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hunger-feeding-fattening cycle over again. You can help avoid fattening
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yourself up like feedlot cattle by watching the glycemic index of what you
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eat.
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Not all corn and wheat products have high glycemic indices, however. Pasta,
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in general, has a low glycemic index - even if made from corn or wheat flour.
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This may be the scientific reason that pasta is so important in the Pritikin
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weight loss program.
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Do you have to give up eating sweets? Not at all! You can eat delicious
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sweet desserts and snacks sweetened with fructose, which has the lowest
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glycemic index of all carbohydrates tested, 20.
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You can get fructose in health food stores and in the diabetic section of
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large supermarkets, where it is sold mainly to diabetics who use it instead
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of regular sucrose on the advice of their physicians. You can also find jams
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that are made with fructose there. Under the cold acid conditions found in a
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citrus energy drink, fructose is actually 70% sweeter calorie per calorie
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than sucrose.
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Losing Fat and Putting on Muscle while Pigging out on Ice Cream!
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Ice cream, even sweetened with table sugar, sucrose, has a glycemic index of
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only 36 (probably due to the emulsion structure of the ice cream slowing
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absorption of the sugar), compared to 32 for skimmed milk. Indeed, a home
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made ice cream using fructose instead of sucrose has a glycemic index too
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low to measure! It causes no significant measurable blood sugar increase,
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and can even be eaten by many diabetic patients.
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One body builder saw Durk talking about ice cream, glycemic indices, and body
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fat on one of Durk's 30 or so appearances on the Merv Griffin show. He
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thought that the whole idea was crazy, and set out to prove it by eating two
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to three pints of ice cream per day in addition to his regular diet! He also
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used the nutrient human growth hormone releasers that Durk had discussed.
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(An upcoming issue of Durk and Sandy's newsletter will feature an article on
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GH releasers and how to use them.) In ten weeks of ice cream piggery, he
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lost 3 1/2" from his waist and added 1" to his chest! His weight loss was
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6 1/2 pounds, but since he put on muscle while losing fat, his fat loss was
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substantially greater than his weight loss. Compare that to going hungry on
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a calorically restricted diet where you lose muscle along with the fat! (See
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our Life Extension Weight Loss Program for more details of this case history,
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and for the limits to validity of any case history type study. Case
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histories, unlike scientific animal experiments and double-blind placebo
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controlled experiments on humans can never prove anything, but they sometimes
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provide interesting research leads.)
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Eating a Meal of Mixed Foods
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When eating a combined meal, the effects of the glycemic index are attenuated.
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A high glycemic index food will generally be less effective at increasing
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blood sugar levels when mixed with other food, especially when there is a lot
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of soluble fiber or fat in the other foods. Thus, the glycemic index can be
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used most effectively to compare individual food items, such as snacks, or
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athletic carbohydrate preloads.
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IMPORTANT SAFETY NOTE
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Consumption of large amounts of fructose can have serious adverse
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cardiovascular effects if you are copper deficient, and according to U.S.
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Department of Agriculture scientists, about half of all Americans are copper
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deficient. Play it safe; take a mineral supplement of the FDA's Recommended
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Daily Allowance of copper, 2 milligrams per day, preferably in chelated form.
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Thermogenesis, the Cool Way to Lose Fat -- and Only Fat!
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Your body has a major means of getting rid of extra fat that was just
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discovered within the past few years called thermogenesis. You have small
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deposits of a special fat in your body that are called brown fat because,
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compared to ordinary fat (a whitish color), they look brown. This brown fat
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has evolved to perform one special task: it burns regular white stored body
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fat to create heat which can keep your body warm. These thermogenic (heat
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generating) brown fat deposits are activated by cold, eating certain types
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of food, by sustained, heavy exercise, and other stimuli. Even though these
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brown fat deposits amount to only about 1% of your body fat, they can have an
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amazing effect on your body fat percentage because, when activated, they can
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burn their own weight in white fat every twelve hours!
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Thermogenesis Versus Exercise for Fat Loss
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Amazingly, exposure to cold is a more effective way to lose excess body fat
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than is heavy exercise. Experimental animals exposed to moderate cold and
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allowed to eat all they wanted actually ate more food than exercised animals
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but lost more body fat! It is not necessary to be shivering cold to take
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advantage of this body fat loss mechanism, however. In ordinary street
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clothes, thermogenesis turns on at about 72 degrees F, not an uncomfortable
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temperature. If you wear less, thermogenesis turns on at even higher
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temperatures, typically between 82 and 86 degrees F for someone nude or
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wearing shorts. You can use this technique for fat loss without dietary
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change or even exercise by turning down your thermostat in cool weather one
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degree Fahrenheit each week (or setting your air conditioner down one degree
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Fahrenheit each week) which will cause you to become thermogenically
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activated and cold adapted. Visitors may find your home somewhat chilly, but
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you won't! And they will be amazed at how much you eat and yet remain lean!
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This effect is worth about 25 pounds of fat loss per year for someone
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starting from a normal body fat percentage, and, unlike caloric restriction,
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becomes more - not less - effective as you lose more body fat.
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How a Three Piece Suit Can Help Make You Fat and How Body Builder's Posing
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Briefs Can Help Make You Lean
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The type of clothes that you wear can help make you either fat or lean! The
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calorie content of a food is simply a measure of the heat energy released when
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you burn the food in your body, just like heat calories are released when you
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burn a log in your fireplace. If your house has little insulation and lots
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of drafty heat leaks, you will have to burn a lot more logs - a lot more
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calories - to keep your home warm. This is also true for clothes. Clothes
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that keep heat in, keep calories in, so that more calories can be stored as
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body fat. Clothes that let heat out let calories out, too. The difference
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between a three piece wool worsted suit and an equally socially acceptable
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tropical weight suit can be up to about 25 pounds of body fat per year.
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Exercise in which body temperature is not allowed to rise is another way to
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stimulate thermogenesis, since your brown fat must keep burning off white fat
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to maintain your body temperature. Swimming is ideal, since you are able to
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do the heavy, sustained type of exercise that produces the most benefits,
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including cardiovascular conditioning, without increasing your body
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temperature (which inhibits thermogenesis). Or, if you prefer weightlifting,
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which is better for muscle building because it is a peak output form of
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exercise, you can use a fan to air condition your body as you exercise. Use
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a variable speed fan to blow the hot air away, and further cool you by
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evaporating your sweat, thereby allowing your body to remain cool, which
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stimulates thermogenesis.
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The last thing you want to do is work out in a sweat suit, which keeps in your
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body heat, depressing your brown fat thermogenesis. What you lose with a
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sweat suit is nearly all sweat (water and salts), not fat. Think cool! You
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can lose more body fat by driving around in an air conditioned Cadillac with
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nothing on but your jogging briefs than you can struggling along jogging in
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a sweat suit! Why work so hard to defeat your most important fat loss
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mechanism!
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Certain foods enhance your brown fat's thermogenic activity, too. A low
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carbohydrate diet is a real turnoff to thermogenesis, as carbohydrates
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stimulate thermogenesis. However, not all carbohydrates are equally
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effective in doing this. The natural fruit sugar in fructose is about twice
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as good in stimulating thermogenesis as is regular table sugar, sucrose, yet
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it only releases about 1/3 as much insulin, the fat storing hormone.
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Have you ever eaten a big meal, then awakened in the middle of the night with
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the back of your neck covered with sweat? You were experiencing diet induced
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thermogenesis; your biggest deposits of brown fat are at the back of your
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neck.
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A very low fat diet also reduces thermogenesis. Experimental animals fed the
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typical high fat American diet and exposed to cold ended up with less body
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fat than animals fed low fat diets! Recent studies indicate that about 30%
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of one's calories should be fat, that 40% (about the typical American diet)
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is too high and that 20% is too low. See our Life Extension Weight Loss
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Program(2) for information on special fats called MCTs (medium chain
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triglycerides) that strongly stimulate thermogenesis, cannot be stored as
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body fat, and even make you burn regular body fat.
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Even during AAU and Olympic competition, though, you can use a supplement
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containing the essential amino acid nutrient L-phenylalinine, along with
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vitamin and mineral co-factors required for your body to convert it to
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noradrenaline, the brain's version of adrenaline, which gives you the
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sustained drive you need in any competitive situation. Try a formulation
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that contains fructose and other nutritional cofactors such as our RISE &
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SHINE (tm).
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Just how thermogenic is fat loss? Normal laboratory rodents will have body
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fat percentages from about 15% to about 18% when eating all the lab chow that
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they want. If you give them an unlimited supply of a wide variety of human
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junk foods, they really fatten up, eating 50% or so additional calories, and
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going to about 50% to 80% body fat. If you allow them to continue to eat all
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the junk food they desire, but apply thermogenic techniques, they will eat
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even more junk food, but their body fat percentages will fall to the 4% to
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7% range!
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Just as there are natural body mechanisms for storing up body fat (nature's
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insurance policy against a famine), there are also natural mechanisms for
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getting rid of fat (such as using it as a source of energy when it is cold).
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Rather than fight your body's fat storage mechanisms, stimulate those that
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cause your body to eliminate body fat, which is a lot easier on you and a lot
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more effective, too! Understanding the mechanisms by which your body works
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is always the best way to get what you want from it.
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Live long & stay strong,
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Durk Pearson & Sandy Shaw
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1) See our article on this subject "Inside Sugar" in the June 1987 issue of
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Joe Weider's Sports Fitness which includes a glycemic index of many different
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foods. This article tells you how to select the right type of carbohydrates
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for training and for performance (they are not necessarily the same), and how
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to use the glycemic index to avoid many common foods which make you hungrier
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for more carbohydrates than if you hadn't eaten anything at all!
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2) There is no way to condense the contents of a 365 page book into a 4100
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word article. For example, we haven't even touched on the use of "Designer
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Food(tm)" nutrient supplements that control hunger with 90% to 95% fewer
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calories than regular foods. For our full approach to natural fat loss,
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including 17 different methods which do not involve dieting, hunger or extra
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exercise, and which cites 386 references to the published scientific
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literature, see our Life Extension Weight Loss Program, now available
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everywhere in paperback, published by Doubleday Book Co. We really wanted
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to call it Scientifically Remodeling Your Body, or at least The Life
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Extension Fat Loss Program, but Doubleday wanted the title to make our book
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look like a competitor with diet books.
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----------------------------------------------------------------------------
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You can read much more by these two scientists about their latest work in the
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monthly eight page per issue Durk Pearson and Sandy Shaw's Life Extension
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Newsletter which is available from VRP for $29.95 for a one year charter
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subscription starting from the first issue. Just like the Wall St Journal,
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your money will be refunded for unsent issues if you are not completely
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satisfied.
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Vitamin Research Products' address is: 2044 Old Middlefield Way,
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Mountain View, CA 94043
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